./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-atheros-alx-alx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0ed43de24ffaa93b1a37c00c78c0cdaa1e1005aa52f2fbac965e933337484318 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:42:15,625 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:42:15,629 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:42:15,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:42:15,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:42:15,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:42:15,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:42:15,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:42:15,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:42:15,713 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:42:15,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:42:15,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:42:15,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:42:15,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:42:15,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:42:15,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:42:15,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:42:15,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:42:15,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:42:15,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:42:15,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:42:15,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:42:15,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:42:15,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:42:15,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:42:15,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:42:15,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:42:15,763 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:42:15,763 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:42:15,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:42:15,765 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:42:15,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:42:15,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:42:15,770 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:42:15,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:42:15,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:42:15,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:42:15,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:42:15,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:42:15,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:42:15,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:42:15,776 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:42:15,829 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:42:15,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:42:15,830 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:42:15,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:42:15,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:42:15,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:42:15,832 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:42:15,833 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:42:15,833 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:42:15,833 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:42:15,834 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:42:15,835 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:42:15,835 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:42:15,835 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:42:15,835 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:42:15,836 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:42:15,836 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:42:15,836 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:42:15,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:42:15,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:42:15,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:42:15,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:42:15,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:42:15,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:42:15,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:42:15,839 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:42:15,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:42:15,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:42:15,841 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:42:15,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:42:15,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:42:15,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:42:15,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:42:15,842 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:42:15,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:42:15,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:42:15,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:42:15,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:42:15,844 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_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ed43de24ffaa93b1a37c00c78c0cdaa1e1005aa52f2fbac965e933337484318 [2021-11-23 02:42:16,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:42:16,160 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:42:16,163 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:42:16,164 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:42:16,165 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:42:16,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-23 02:42:16,239 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/data/48ac20cca/d64d5cce66bc4e4db69848239459c6f5/FLAGc213d4079 [2021-11-23 02:42:17,306 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:42:17,308 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-23 02:42:17,415 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/data/48ac20cca/d64d5cce66bc4e4db69848239459c6f5/FLAGc213d4079 [2021-11-23 02:42:17,596 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/data/48ac20cca/d64d5cce66bc4e4db69848239459c6f5 [2021-11-23 02:42:17,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:42:17,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:42:17,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:42:17,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:42:17,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:42:17,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:42:17" (1/1) ... [2021-11-23 02:42:17,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22823a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:17, skipping insertion in model container [2021-11-23 02:42:17,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:42:17" (1/1) ... [2021-11-23 02:42:17,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:42:17,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:42:22,861 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_c8ddd7ca-7174-4a2a-8136-7f181b487e77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[458925,458938] [2021-11-23 02:42:22,864 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_c8ddd7ca-7174-4a2a-8136-7f181b487e77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[459070,459083] [2021-11-23 02:42:22,891 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:42:23,028 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:42:23,590 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_c8ddd7ca-7174-4a2a-8136-7f181b487e77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[458925,458938] [2021-11-23 02:42:23,591 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_c8ddd7ca-7174-4a2a-8136-7f181b487e77/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i[459070,459083] [2021-11-23 02:42:23,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:42:24,025 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:42:24,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24 WrapperNode [2021-11-23 02:42:24,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:42:24,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:42:24,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:42:24,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:42:24,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:24,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:24,628 INFO L137 Inliner]: procedures = 667, calls = 4451, calls flagged for inlining = 327, calls inlined = 292, statements flattened = 8509 [2021-11-23 02:42:24,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:42:24,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:42:24,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:42:24,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:42:24,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:24,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:24,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:24,721 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:24,918 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:24,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:25,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:25,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:42:25,210 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:42:25,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:42:25,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:42:25,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:25,237 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:42:25,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:42:25,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:42:25,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8ddd7ca-7174-4a2a-8136-7f181b487e77/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:42:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2021-11-23 02:42:25,404 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2021-11-23 02:42:25,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:42:25,404 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:42:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2021-11-23 02:42:25,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2021-11-23 02:42:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:42:25,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:42:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2021-11-23 02:42:25,405 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2021-11-23 02:42:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2021-11-23 02:42:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2021-11-23 02:42:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2021-11-23 02:42:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2021-11-23 02:42:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2021-11-23 02:42:25,406 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2021-11-23 02:42:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2021-11-23 02:42:25,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2021-11-23 02:42:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-23 02:42:25,407 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-23 02:42:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2021-11-23 02:42:25,407 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2021-11-23 02:42:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 02:42:25,408 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 02:42:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 02:42:25,408 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 02:42:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_resume [2021-11-23 02:42:25,408 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_resume [2021-11-23 02:42:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2021-11-23 02:42:25,409 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2021-11-23 02:42:25,409 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2021-11-23 02:42:25,409 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2021-11-23 02:42:25,409 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-23 02:42:25,409 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-23 02:42:25,409 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2021-11-23 02:42:25,410 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2021-11-23 02:42:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2021-11-23 02:42:25,410 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2021-11-23 02:42:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 02:42:25,410 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 02:42:25,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:42:25,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:42:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 02:42:25,411 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 02:42:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-23 02:42:25,411 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-23 02:42:25,411 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2021-11-23 02:42:25,412 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2021-11-23 02:42:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure alx_remove [2021-11-23 02:42:25,412 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_remove [2021-11-23 02:42:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:42:25,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:42:25,412 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2021-11-23 02:42:25,413 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2021-11-23 02:42:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-23 02:42:25,413 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-23 02:42:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:42:25,413 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-23 02:42:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-23 02:42:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2021-11-23 02:42:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2021-11-23 02:42:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-23 02:42:25,440 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-23 02:42:25,440 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-23 02:42:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-23 02:42:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2021-11-23 02:42:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2021-11-23 02:42:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-11-23 02:42:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2021-11-23 02:42:25,441 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2021-11-23 02:42:25,441 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 02:42:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 02:42:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 02:42:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 02:42:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_114 [2021-11-23 02:42:25,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_114 [2021-11-23 02:42:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:42:25,442 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2021-11-23 02:42:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2021-11-23 02:42:25,443 INFO L130 BoogieDeclarations]: Found specification of procedure alx_stop [2021-11-23 02:42:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_stop [2021-11-23 02:42:25,443 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 02:42:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 02:42:25,443 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2021-11-23 02:42:25,443 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2021-11-23 02:42:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-23 02:42:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-23 02:42:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:42:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2021-11-23 02:42:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2021-11-23 02:42:25,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:42:25,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:42:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:42:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 02:42:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 02:42:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-23 02:42:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-23 02:42:25,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:42:25,445 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:42:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 02:42:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 02:42:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2021-11-23 02:42:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2021-11-23 02:42:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2021-11-23 02:42:25,446 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2021-11-23 02:42:25,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 02:42:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 02:42:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 02:42:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 02:42:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 02:42:25,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 02:42:25,447 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2021-11-23 02:42:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2021-11-23 02:42:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2021-11-23 02:42:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2021-11-23 02:42:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 02:42:25,448 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 02:42:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:42:25,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 02:42:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 02:42:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-23 02:42:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-23 02:42:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-23 02:42:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-23 02:42:25,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-23 02:42:25,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-23 02:42:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2021-11-23 02:42:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2021-11-23 02:42:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-23 02:42:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-23 02:42:25,450 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2021-11-23 02:42:25,450 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2021-11-23 02:42:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:42:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-23 02:42:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-23 02:42:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:42:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:42:25,451 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:42:25,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:42:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:42:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:42:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2021-11-23 02:42:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2021-11-23 02:42:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2021-11-23 02:42:25,452 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2021-11-23 02:42:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2021-11-23 02:42:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2021-11-23 02:42:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:42:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:42:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:42:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:42:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:42:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:42:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-23 02:42:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-23 02:42:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2021-11-23 02:42:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2021-11-23 02:42:25,454 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2021-11-23 02:42:25,454 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2021-11-23 02:42:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2021-11-23 02:42:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2021-11-23 02:42:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2021-11-23 02:42:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2021-11-23 02:42:25,455 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2021-11-23 02:42:25,455 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2021-11-23 02:42:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-23 02:42:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-23 02:42:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-23 02:42:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-23 02:42:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-23 02:42:25,456 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-23 02:42:25,456 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 02:42:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 02:42:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2021-11-23 02:42:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2021-11-23 02:42:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 02:42:25,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 02:42:25,457 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-23 02:42:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-23 02:42:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2021-11-23 02:42:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2021-11-23 02:42:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 02:42:25,458 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 02:42:25,458 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2021-11-23 02:42:25,459 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2021-11-23 02:42:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:42:25,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:42:25,459 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-23 02:42:25,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-23 02:42:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-11-23 02:42:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-11-23 02:42:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:42:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:42:25,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:42:25,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:42:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2021-11-23 02:42:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2021-11-23 02:42:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 02:42:25,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 02:42:25,461 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-23 02:42:25,462 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-23 02:42:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-23 02:42:25,462 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-23 02:42:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 02:42:25,462 INFO L130 BoogieDeclarations]: Found specification of procedure alx_open [2021-11-23 02:42:25,463 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_open [2021-11-23 02:42:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-23 02:42:25,463 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-23 02:42:25,463 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-23 02:42:25,463 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-23 02:42:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2021-11-23 02:42:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2021-11-23 02:42:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 02:42:25,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 02:42:25,464 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2021-11-23 02:42:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2021-11-23 02:42:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2021-11-23 02:42:25,465 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2021-11-23 02:42:25,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:42:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:42:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2021-11-23 02:42:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2021-11-23 02:42:25,466 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2021-11-23 02:42:25,466 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2021-11-23 02:42:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-23 02:42:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-23 02:42:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-23 02:42:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-23 02:42:25,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-23 02:42:25,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-23 02:42:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-23 02:42:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-23 02:42:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-23 02:42:25,468 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-23 02:42:25,468 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 02:42:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 02:42:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:42:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 02:42:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 02:42:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2021-11-23 02:42:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2021-11-23 02:42:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2021-11-23 02:42:25,470 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2021-11-23 02:42:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-23 02:42:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-23 02:42:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2021-11-23 02:42:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2021-11-23 02:42:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-23 02:42:25,471 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-23 02:42:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:42:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_lock_of_alx_priv [2021-11-23 02:42:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_lock_of_alx_priv [2021-11-23 02:42:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_105 [2021-11-23 02:42:25,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_105 [2021-11-23 02:42:25,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:42:25,473 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2021-11-23 02:42:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2021-11-23 02:42:25,473 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 02:42:25,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 02:42:25,473 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-23 02:42:25,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-23 02:42:25,474 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2021-11-23 02:42:25,474 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2021-11-23 02:42:25,474 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-23 02:42:25,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-23 02:42:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-23 02:42:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-23 02:42:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 02:42:25,475 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 02:42:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-23 02:42:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-23 02:42:25,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:42:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:42:25,476 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-23 02:42:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-23 02:42:25,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_lock_of_alx_priv [2021-11-23 02:42:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_lock_of_alx_priv [2021-11-23 02:42:25,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 02:42:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 02:42:25,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2021-11-23 02:42:25,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2021-11-23 02:42:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_85 [2021-11-23 02:42:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_85 [2021-11-23 02:42:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-23 02:42:25,478 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-23 02:42:25,494 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 02:42:25,495 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 02:42:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2021-11-23 02:42:25,495 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2021-11-23 02:42:25,495 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 02:42:25,495 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 02:42:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2021-11-23 02:42:25,496 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2021-11-23 02:42:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:42:25,496 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:42:25,496 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2021-11-23 02:42:25,496 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2021-11-23 02:42:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:42:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:42:25,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:42:25,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_86 [2021-11-23 02:42:25,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_86 [2021-11-23 02:42:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2021-11-23 02:42:25,498 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2021-11-23 02:42:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 02:42:25,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 02:42:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2021-11-23 02:42:25,498 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2021-11-23 02:42:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2021-11-23 02:42:25,499 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2021-11-23 02:42:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2021-11-23 02:42:25,499 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2021-11-23 02:42:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 02:42:25,500 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 02:42:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2021-11-23 02:42:25,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2021-11-23 02:42:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-23 02:42:25,500 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-23 02:42:25,500 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-23 02:42:25,501 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-23 02:42:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2021-11-23 02:42:25,501 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2021-11-23 02:42:25,501 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2021-11-23 02:42:25,501 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2021-11-23 02:42:25,502 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2021-11-23 02:42:25,502 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2021-11-23 02:42:25,502 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2021-11-23 02:42:25,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2021-11-23 02:42:25,502 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2021-11-23 02:42:25,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2021-11-23 02:42:25,503 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-23 02:42:25,503 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-23 02:42:25,503 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-23 02:42:25,503 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-23 02:42:25,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:42:25,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:42:25,504 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-23 02:42:25,504 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-23 02:42:25,504 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-23 02:42:25,504 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-23 02:42:25,504 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2021-11-23 02:42:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2021-11-23 02:42:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2021-11-23 02:42:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2021-11-23 02:42:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-23 02:42:25,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-23 02:42:25,505 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 02:42:25,506 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 02:42:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-23 02:42:25,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-23 02:42:25,506 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-23 02:42:25,506 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-23 02:42:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_113 [2021-11-23 02:42:25,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_113 [2021-11-23 02:42:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:42:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 02:42:25,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 02:42:25,507 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2021-11-23 02:42:25,508 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2021-11-23 02:42:25,508 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2021-11-23 02:42:25,508 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2021-11-23 02:42:26,734 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:42:26,744 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:42:27,066 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:42:38,096 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:42:38,360 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:42:40,669 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:42:40,670 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-23 02:42:40,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:40 BoogieIcfgContainer [2021-11-23 02:42:40,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:42:40,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:42:40,679 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:42:40,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:42:40,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:42:17" (1/3) ... [2021-11-23 02:42:40,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745e8ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:42:40, skipping insertion in model container [2021-11-23 02:42:40,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (2/3) ... [2021-11-23 02:42:40,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@745e8ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:42:40, skipping insertion in model container [2021-11-23 02:42:40,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:40" (3/3) ... [2021-11-23 02:42:40,686 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-23 02:42:40,692 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:42:40,693 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:42:40,759 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:42:40,766 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:42:40,767 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:42:40,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 2398 states, 1354 states have (on average 1.2636632200886262) internal successors, (1711), 1398 states have internal predecessors, (1711), 876 states have call successors, (876), 171 states have call predecessors, (876), 170 states have return successors, (867), 852 states have call predecessors, (867), 867 states have call successors, (867) [2021-11-23 02:42:40,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-11-23 02:42:40,879 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:42:40,880 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:42:40,881 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:42:40,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:42:40,887 INFO L85 PathProgramCache]: Analyzing trace with hash -739471683, now seen corresponding path program 1 times [2021-11-23 02:42:40,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:42:40,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015606281] [2021-11-23 02:42:40,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:42:40,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:42:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:42:41,914 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-11-23 02:42:41,914 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:42:41,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015606281] [2021-11-23 02:42:41,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015606281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:42:41,916 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:42:41,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:42:41,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034859078] [2021-11-23 02:42:41,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:42:41,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:42:41,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:42:41,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:42:41,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:42:41,964 INFO L87 Difference]: Start difference. First operand has 2398 states, 1354 states have (on average 1.2636632200886262) internal successors, (1711), 1398 states have internal predecessors, (1711), 876 states have call successors, (876), 171 states have call predecessors, (876), 170 states have return successors, (867), 852 states have call predecessors, (867), 867 states have call successors, (867) 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, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-23 02:42:47,860 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:42:48,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:42:48,231 INFO L93 Difference]: Finished difference Result 6710 states and 9734 transitions. [2021-11-23 02:42:48,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:42:48,234 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, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 203 [2021-11-23 02:42:48,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:42:48,305 INFO L225 Difference]: With dead ends: 6710 [2021-11-23 02:42:48,305 INFO L226 Difference]: Without dead ends: 4275 [2021-11-23 02:42:48,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:42:48,334 INFO L933 BasicCegarLoop]: 3688 mSDtfsCounter, 2815 mSDsluCounter, 3335 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2815 SdHoareTripleChecker+Valid, 6623 SdHoareTripleChecker+Invalid, 915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:42:48,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2815 Valid, 6623 Invalid, 915 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 895 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2021-11-23 02:42:48,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4275 states. [2021-11-23 02:42:48,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4275 to 4272. [2021-11-23 02:42:48,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4272 states, 2442 states have (on average 1.2502047502047502) internal successors, (3053), 2511 states have internal predecessors, (3053), 1511 states have call successors, (1511), 318 states have call predecessors, (1511), 318 states have return successors, (1511), 1490 states have call predecessors, (1511), 1511 states have call successors, (1511) [2021-11-23 02:42:49,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4272 states to 4272 states and 6075 transitions. [2021-11-23 02:42:49,026 INFO L78 Accepts]: Start accepts. Automaton has 4272 states and 6075 transitions. Word has length 203 [2021-11-23 02:42:49,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:42:49,030 INFO L470 AbstractCegarLoop]: Abstraction has 4272 states and 6075 transitions. [2021-11-23 02:42:49,031 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, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-23 02:42:49,033 INFO L276 IsEmpty]: Start isEmpty. Operand 4272 states and 6075 transitions. [2021-11-23 02:42:49,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2021-11-23 02:42:49,051 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:42:49,052 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:42:49,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:42:49,052 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:42:49,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:42:49,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1354804334, now seen corresponding path program 1 times [2021-11-23 02:42:49,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:42:49,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953635072] [2021-11-23 02:42:49,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:42:49,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:42:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:42:49,622 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-11-23 02:42:49,622 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:42:49,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953635072] [2021-11-23 02:42:49,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953635072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:42:49,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:42:49,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:42:49,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770145968] [2021-11-23 02:42:49,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:42:49,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:42:49,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:42:49,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:42:49,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:42:49,635 INFO L87 Difference]: Start difference. First operand 4272 states and 6075 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-23 02:42:52,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:42:56,320 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:42:56,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:42:56,813 INFO L93 Difference]: Finished difference Result 12130 states and 17217 transitions. [2021-11-23 02:42:56,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:42:56,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 204 [2021-11-23 02:42:56,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:42:56,895 INFO L225 Difference]: With dead ends: 12130 [2021-11-23 02:42:56,895 INFO L226 Difference]: Without dead ends: 7891 [2021-11-23 02:42:56,923 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:42:56,928 INFO L933 BasicCegarLoop]: 4457 mSDtfsCounter, 2833 mSDsluCounter, 3236 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 29 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2833 SdHoareTripleChecker+Valid, 7306 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2021-11-23 02:42:56,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2833 Valid, 7306 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1027 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2021-11-23 02:42:56,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7891 states. [2021-11-23 02:42:57,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7891 to 7882. [2021-11-23 02:42:57,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7882 states, 4481 states have (on average 1.2374469984378487) internal successors, (5545), 4614 states have internal predecessors, (5545), 2791 states have call successors, (2791), 609 states have call predecessors, (2791), 609 states have return successors, (2791), 2748 states have call predecessors, (2791), 2791 states have call successors, (2791) [2021-11-23 02:42:57,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7882 states to 7882 states and 11127 transitions. [2021-11-23 02:42:57,623 INFO L78 Accepts]: Start accepts. Automaton has 7882 states and 11127 transitions. Word has length 204 [2021-11-23 02:42:57,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:42:57,624 INFO L470 AbstractCegarLoop]: Abstraction has 7882 states and 11127 transitions. [2021-11-23 02:42:57,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-23 02:42:57,625 INFO L276 IsEmpty]: Start isEmpty. Operand 7882 states and 11127 transitions. [2021-11-23 02:42:57,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-11-23 02:42:57,635 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:42:57,636 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 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] [2021-11-23 02:42:57,636 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:42:57,636 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:42:57,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:42:57,638 INFO L85 PathProgramCache]: Analyzing trace with hash -424393102, now seen corresponding path program 1 times [2021-11-23 02:42:57,638 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:42:57,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888748201] [2021-11-23 02:42:57,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:42:57,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:42:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:42:58,083 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2021-11-23 02:42:58,084 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:42:58,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888748201] [2021-11-23 02:42:58,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888748201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:42:58,087 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:42:58,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:42:58,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053184732] [2021-11-23 02:42:58,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:42:58,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:42:58,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:42:58,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:42:58,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:42:58,091 INFO L87 Difference]: Start difference. First operand 7882 states and 11127 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-23 02:43:00,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:04,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:05,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:05,392 INFO L93 Difference]: Finished difference Result 22914 states and 32334 transitions. [2021-11-23 02:43:05,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:05,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 228 [2021-11-23 02:43:05,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:05,578 INFO L225 Difference]: With dead ends: 22914 [2021-11-23 02:43:05,579 INFO L226 Difference]: Without dead ends: 15065 [2021-11-23 02:43:05,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:05,648 INFO L933 BasicCegarLoop]: 4615 mSDtfsCounter, 2956 mSDsluCounter, 3286 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2956 SdHoareTripleChecker+Valid, 7498 SdHoareTripleChecker+Invalid, 1040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:05,649 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2956 Valid, 7498 Invalid, 1040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1025 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2021-11-23 02:43:05,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15065 states. [2021-11-23 02:43:06,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15065 to 15052. [2021-11-23 02:43:06,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15052 states, 8562 states have (on average 1.2347582340574632) internal successors, (10572), 8830 states have internal predecessors, (10572), 5316 states have call successors, (5316), 1173 states have call predecessors, (5316), 1173 states have return successors, (5316), 5225 states have call predecessors, (5316), 5316 states have call successors, (5316) [2021-11-23 02:43:06,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15052 states to 15052 states and 21204 transitions. [2021-11-23 02:43:06,829 INFO L78 Accepts]: Start accepts. Automaton has 15052 states and 21204 transitions. Word has length 228 [2021-11-23 02:43:06,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:06,831 INFO L470 AbstractCegarLoop]: Abstraction has 15052 states and 21204 transitions. [2021-11-23 02:43:06,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-23 02:43:06,831 INFO L276 IsEmpty]: Start isEmpty. Operand 15052 states and 21204 transitions. [2021-11-23 02:43:06,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-23 02:43:06,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:06,848 INFO L514 BasicCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:06,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:43:06,849 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:06,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:06,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1838116152, now seen corresponding path program 1 times [2021-11-23 02:43:06,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:06,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811790006] [2021-11-23 02:43:06,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:06,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:07,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1038 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2021-11-23 02:43:07,334 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:07,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811790006] [2021-11-23 02:43:07,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811790006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:07,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:07,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:43:07,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395411325] [2021-11-23 02:43:07,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:07,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:43:07,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:07,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:43:07,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:07,337 INFO L87 Difference]: Start difference. First operand 15052 states and 21204 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-23 02:43:09,358 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:14,152 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:14,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:14,602 INFO L93 Difference]: Finished difference Result 36662 states and 51541 transitions. [2021-11-23 02:43:14,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:14,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 243 [2021-11-23 02:43:14,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:14,748 INFO L225 Difference]: With dead ends: 36662 [2021-11-23 02:43:14,748 INFO L226 Difference]: Without dead ends: 21643 [2021-11-23 02:43:14,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:14,818 INFO L933 BasicCegarLoop]: 3586 mSDtfsCounter, 2729 mSDsluCounter, 3284 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2729 SdHoareTripleChecker+Valid, 6464 SdHoareTripleChecker+Invalid, 857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:14,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2729 Valid, 6464 Invalid, 857 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 852 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-23 02:43:14,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21643 states. [2021-11-23 02:43:16,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21643 to 21641. [2021-11-23 02:43:16,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21641 states, 12336 states have (on average 1.2311121919584955) internal successors, (15187), 12709 states have internal predecessors, (15187), 7591 states have call successors, (7591), 1713 states have call predecessors, (7591), 1713 states have return successors, (7591), 7470 states have call predecessors, (7591), 7591 states have call successors, (7591) [2021-11-23 02:43:16,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21641 states to 21641 states and 30369 transitions. [2021-11-23 02:43:16,324 INFO L78 Accepts]: Start accepts. Automaton has 21641 states and 30369 transitions. Word has length 243 [2021-11-23 02:43:16,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:16,325 INFO L470 AbstractCegarLoop]: Abstraction has 21641 states and 30369 transitions. [2021-11-23 02:43:16,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-23 02:43:16,325 INFO L276 IsEmpty]: Start isEmpty. Operand 21641 states and 30369 transitions. [2021-11-23 02:43:16,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-23 02:43:16,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:16,345 INFO L514 BasicCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 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] [2021-11-23 02:43:16,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:43:16,345 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:16,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:16,346 INFO L85 PathProgramCache]: Analyzing trace with hash 949656347, now seen corresponding path program 1 times [2021-11-23 02:43:16,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:16,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858640596] [2021-11-23 02:43:16,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:16,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:16,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1036 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1030 trivial. 0 not checked. [2021-11-23 02:43:16,811 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:16,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858640596] [2021-11-23 02:43:16,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858640596] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:16,812 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:16,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:43:16,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57574228] [2021-11-23 02:43:16,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:16,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:43:16,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:16,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:43:16,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:16,814 INFO L87 Difference]: Start difference. First operand 21641 states and 30369 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-23 02:43:19,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:22,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:22,825 INFO L93 Difference]: Finished difference Result 47642 states and 66571 transitions. [2021-11-23 02:43:22,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:22,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 243 [2021-11-23 02:43:22,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:23,003 INFO L225 Difference]: With dead ends: 47642 [2021-11-23 02:43:23,004 INFO L226 Difference]: Without dead ends: 26034 [2021-11-23 02:43:23,092 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 [2021-11-23 02:43:23,093 INFO L933 BasicCegarLoop]: 3510 mSDtfsCounter, 2380 mSDsluCounter, 3227 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2380 SdHoareTripleChecker+Valid, 6348 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:23,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2380 Valid, 6348 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 889 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2021-11-23 02:43:23,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26034 states. [2021-11-23 02:43:24,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26034 to 26025. [2021-11-23 02:43:24,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26025 states, 14812 states have (on average 1.2279233054280314) internal successors, (18188), 15293 states have internal predecessors, (18188), 9001 states have call successors, (9001), 2217 states have call predecessors, (9001), 2211 states have return successors, (9009), 8816 states have call predecessors, (9009), 9001 states have call successors, (9009) [2021-11-23 02:43:24,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26025 states to 26025 states and 36198 transitions. [2021-11-23 02:43:24,882 INFO L78 Accepts]: Start accepts. Automaton has 26025 states and 36198 transitions. Word has length 243 [2021-11-23 02:43:24,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:24,886 INFO L470 AbstractCegarLoop]: Abstraction has 26025 states and 36198 transitions. [2021-11-23 02:43:24,886 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2021-11-23 02:43:24,886 INFO L276 IsEmpty]: Start isEmpty. Operand 26025 states and 36198 transitions. [2021-11-23 02:43:24,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-11-23 02:43:24,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:24,897 INFO L514 BasicCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 4, 4, 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] [2021-11-23 02:43:24,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:43:24,898 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:24,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:24,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1270256167, now seen corresponding path program 1 times [2021-11-23 02:43:24,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:24,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761642365] [2021-11-23 02:43:24,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:24,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:25,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2021-11-23 02:43:25,240 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:25,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761642365] [2021-11-23 02:43:25,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761642365] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:25,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:25,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:43:25,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90726761] [2021-11-23 02:43:25,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:25,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:43:25,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:25,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:43:25,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:25,243 INFO L87 Difference]: Start difference. First operand 26025 states and 36198 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-23 02:43:29,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:30,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:32,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:35,038 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:35,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:35,817 INFO L93 Difference]: Finished difference Result 62775 states and 87353 transitions. [2021-11-23 02:43:35,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:35,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 250 [2021-11-23 02:43:35,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:36,033 INFO L225 Difference]: With dead ends: 62775 [2021-11-23 02:43:36,034 INFO L226 Difference]: Without dead ends: 36980 [2021-11-23 02:43:36,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:36,131 INFO L933 BasicCegarLoop]: 4179 mSDtfsCounter, 2740 mSDsluCounter, 3260 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 15 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2740 SdHoareTripleChecker+Valid, 7040 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:36,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2740 Valid, 7040 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1025 Invalid, 3 Unknown, 0 Unchecked, 9.4s Time] [2021-11-23 02:43:36,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36980 states. [2021-11-23 02:43:38,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36980 to 36970. [2021-11-23 02:43:38,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36970 states, 21077 states have (on average 1.2256013664183707) internal successors, (25832), 21748 states have internal predecessors, (25832), 12734 states have call successors, (12734), 3166 states have call predecessors, (12734), 3158 states have return successors, (12744), 12476 states have call predecessors, (12744), 12734 states have call successors, (12744) [2021-11-23 02:43:38,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36970 states to 36970 states and 51310 transitions. [2021-11-23 02:43:38,709 INFO L78 Accepts]: Start accepts. Automaton has 36970 states and 51310 transitions. Word has length 250 [2021-11-23 02:43:38,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:38,710 INFO L470 AbstractCegarLoop]: Abstraction has 36970 states and 51310 transitions. [2021-11-23 02:43:38,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-23 02:43:38,710 INFO L276 IsEmpty]: Start isEmpty. Operand 36970 states and 51310 transitions. [2021-11-23 02:43:38,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2021-11-23 02:43:38,729 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:38,730 INFO L514 BasicCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:38,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:43:38,730 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:38,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:38,731 INFO L85 PathProgramCache]: Analyzing trace with hash -966023022, now seen corresponding path program 1 times [2021-11-23 02:43:38,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:38,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509348209] [2021-11-23 02:43:38,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:38,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:39,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1240 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1219 trivial. 0 not checked. [2021-11-23 02:43:39,313 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:39,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509348209] [2021-11-23 02:43:39,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509348209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:39,314 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:39,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:43:39,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167615183] [2021-11-23 02:43:39,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:39,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:43:39,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:39,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:43:39,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:39,319 INFO L87 Difference]: Start difference. First operand 36970 states and 51310 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-23 02:43:43,350 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:45,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:47,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:47,263 INFO L93 Difference]: Finished difference Result 90530 states and 125765 transitions. [2021-11-23 02:43:47,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:47,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 282 [2021-11-23 02:43:47,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:47,707 INFO L225 Difference]: With dead ends: 90530 [2021-11-23 02:43:47,707 INFO L226 Difference]: Without dead ends: 53790 [2021-11-23 02:43:47,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:47,829 INFO L933 BasicCegarLoop]: 5492 mSDtfsCounter, 2961 mSDsluCounter, 3284 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2961 SdHoareTripleChecker+Valid, 8373 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:47,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2961 Valid, 8373 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1243 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-11-23 02:43:47,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53790 states. [2021-11-23 02:43:50,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53790 to 53760. [2021-11-23 02:43:50,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53760 states, 30666 states have (on average 1.2254288136698623) internal successors, (37579), 31663 states have internal predecessors, (37579), 18504 states have call successors, (18504), 4601 states have call predecessors, (18504), 4589 states have return successors, (18519), 18114 states have call predecessors, (18519), 18504 states have call successors, (18519) [2021-11-23 02:43:50,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53760 states to 53760 states and 74602 transitions. [2021-11-23 02:43:50,377 INFO L78 Accepts]: Start accepts. Automaton has 53760 states and 74602 transitions. Word has length 282 [2021-11-23 02:43:50,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:50,378 INFO L470 AbstractCegarLoop]: Abstraction has 53760 states and 74602 transitions. [2021-11-23 02:43:50,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-23 02:43:50,379 INFO L276 IsEmpty]: Start isEmpty. Operand 53760 states and 74602 transitions. [2021-11-23 02:43:50,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2021-11-23 02:43:50,404 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:50,405 INFO L514 BasicCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:50,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:43:50,405 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:50,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:50,406 INFO L85 PathProgramCache]: Analyzing trace with hash -743362622, now seen corresponding path program 1 times [2021-11-23 02:43:50,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:50,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439726872] [2021-11-23 02:43:50,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:50,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:51,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1293 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1293 trivial. 0 not checked. [2021-11-23 02:43:51,083 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:51,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439726872] [2021-11-23 02:43:51,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439726872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:51,083 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:51,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:43:51,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861798293] [2021-11-23 02:43:51,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:51,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:43:51,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:51,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:43:51,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:43:51,086 INFO L87 Difference]: Start difference. First operand 53760 states and 74602 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-23 02:43:55,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:57,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:59,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:59,842 INFO L93 Difference]: Finished difference Result 109138 states and 152169 transitions. [2021-11-23 02:43:59,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:43:59,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 313 [2021-11-23 02:43:59,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:00,181 INFO L225 Difference]: With dead ends: 109138 [2021-11-23 02:44:00,181 INFO L226 Difference]: Without dead ends: 55608 [2021-11-23 02:44:00,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 02:44:00,362 INFO L933 BasicCegarLoop]: 2929 mSDtfsCounter, 99 mSDsluCounter, 6636 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 51 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 8735 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:00,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 8735 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1258 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2021-11-23 02:44:00,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55608 states. [2021-11-23 02:44:02,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55608 to 55608. [2021-11-23 02:44:02,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55608 states, 31786 states have (on average 1.226294595104763) internal successors, (38979), 32783 states have internal predecessors, (38979), 19204 states have call successors, (19204), 4629 states have call predecessors, (19204), 4617 states have return successors, (19219), 18814 states have call predecessors, (19219), 19204 states have call successors, (19219) [2021-11-23 02:44:03,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55608 states to 55608 states and 77402 transitions. [2021-11-23 02:44:03,413 INFO L78 Accepts]: Start accepts. Automaton has 55608 states and 77402 transitions. Word has length 313 [2021-11-23 02:44:03,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:03,414 INFO L470 AbstractCegarLoop]: Abstraction has 55608 states and 77402 transitions. [2021-11-23 02:44:03,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2021-11-23 02:44:03,415 INFO L276 IsEmpty]: Start isEmpty. Operand 55608 states and 77402 transitions. [2021-11-23 02:44:03,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-11-23 02:44:03,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:03,443 INFO L514 BasicCegarLoop]: trace histogram [22, 16, 16, 16, 16, 16, 16, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:03,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:44:03,443 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:44:03,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:03,444 INFO L85 PathProgramCache]: Analyzing trace with hash -914959572, now seen corresponding path program 1 times [2021-11-23 02:44:03,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:44:03,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606696753] [2021-11-23 02:44:03,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:03,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:03,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1293 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1278 trivial. 0 not checked. [2021-11-23 02:44:03,860 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:44:03,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606696753] [2021-11-23 02:44:03,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606696753] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:03,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:03,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:03,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909953555] [2021-11-23 02:44:03,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:03,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:44:03,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:03,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:44:03,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:03,863 INFO L87 Difference]: Start difference. First operand 55608 states and 77402 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-23 02:44:08,327 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:13,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:13,174 INFO L93 Difference]: Finished difference Result 127438 states and 177403 transitions. [2021-11-23 02:44:13,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:44:13,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 317 [2021-11-23 02:44:13,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:13,548 INFO L225 Difference]: With dead ends: 127438 [2021-11-23 02:44:13,549 INFO L226 Difference]: Without dead ends: 72060 [2021-11-23 02:44:13,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:13,769 INFO L933 BasicCegarLoop]: 5295 mSDtfsCounter, 2853 mSDsluCounter, 3176 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2853 SdHoareTripleChecker+Valid, 8085 SdHoareTripleChecker+Invalid, 1239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:13,769 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2853 Valid, 8085 Invalid, 1239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1219 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-23 02:44:13,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72060 states. [2021-11-23 02:44:16,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72060 to 72042. [2021-11-23 02:44:16,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72042 states, 41243 states have (on average 1.225129112819145) internal successors, (50528), 42520 states have internal predecessors, (50528), 24765 states have call successors, (24765), 6048 states have call predecessors, (24765), 6033 states have return successors, (24783), 24265 states have call predecessors, (24783), 24765 states have call successors, (24783) [2021-11-23 02:44:17,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72042 states to 72042 states and 100076 transitions. [2021-11-23 02:44:17,190 INFO L78 Accepts]: Start accepts. Automaton has 72042 states and 100076 transitions. Word has length 317 [2021-11-23 02:44:17,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:17,191 INFO L470 AbstractCegarLoop]: Abstraction has 72042 states and 100076 transitions. [2021-11-23 02:44:17,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-11-23 02:44:17,192 INFO L276 IsEmpty]: Start isEmpty. Operand 72042 states and 100076 transitions. [2021-11-23 02:44:17,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-11-23 02:44:17,220 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:17,221 INFO L514 BasicCegarLoop]: trace histogram [24, 16, 16, 16, 16, 16, 16, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 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] [2021-11-23 02:44:17,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:44:17,221 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:44:17,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:17,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1737056993, now seen corresponding path program 1 times [2021-11-23 02:44:17,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:44:17,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722273327] [2021-11-23 02:44:17,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:17,223 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:17,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2021-11-23 02:44:17,574 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:44:17,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722273327] [2021-11-23 02:44:17,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722273327] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:17,575 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:17,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:17,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294225880] [2021-11-23 02:44:17,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:17,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:44:17,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:17,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:44:17,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:17,577 INFO L87 Difference]: Start difference. First operand 72042 states and 100076 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, (36), 2 states have call predecessors, (36), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-23 02:44:21,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:24,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:26,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:28,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:28,978 INFO L93 Difference]: Finished difference Result 172483 states and 239778 transitions. [2021-11-23 02:44:28,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:44:28,979 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, (36), 2 states have call predecessors, (36), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 311 [2021-11-23 02:44:28,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:29,529 INFO L225 Difference]: With dead ends: 172483 [2021-11-23 02:44:29,529 INFO L226 Difference]: Without dead ends: 100671 [2021-11-23 02:44:29,759 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:29,759 INFO L933 BasicCegarLoop]: 5386 mSDtfsCounter, 2849 mSDsluCounter, 3235 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 28 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2849 SdHoareTripleChecker+Valid, 8233 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:29,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2849 Valid, 8233 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1262 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2021-11-23 02:44:29,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100671 states. [2021-11-23 02:44:34,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100671 to 100646. [2021-11-23 02:44:34,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100646 states, 57648 states have (on average 1.2204586455731334) internal successors, (70357), 59435 states have internal predecessors, (70357), 34456 states have call successors, (34456), 8559 states have call predecessors, (34456), 8541 states have return successors, (34477), 33764 states have call predecessors, (34477), 34456 states have call successors, (34477) [2021-11-23 02:44:34,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100646 states to 100646 states and 139290 transitions. [2021-11-23 02:44:34,959 INFO L78 Accepts]: Start accepts. Automaton has 100646 states and 139290 transitions. Word has length 311 [2021-11-23 02:44:34,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:34,961 INFO L470 AbstractCegarLoop]: Abstraction has 100646 states and 139290 transitions. [2021-11-23 02:44:34,961 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, (36), 2 states have call predecessors, (36), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-23 02:44:34,961 INFO L276 IsEmpty]: Start isEmpty. Operand 100646 states and 139290 transitions. [2021-11-23 02:44:34,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-11-23 02:44:34,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:34,982 INFO L514 BasicCegarLoop]: trace histogram [23, 16, 16, 16, 16, 16, 16, 6, 6, 4, 4, 4, 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] [2021-11-23 02:44:34,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 02:44:34,982 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:44:34,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:34,983 INFO L85 PathProgramCache]: Analyzing trace with hash 656918706, now seen corresponding path program 1 times [2021-11-23 02:44:34,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:44:34,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799343745] [2021-11-23 02:44:34,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:34,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:35,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1285 trivial. 0 not checked. [2021-11-23 02:44:35,298 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:44:35,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799343745] [2021-11-23 02:44:35,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799343745] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:35,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:35,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:44:35,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594559584] [2021-11-23 02:44:35,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:35,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:44:35,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:35,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:44:35,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:44:35,301 INFO L87 Difference]: Start difference. First operand 100646 states and 139290 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2021-11-23 02:44:41,034 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:45,071 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:50,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:50,475 INFO L93 Difference]: Finished difference Result 253988 states and 350620 transitions. [2021-11-23 02:44:50,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:44:50,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 314 [2021-11-23 02:44:50,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:51,167 INFO L225 Difference]: With dead ends: 253988 [2021-11-23 02:44:51,167 INFO L226 Difference]: Without dead ends: 153572