./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7 --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 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:35:02,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:35:02,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:35:02,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:35:02,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:35:02,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:35:02,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:35:02,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:35:02,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:35:02,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:35:02,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:35:02,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:35:02,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:35:02,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:35:02,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:35:02,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:35:02,442 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:35:02,443 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:35:02,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:35:02,448 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:35:02,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:35:02,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:35:02,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:35:02,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:35:02,460 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:35:02,460 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:35:02,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:35:02,462 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:35:02,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:35:02,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:35:02,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:35:02,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:35:02,466 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:35:02,467 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:35:02,468 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:35:02,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:35:02,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:35:02,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:35:02,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:35:02,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:35:02,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:35:02,478 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:35:02,529 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:35:02,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:35:02,530 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:35:02,530 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:35:02,537 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:35:02,537 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:35:02,538 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:35:02,538 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:35:02,538 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:35:02,538 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:35:02,539 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:35:02,540 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:35:02,540 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:35:02,540 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:35:02,540 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:35:02,541 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:35:02,541 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:35:02,541 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:35:02,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:35:02,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:35:02,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:35:02,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:35:02,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:35:02,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:35:02,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:35:02,544 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:35:02,546 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:35:02,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:35:02,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:35:02,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:35:02,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:35:02,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:35:02,548 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:35:02,548 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:35:02,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:35:02,548 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:35:02,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:35:02,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:35:02,549 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2021-11-25 20:35:02,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:35:02,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:35:02,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:35:02,848 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:35:02,849 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:35:02,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-25 20:35:02,948 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/data/d58ed056c/1d4b3139293f4eec9a4ad72fd72d1336/FLAGd41e5134f [2021-11-25 20:35:04,171 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:35:04,172 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-25 20:35:04,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/data/d58ed056c/1d4b3139293f4eec9a4ad72fd72d1336/FLAGd41e5134f [2021-11-25 20:35:04,431 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/data/d58ed056c/1d4b3139293f4eec9a4ad72fd72d1336 [2021-11-25 20:35:04,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:35:04,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:35:04,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:35:04,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:35:04,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:35:04,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:35:04" (1/1) ... [2021-11-25 20:35:04,447 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@491db294 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:04, skipping insertion in model container [2021-11-25 20:35:04,447 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:35:04" (1/1) ... [2021-11-25 20:35:04,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:35:04,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:35:07,877 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-25 20:35:07,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-25 20:35:07,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:35:07,953 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:35:08,556 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2021-11-25 20:35:08,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2021-11-25 20:35:08,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:35:08,804 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:35:08,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:08 WrapperNode [2021-11-25 20:35:08,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:35:08,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:35:08,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:35:08,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:35:08,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:08" (1/1) ... [2021-11-25 20:35:08,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:08" (1/1) ... [2021-11-25 20:35:09,185 INFO L137 Inliner]: procedures = 411, calls = 1719, calls flagged for inlining = 194, calls inlined = 178, statements flattened = 4161 [2021-11-25 20:35:09,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:35:09,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:35:09,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:35:09,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:35:09,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:08" (1/1) ... [2021-11-25 20:35:09,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:08" (1/1) ... [2021-11-25 20:35:09,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:08" (1/1) ... [2021-11-25 20:35:09,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:08" (1/1) ... [2021-11-25 20:35:09,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:08" (1/1) ... [2021-11-25 20:35:09,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:08" (1/1) ... [2021-11-25 20:35:09,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:08" (1/1) ... [2021-11-25 20:35:09,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:35:09,525 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:35:09,525 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:35:09,525 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:35:09,526 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:08" (1/1) ... [2021-11-25 20:35:09,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:35:09,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:35:09,562 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:35:09,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_866aa4c8-8bd6-4b7c-a4e0-3877143d912f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:35:09,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2021-11-25 20:35:09,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2021-11-25 20:35:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-25 20:35:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-25 20:35:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 20:35:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 20:35:09,612 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 20:35:09,612 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 20:35:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 20:35:09,613 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 20:35:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:35:09,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:35:09,613 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 20:35:09,614 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 20:35:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-11-25 20:35:09,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-11-25 20:35:09,614 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-25 20:35:09,615 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-25 20:35:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2021-11-25 20:35:09,615 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2021-11-25 20:35:09,615 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2021-11-25 20:35:09,615 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2021-11-25 20:35:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 20:35:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 20:35:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 20:35:09,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 20:35:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 20:35:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 20:35:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-11-25 20:35:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-11-25 20:35:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 20:35:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 20:35:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 20:35:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 20:35:09,618 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-25 20:35:09,618 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-25 20:35:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:35:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2021-11-25 20:35:09,619 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2021-11-25 20:35:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 20:35:09,619 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 20:35:09,619 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:35:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 20:35:09,620 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 20:35:09,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:35:09,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 20:35:09,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 20:35:09,622 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2021-11-25 20:35:09,622 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2021-11-25 20:35:09,623 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2021-11-25 20:35:09,623 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2021-11-25 20:35:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:35:09,624 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-11-25 20:35:09,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2021-11-25 20:35:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 20:35:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 20:35:09,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:35:09,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:35:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 20:35:09,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 20:35:09,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 20:35:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 20:35:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 20:35:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 20:35:09,627 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 20:35:09,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 20:35:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-25 20:35:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-25 20:35:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 20:35:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 20:35:09,628 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2021-11-25 20:35:09,628 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2021-11-25 20:35:09,629 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2021-11-25 20:35:09,629 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2021-11-25 20:35:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:35:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 20:35:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 20:35:09,630 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 20:35:09,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 20:35:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:35:09,631 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2021-11-25 20:35:09,631 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2021-11-25 20:35:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 20:35:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 20:35:09,632 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 20:35:09,632 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 20:35:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:35:09,633 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:35:09,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:35:09,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 20:35:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 20:35:09,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 20:35:09,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 20:35:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 20:35:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 20:35:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 20:35:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 20:35:09,636 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 20:35:09,636 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 20:35:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 20:35:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 20:35:09,637 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-25 20:35:09,637 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-25 20:35:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:35:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:35:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2021-11-25 20:35:09,638 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2021-11-25 20:35:09,638 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2021-11-25 20:35:09,639 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2021-11-25 20:35:09,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:35:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:35:09,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 20:35:09,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 20:35:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-25 20:35:09,644 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-25 20:35:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-11-25 20:35:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2021-11-25 20:35:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 20:35:09,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 20:35:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 20:35:09,652 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 20:35:09,652 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-25 20:35:09,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-25 20:35:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 20:35:09,653 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 20:35:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-25 20:35:09,653 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-25 20:35:09,653 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2021-11-25 20:35:09,653 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2021-11-25 20:35:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-11-25 20:35:09,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2021-11-25 20:35:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 20:35:09,654 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 20:35:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:35:09,654 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 20:35:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 20:35:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:35:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-25 20:35:09,655 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-25 20:35:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:35:09,655 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 20:35:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 20:35:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 20:35:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 20:35:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2021-11-25 20:35:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2021-11-25 20:35:09,656 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 20:35:09,656 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 20:35:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2021-11-25 20:35:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2021-11-25 20:35:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-11-25 20:35:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2021-11-25 20:35:09,657 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2021-11-25 20:35:09,657 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2021-11-25 20:35:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2021-11-25 20:35:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2021-11-25 20:35:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:35:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 20:35:09,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 20:35:09,658 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2021-11-25 20:35:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2021-11-25 20:35:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2021-11-25 20:35:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2021-11-25 20:35:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 20:35:09,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 20:35:09,659 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-11-25 20:35:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-11-25 20:35:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 20:35:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 20:35:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2021-11-25 20:35:09,660 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2021-11-25 20:35:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:35:09,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 20:35:09,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 20:35:10,631 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:35:10,637 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:35:11,253 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 20:35:14,077 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 20:35:14,286 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:35:15,721 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:35:15,722 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 20:35:15,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:35:15 BoogieIcfgContainer [2021-11-25 20:35:15,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:35:15,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:35:15,729 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:35:15,733 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:35:15,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:35:04" (1/3) ... [2021-11-25 20:35:15,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309d8e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:35:15, skipping insertion in model container [2021-11-25 20:35:15,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:35:08" (2/3) ... [2021-11-25 20:35:15,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@309d8e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:35:15, skipping insertion in model container [2021-11-25 20:35:15,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:35:15" (3/3) ... [2021-11-25 20:35:15,736 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2021-11-25 20:35:15,742 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:35:15,742 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:35:15,809 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:35:15,820 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:35:15,821 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 20:35:15,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 1060 states, 590 states have (on average 1.2915254237288136) internal successors, (762), 611 states have internal predecessors, (762), 391 states have call successors, (391), 79 states have call predecessors, (391), 78 states have return successors, (385), 379 states have call predecessors, (385), 385 states have call successors, (385) [2021-11-25 20:35:15,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-25 20:35:15,918 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:15,919 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 3, 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] [2021-11-25 20:35:15,920 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:35:15,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:15,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1639331503, now seen corresponding path program 1 times [2021-11-25 20:35:15,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:15,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361546044] [2021-11-25 20:35:15,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:15,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:16,846 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-25 20:35:16,847 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:16,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361546044] [2021-11-25 20:35:16,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361546044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:16,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:16,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:16,851 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40067902] [2021-11-25 20:35:16,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:16,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:16,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:16,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:16,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:16,937 INFO L87 Difference]: Start difference. First operand has 1060 states, 590 states have (on average 1.2915254237288136) internal successors, (762), 611 states have internal predecessors, (762), 391 states have call successors, (391), 79 states have call predecessors, (391), 78 states have return successors, (385), 379 states have call predecessors, (385), 385 states have call successors, (385) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:35:19,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:19,853 INFO L93 Difference]: Finished difference Result 3020 states and 4414 transitions. [2021-11-25 20:35:19,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:19,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 169 [2021-11-25 20:35:19,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:19,900 INFO L225 Difference]: With dead ends: 3020 [2021-11-25 20:35:19,900 INFO L226 Difference]: Without dead ends: 1915 [2021-11-25 20:35:19,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:19,921 INFO L933 BasicCegarLoop]: 1647 mSDtfsCounter, 1346 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 2901 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:19,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1346 Valid, 2901 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-25 20:35:19,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2021-11-25 20:35:20,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1911. [2021-11-25 20:35:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1081 states have (on average 1.2756706753006475) internal successors, (1379), 1120 states have internal predecessors, (1379), 681 states have call successors, (681), 149 states have call predecessors, (681), 148 states have return successors, (682), 666 states have call predecessors, (682), 681 states have call successors, (682) [2021-11-25 20:35:20,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2742 transitions. [2021-11-25 20:35:20,235 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2742 transitions. Word has length 169 [2021-11-25 20:35:20,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:20,243 INFO L470 AbstractCegarLoop]: Abstraction has 1911 states and 2742 transitions. [2021-11-25 20:35:20,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:35:20,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2742 transitions. [2021-11-25 20:35:20,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-11-25 20:35:20,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:20,265 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 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] [2021-11-25 20:35:20,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:35:20,266 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:35:20,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:20,267 INFO L85 PathProgramCache]: Analyzing trace with hash 2079914326, now seen corresponding path program 1 times [2021-11-25 20:35:20,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:20,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758913250] [2021-11-25 20:35:20,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:20,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:20,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:20,614 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2021-11-25 20:35:20,615 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:20,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758913250] [2021-11-25 20:35:20,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758913250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:20,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:20,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:20,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994500761] [2021-11-25 20:35:20,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:20,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:20,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:20,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:20,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:20,621 INFO L87 Difference]: Start difference. First operand 1911 states and 2742 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:35:23,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:23,344 INFO L93 Difference]: Finished difference Result 5646 states and 8106 transitions. [2021-11-25 20:35:23,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:23,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 159 [2021-11-25 20:35:23,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:23,388 INFO L225 Difference]: With dead ends: 5646 [2021-11-25 20:35:23,389 INFO L226 Difference]: Without dead ends: 3754 [2021-11-25 20:35:23,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:23,409 INFO L933 BasicCegarLoop]: 1590 mSDtfsCounter, 1419 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1419 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:23,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1419 Valid, 2795 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 20:35:23,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2021-11-25 20:35:23,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 3748. [2021-11-25 20:35:23,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3748 states, 2124 states have (on average 1.2777777777777777) internal successors, (2714), 2207 states have internal predecessors, (2714), 1330 states have call successors, (1330), 298 states have call predecessors, (1330), 293 states have return successors, (1337), 1292 states have call predecessors, (1337), 1330 states have call successors, (1337) [2021-11-25 20:35:23,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3748 states to 3748 states and 5381 transitions. [2021-11-25 20:35:23,760 INFO L78 Accepts]: Start accepts. Automaton has 3748 states and 5381 transitions. Word has length 159 [2021-11-25 20:35:23,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:23,762 INFO L470 AbstractCegarLoop]: Abstraction has 3748 states and 5381 transitions. [2021-11-25 20:35:23,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:35:23,763 INFO L276 IsEmpty]: Start isEmpty. Operand 3748 states and 5381 transitions. [2021-11-25 20:35:23,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-25 20:35:23,770 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:23,770 INFO L514 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 3, 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] [2021-11-25 20:35:23,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:35:23,771 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:35:23,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:23,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1118730716, now seen corresponding path program 1 times [2021-11-25 20:35:23,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:23,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312173709] [2021-11-25 20:35:23,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:23,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:24,129 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2021-11-25 20:35:24,130 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:24,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312173709] [2021-11-25 20:35:24,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312173709] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:24,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:24,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 20:35:24,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451046395] [2021-11-25 20:35:24,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:24,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 20:35:24,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:24,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 20:35:24,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:35:24,135 INFO L87 Difference]: Start difference. First operand 3748 states and 5381 transitions. Second operand has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:35:31,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:31,497 INFO L93 Difference]: Finished difference Result 12179 states and 17368 transitions. [2021-11-25 20:35:31,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:35:31,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 168 [2021-11-25 20:35:31,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:31,602 INFO L225 Difference]: With dead ends: 12179 [2021-11-25 20:35:31,602 INFO L226 Difference]: Without dead ends: 8450 [2021-11-25 20:35:31,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:35:31,647 INFO L933 BasicCegarLoop]: 2150 mSDtfsCounter, 3724 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 1396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3798 SdHoareTripleChecker+Valid, 3901 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1396 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:31,651 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3798 Valid, 3901 Invalid, 3286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1396 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2021-11-25 20:35:31,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8450 states. [2021-11-25 20:35:32,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8450 to 8430. [2021-11-25 20:35:32,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8430 states, 4875 states have (on average 1.2726153846153847) internal successors, (6204), 5035 states have internal predecessors, (6204), 2859 states have call successors, (2859), 705 states have call predecessors, (2859), 695 states have return successors, (2866), 2792 states have call predecessors, (2866), 2859 states have call successors, (2866) [2021-11-25 20:35:32,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8430 states to 8430 states and 11929 transitions. [2021-11-25 20:35:32,510 INFO L78 Accepts]: Start accepts. Automaton has 8430 states and 11929 transitions. Word has length 168 [2021-11-25 20:35:32,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:32,511 INFO L470 AbstractCegarLoop]: Abstraction has 8430 states and 11929 transitions. [2021-11-25 20:35:32,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-25 20:35:32,513 INFO L276 IsEmpty]: Start isEmpty. Operand 8430 states and 11929 transitions. [2021-11-25 20:35:32,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-25 20:35:32,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:32,528 INFO L514 BasicCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:32,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:35:32,529 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:35:32,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:32,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1998747753, now seen corresponding path program 1 times [2021-11-25 20:35:32,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:32,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313246933] [2021-11-25 20:35:32,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:32,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:32,881 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 473 trivial. 0 not checked. [2021-11-25 20:35:32,882 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:32,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313246933] [2021-11-25 20:35:32,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313246933] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:32,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:32,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:32,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372730458] [2021-11-25 20:35:32,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:32,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:32,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:32,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:32,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:32,887 INFO L87 Difference]: Start difference. First operand 8430 states and 11929 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-25 20:35:34,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:34,686 INFO L93 Difference]: Finished difference Result 16829 states and 23818 transitions. [2021-11-25 20:35:34,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:34,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 241 [2021-11-25 20:35:34,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:34,775 INFO L225 Difference]: With dead ends: 16829 [2021-11-25 20:35:34,776 INFO L226 Difference]: Without dead ends: 8418 [2021-11-25 20:35:34,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:34,831 INFO L933 BasicCegarLoop]: 1229 mSDtfsCounter, 1434 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:34,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1434 Valid, 1229 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-25 20:35:34,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8418 states. [2021-11-25 20:35:35,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8418 to 8418. [2021-11-25 20:35:35,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8418 states, 4863 states have (on average 1.2634176434299815) internal successors, (6144), 5023 states have internal predecessors, (6144), 2859 states have call successors, (2859), 705 states have call predecessors, (2859), 695 states have return successors, (2866), 2792 states have call predecessors, (2866), 2859 states have call successors, (2866) [2021-11-25 20:35:35,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8418 states to 8418 states and 11869 transitions. [2021-11-25 20:35:35,583 INFO L78 Accepts]: Start accepts. Automaton has 8418 states and 11869 transitions. Word has length 241 [2021-11-25 20:35:35,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:35,585 INFO L470 AbstractCegarLoop]: Abstraction has 8418 states and 11869 transitions. [2021-11-25 20:35:35,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-25 20:35:35,586 INFO L276 IsEmpty]: Start isEmpty. Operand 8418 states and 11869 transitions. [2021-11-25 20:35:35,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-25 20:35:35,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:35,599 INFO L514 BasicCegarLoop]: trace histogram [15, 9, 9, 9, 9, 9, 9, 5, 5, 3, 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] [2021-11-25 20:35:35,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:35:35,600 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:35:35,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:35,602 INFO L85 PathProgramCache]: Analyzing trace with hash 426927624, now seen corresponding path program 1 times [2021-11-25 20:35:35,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:35,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742693512] [2021-11-25 20:35:35,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:35,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:35,844 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 464 trivial. 0 not checked. [2021-11-25 20:35:35,844 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:35,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742693512] [2021-11-25 20:35:35,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742693512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:35,845 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:35,845 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:35,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978775116] [2021-11-25 20:35:35,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:35,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:35,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:35,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:35,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:35,848 INFO L87 Difference]: Start difference. First operand 8418 states and 11869 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, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-25 20:35:38,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:38,936 INFO L93 Difference]: Finished difference Result 19136 states and 26981 transitions. [2021-11-25 20:35:38,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:38,937 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, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 243 [2021-11-25 20:35:38,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:39,040 INFO L225 Difference]: With dead ends: 19136 [2021-11-25 20:35:39,040 INFO L226 Difference]: Without dead ends: 10737 [2021-11-25 20:35:39,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:39,093 INFO L933 BasicCegarLoop]: 1997 mSDtfsCounter, 933 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:39,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 3189 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 20:35:39,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10737 states. [2021-11-25 20:35:39,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10737 to 10731. [2021-11-25 20:35:39,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10731 states, 6232 states have (on average 1.261553273427471) internal successors, (7862), 6430 states have internal predecessors, (7862), 3605 states have call successors, (3605), 903 states have call predecessors, (3605), 893 states have return successors, (3612), 3526 states have call predecessors, (3612), 3605 states have call successors, (3612) [2021-11-25 20:35:39,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10731 states to 10731 states and 15079 transitions. [2021-11-25 20:35:39,763 INFO L78 Accepts]: Start accepts. Automaton has 10731 states and 15079 transitions. Word has length 243 [2021-11-25 20:35:39,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:39,763 INFO L470 AbstractCegarLoop]: Abstraction has 10731 states and 15079 transitions. [2021-11-25 20:35:39,764 INFO L471 AbstractCegarLoop]: INTERPOLANT 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, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-25 20:35:39,764 INFO L276 IsEmpty]: Start isEmpty. Operand 10731 states and 15079 transitions. [2021-11-25 20:35:39,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-25 20:35:39,778 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:39,779 INFO L514 BasicCegarLoop]: trace histogram [12, 10, 10, 9, 9, 9, 9, 9, 9, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:39,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:35:39,779 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:35:39,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:39,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2093966798, now seen corresponding path program 1 times [2021-11-25 20:35:39,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:39,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644098944] [2021-11-25 20:35:39,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:39,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:40,015 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 592 trivial. 0 not checked. [2021-11-25 20:35:40,016 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:40,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644098944] [2021-11-25 20:35:40,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644098944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:40,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:40,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:40,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624222200] [2021-11-25 20:35:40,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:40,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:40,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:40,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:40,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:40,019 INFO L87 Difference]: Start difference. First operand 10731 states and 15079 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-25 20:35:43,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:43,022 INFO L93 Difference]: Finished difference Result 28905 states and 40390 transitions. [2021-11-25 20:35:43,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:43,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 321 [2021-11-25 20:35:43,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:43,135 INFO L225 Difference]: With dead ends: 28905 [2021-11-25 20:35:43,135 INFO L226 Difference]: Without dead ends: 18193 [2021-11-25 20:35:43,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:43,196 INFO L933 BasicCegarLoop]: 1675 mSDtfsCounter, 1324 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:43,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1324 Valid, 2868 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 20:35:43,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18193 states. [2021-11-25 20:35:44,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18193 to 18167. [2021-11-25 20:35:44,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18167 states, 10694 states have (on average 1.2617355526463438) internal successors, (13493), 11048 states have internal predecessors, (13493), 5895 states have call successors, (5895), 1603 states have call predecessors, (5895), 1577 states have return successors, (5910), 5728 states have call predecessors, (5910), 5895 states have call successors, (5910) [2021-11-25 20:35:44,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18167 states to 18167 states and 25298 transitions. [2021-11-25 20:35:44,769 INFO L78 Accepts]: Start accepts. Automaton has 18167 states and 25298 transitions. Word has length 321 [2021-11-25 20:35:44,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:44,770 INFO L470 AbstractCegarLoop]: Abstraction has 18167 states and 25298 transitions. [2021-11-25 20:35:44,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-25 20:35:44,771 INFO L276 IsEmpty]: Start isEmpty. Operand 18167 states and 25298 transitions. [2021-11-25 20:35:44,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-25 20:35:44,794 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:44,794 INFO L514 BasicCegarLoop]: trace histogram [17, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:44,794 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:35:44,795 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:35:44,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:44,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1842144646, now seen corresponding path program 1 times [2021-11-25 20:35:44,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:44,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293244105] [2021-11-25 20:35:44,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:44,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:45,355 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 616 trivial. 0 not checked. [2021-11-25 20:35:45,356 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:45,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293244105] [2021-11-25 20:35:45,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293244105] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:45,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:45,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:45,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96456982] [2021-11-25 20:35:45,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:45,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:45,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:45,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:45,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:45,360 INFO L87 Difference]: Start difference. First operand 18167 states and 25298 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-25 20:35:48,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:48,547 INFO L93 Difference]: Finished difference Result 40720 states and 56748 transitions. [2021-11-25 20:35:48,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:48,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 305 [2021-11-25 20:35:48,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:48,670 INFO L225 Difference]: With dead ends: 40720 [2021-11-25 20:35:48,670 INFO L226 Difference]: Without dead ends: 22572 [2021-11-25 20:35:48,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:48,736 INFO L933 BasicCegarLoop]: 2035 mSDtfsCounter, 1205 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 3049 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:48,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1205 Valid, 3049 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-25 20:35:48,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22572 states. [2021-11-25 20:35:50,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22572 to 22562. [2021-11-25 20:35:50,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22562 states, 13316 states have (on average 1.2601381796335236) internal successors, (16780), 13745 states have internal predecessors, (16780), 7289 states have call successors, (7289), 1982 states have call predecessors, (7289), 1956 states have return successors, (7304), 7094 states have call predecessors, (7304), 7289 states have call successors, (7304) [2021-11-25 20:35:50,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22562 states to 22562 states and 31373 transitions. [2021-11-25 20:35:50,600 INFO L78 Accepts]: Start accepts. Automaton has 22562 states and 31373 transitions. Word has length 305 [2021-11-25 20:35:50,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:50,606 INFO L470 AbstractCegarLoop]: Abstraction has 22562 states and 31373 transitions. [2021-11-25 20:35:50,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2021-11-25 20:35:50,606 INFO L276 IsEmpty]: Start isEmpty. Operand 22562 states and 31373 transitions. [2021-11-25 20:35:50,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-11-25 20:35:50,630 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:50,631 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 10, 9, 9, 9, 9, 9, 9, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:50,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 20:35:50,631 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:35:50,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:50,633 INFO L85 PathProgramCache]: Analyzing trace with hash 582767453, now seen corresponding path program 1 times [2021-11-25 20:35:50,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:50,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326219099] [2021-11-25 20:35:50,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:50,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 615 trivial. 0 not checked. [2021-11-25 20:35:51,029 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:51,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326219099] [2021-11-25 20:35:51,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326219099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:51,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:51,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:51,030 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587732770] [2021-11-25 20:35:51,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:51,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:51,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:51,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:51,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:51,032 INFO L87 Difference]: Start difference. First operand 22562 states and 31373 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 20:35:54,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:35:54,557 INFO L93 Difference]: Finished difference Result 67588 states and 93963 transitions. [2021-11-25 20:35:54,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:35:54,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 339 [2021-11-25 20:35:54,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:35:54,848 INFO L225 Difference]: With dead ends: 67588 [2021-11-25 20:35:54,848 INFO L226 Difference]: Without dead ends: 45045 [2021-11-25 20:35:54,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:54,948 INFO L933 BasicCegarLoop]: 1912 mSDtfsCounter, 1421 mSDsluCounter, 1456 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 3142 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:35:54,949 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1421 Valid, 3142 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-25 20:35:55,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45045 states. [2021-11-25 20:35:57,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45045 to 44963. [2021-11-25 20:35:57,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44963 states, 26521 states have (on average 1.258210474718148) internal successors, (33369), 27439 states have internal predecessors, (33369), 14529 states have call successors, (14529), 3964 states have call predecessors, (14529), 3912 states have return successors, (14559), 14079 states have call predecessors, (14559), 14529 states have call successors, (14559) [2021-11-25 20:35:58,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44963 states to 44963 states and 62457 transitions. [2021-11-25 20:35:58,432 INFO L78 Accepts]: Start accepts. Automaton has 44963 states and 62457 transitions. Word has length 339 [2021-11-25 20:35:58,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:35:58,433 INFO L470 AbstractCegarLoop]: Abstraction has 44963 states and 62457 transitions. [2021-11-25 20:35:58,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-25 20:35:58,434 INFO L276 IsEmpty]: Start isEmpty. Operand 44963 states and 62457 transitions. [2021-11-25 20:35:58,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2021-11-25 20:35:58,494 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:35:58,494 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 10, 9, 9, 9, 9, 9, 9, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:35:58,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:35:58,495 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:35:58,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:35:58,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1170732109, now seen corresponding path program 1 times [2021-11-25 20:35:58,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:35:58,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972901080] [2021-11-25 20:35:58,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:35:58,497 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:35:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:35:58,791 INFO L134 CoverageAnalysis]: Checked inductivity of 656 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 650 trivial. 0 not checked. [2021-11-25 20:35:58,792 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:35:58,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972901080] [2021-11-25 20:35:58,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972901080] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:35:58,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:35:58,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:35:58,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526911733] [2021-11-25 20:35:58,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:35:58,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:35:58,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:35:58,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:35:58,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:35:58,797 INFO L87 Difference]: Start difference. First operand 44963 states and 62457 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-25 20:36:02,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:02,356 INFO L93 Difference]: Finished difference Result 90481 states and 125310 transitions. [2021-11-25 20:36:02,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:36:02,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 354 [2021-11-25 20:36:02,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:02,827 INFO L225 Difference]: With dead ends: 90481 [2021-11-25 20:36:02,827 INFO L226 Difference]: Without dead ends: 45537 [2021-11-25 20:36:02,991 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:36:02,994 INFO L933 BasicCegarLoop]: 1228 mSDtfsCounter, 81 mSDsluCounter, 1420 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 2427 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:02,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 2427 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-25 20:36:03,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45537 states. [2021-11-25 20:36:05,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45537 to 45537. [2021-11-25 20:36:05,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45537 states, 26870 states have (on average 1.255042798660216) internal successors, (33723), 27788 states have internal predecessors, (33723), 14562 states have call successors, (14562), 4156 states have call predecessors, (14562), 4104 states have return successors, (14592), 14112 states have call predecessors, (14592), 14562 states have call successors, (14592) [2021-11-25 20:36:05,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45537 states to 45537 states and 62877 transitions. [2021-11-25 20:36:05,803 INFO L78 Accepts]: Start accepts. Automaton has 45537 states and 62877 transitions. Word has length 354 [2021-11-25 20:36:05,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:05,804 INFO L470 AbstractCegarLoop]: Abstraction has 45537 states and 62877 transitions. [2021-11-25 20:36:05,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2021-11-25 20:36:05,804 INFO L276 IsEmpty]: Start isEmpty. Operand 45537 states and 62877 transitions. [2021-11-25 20:36:05,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2021-11-25 20:36:05,842 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:05,843 INFO L514 BasicCegarLoop]: trace histogram [21, 11, 11, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:05,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-25 20:36:05,843 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:36:05,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:05,844 INFO L85 PathProgramCache]: Analyzing trace with hash 200437238, now seen corresponding path program 1 times [2021-11-25 20:36:05,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:05,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125882742] [2021-11-25 20:36:05,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:05,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:06,225 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2021-11-25 20:36:06,225 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:06,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125882742] [2021-11-25 20:36:06,226 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125882742] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:06,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:06,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:36:06,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195905507] [2021-11-25 20:36:06,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:06,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:36:06,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:06,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:36:06,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:36:06,229 INFO L87 Difference]: Start difference. First operand 45537 states and 62877 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-25 20:36:10,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:10,566 INFO L93 Difference]: Finished difference Result 98263 states and 135711 transitions. [2021-11-25 20:36:10,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:36:10,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 364 [2021-11-25 20:36:10,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:10,804 INFO L225 Difference]: With dead ends: 98263 [2021-11-25 20:36:10,805 INFO L226 Difference]: Without dead ends: 52791 [2021-11-25 20:36:11,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:36:11,167 INFO L933 BasicCegarLoop]: 1908 mSDtfsCounter, 942 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:11,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [942 Valid, 3100 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-25 20:36:11,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52791 states. [2021-11-25 20:36:13,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52791 to 52773. [2021-11-25 20:36:13,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52773 states, 31320 states have (on average 1.2556513409961685) internal successors, (39327), 32374 states have internal predecessors, (39327), 16674 states have call successors, (16674), 4830 states have call predecessors, (16674), 4778 states have return successors, (16704), 16164 states have call predecessors, (16704), 16674 states have call successors, (16704) [2021-11-25 20:36:13,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52773 states to 52773 states and 72705 transitions. [2021-11-25 20:36:13,689 INFO L78 Accepts]: Start accepts. Automaton has 52773 states and 72705 transitions. Word has length 364 [2021-11-25 20:36:13,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:13,690 INFO L470 AbstractCegarLoop]: Abstraction has 52773 states and 72705 transitions. [2021-11-25 20:36:13,690 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-25 20:36:13,691 INFO L276 IsEmpty]: Start isEmpty. Operand 52773 states and 72705 transitions. [2021-11-25 20:36:13,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-11-25 20:36:13,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:13,734 INFO L514 BasicCegarLoop]: trace histogram [21, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:13,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-25 20:36:13,735 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:36:13,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:13,736 INFO L85 PathProgramCache]: Analyzing trace with hash -185251156, now seen corresponding path program 1 times [2021-11-25 20:36:13,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:13,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050702255] [2021-11-25 20:36:13,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:13,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:14,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:14,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1009 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1009 trivial. 0 not checked. [2021-11-25 20:36:14,903 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:14,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050702255] [2021-11-25 20:36:14,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050702255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:14,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:14,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:36:14,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263953284] [2021-11-25 20:36:14,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:14,905 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:36:14,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:14,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:36:14,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:36:14,907 INFO L87 Difference]: Start difference. First operand 52773 states and 72705 transitions. Second operand has 5 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-25 20:36:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:19,954 INFO L93 Difference]: Finished difference Result 104939 states and 145471 transitions. [2021-11-25 20:36:19,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:36:19,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 377 [2021-11-25 20:36:19,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:19,965 INFO L225 Difference]: With dead ends: 104939 [2021-11-25 20:36:19,965 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 20:36:20,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-25 20:36:20,276 INFO L933 BasicCegarLoop]: 1221 mSDtfsCounter, 6 mSDsluCounter, 4353 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4879 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:20,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 4879 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-25 20:36:20,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 20:36:20,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 20:36:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 20:36:20,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 20:36:20,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 377 [2021-11-25 20:36:20,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:20,301 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 20:36:20,301 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2021-11-25 20:36:20,301 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 20:36:20,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 20:36:20,304 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 20:36:20,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-25 20:36:20,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.