./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 10bb499b72e5e53415f4b388a6311d98c8f62bfee9e49e4ef36d0afd6a3d07fa --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:35:09,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:35:09,729 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:35:09,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:35:09,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:35:09,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:35:09,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:35:09,799 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:35:09,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:35:09,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:35:09,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:35:09,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:35:09,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:35:09,821 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:35:09,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:35:09,834 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:35:09,835 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:35:09,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:35:09,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:35:09,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:35:09,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:35:09,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:35:09,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:35:09,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:35:09,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:35:09,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:35:09,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:35:09,858 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:35:09,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:35:09,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:35:09,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:35:09,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:35:09,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:35:09,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:35:09,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:35:09,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:35:09,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:35:09,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:35:09,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:35:09,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:35:09,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:35:09,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 19:35:09,909 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:35:09,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:35:09,910 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:35:09,910 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:35:09,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:35:09,911 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:35:09,912 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:35:09,912 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:35:09,913 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:35:09,913 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:35:09,913 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:35:09,914 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:35:09,914 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:35:09,914 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:35:09,914 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:35:09,915 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:35:09,915 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:35:09,915 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:35:09,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:35:09,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:35:09,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:35:09,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:35:09,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:35:09,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:35:09,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:35:09,919 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:35:09,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:35:09,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:35:09,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:35:09,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:35:09,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:35:09,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:35:09,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:35:09,921 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:35:09,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:35:09,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:35:09,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:35:09,922 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:35:09,922 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_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10bb499b72e5e53415f4b388a6311d98c8f62bfee9e49e4ef36d0afd6a3d07fa [2021-11-25 19:35:10,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:35:10,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:35:10,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:35:10,233 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:35:10,234 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:35:10,236 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-25 19:35:10,351 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/data/ea33fdc0a/9223356b2592418dbfe1ccf8757e1022/FLAG43d088abf [2021-11-25 19:35:11,446 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:35:11,448 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-25 19:35:11,527 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/data/ea33fdc0a/9223356b2592418dbfe1ccf8757e1022/FLAG43d088abf [2021-11-25 19:35:11,739 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/data/ea33fdc0a/9223356b2592418dbfe1ccf8757e1022 [2021-11-25 19:35:11,742 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:35:11,744 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:35:11,745 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:35:11,745 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:35:11,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:35:11,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:35:11" (1/1) ... [2021-11-25 19:35:11,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ad81f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:35:11, skipping insertion in model container [2021-11-25 19:35:11,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:35:11" (1/1) ... [2021-11-25 19:35:11,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:35:12,015 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:35:18,105 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_3c08f8c6-77a0-4732-990b-3fa023913b99/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446625,446638] [2021-11-25 19:35:18,119 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_3c08f8c6-77a0-4732-990b-3fa023913b99/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446770,446783] [2021-11-25 19:35:18,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:35:18,290 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:35:18,862 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_3c08f8c6-77a0-4732-990b-3fa023913b99/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446625,446638] [2021-11-25 19:35:18,862 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_3c08f8c6-77a0-4732-990b-3fa023913b99/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i[446770,446783] [2021-11-25 19:35:18,869 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:35:19,374 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:35:19,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:35:19 WrapperNode [2021-11-25 19:35:19,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:35:19,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:35:19,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:35:19,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:35:19,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:35:19" (1/1) ... [2021-11-25 19:35:19,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:35:19" (1/1) ... [2021-11-25 19:35:20,014 INFO L137 Inliner]: procedures = 661, calls = 4743, calls flagged for inlining = 357, calls inlined = 344, statements flattened = 10404 [2021-11-25 19:35:20,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:35:20,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:35:20,017 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:35:20,017 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:35:20,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:35:19" (1/1) ... [2021-11-25 19:35:20,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:35:19" (1/1) ... [2021-11-25 19:35:20,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:35:19" (1/1) ... [2021-11-25 19:35:20,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:35:19" (1/1) ... [2021-11-25 19:35:20,442 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:35:19" (1/1) ... [2021-11-25 19:35:20,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:35:19" (1/1) ... [2021-11-25 19:35:20,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:35:19" (1/1) ... [2021-11-25 19:35:20,585 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:35:20,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:35:20,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:35:20,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:35:20,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:35:19" (1/1) ... [2021-11-25 19:35:20,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:35:20,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:35:20,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:35:20,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c08f8c6-77a0-4732-990b-3fa023913b99/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:35:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 19:35:20,682 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 19:35:20,682 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-11-25 19:35:20,682 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-11-25 19:35:20,683 INFO L130 BoogieDeclarations]: Found specification of procedure hw_del_addr [2021-11-25 19:35:20,683 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_del_addr [2021-11-25 19:35:20,683 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 19:35:20,683 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 19:35:20,683 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol [2021-11-25 19:35:20,684 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol [2021-11-25 19:35:20,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 19:35:20,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 19:35:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-25 19:35:20,686 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-25 19:35:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_init [2021-11-25 19:35:20,686 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_init [2021-11-25 19:35:20,686 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ack_intr [2021-11-25 19:35:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ack_intr [2021-11-25 19:35:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_timeout [2021-11-25 19:35:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_timeout [2021-11-25 19:35:20,687 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_87 [2021-11-25 19:35:20,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_87 [2021-11-25 19:35:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure bridge_change [2021-11-25 19:35:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure bridge_change [2021-11-25 19:35:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure set_flow_ctrl [2021-11-25 19:35:20,688 INFO L138 BoogieDeclarations]: Found implementation of procedure set_flow_ctrl [2021-11-25 19:35:20,688 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-25 19:35:20,689 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-25 19:35:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2021-11-25 19:35:20,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pci_device_driver_exit_14_2 [2021-11-25 19:35:20,689 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-11-25 19:35:20,689 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-11-25 19:35:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure set_tx_len [2021-11-25 19:35:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tx_len [2021-11-25 19:35:20,690 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_check_desc_num [2021-11-25 19:35:20,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_check_desc_num [2021-11-25 19:35:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-25 19:35:20,691 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-25 19:35:20,691 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 19:35:20,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 19:35:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-25 19:35:20,692 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-25 19:35:20,692 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-25 19:35:20,692 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-25 19:35:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure set_media_state [2021-11-25 19:35:20,693 INFO L138 BoogieDeclarations]: Found implementation of procedure set_media_state [2021-11-25 19:35:20,693 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-25 19:35:20,694 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-25 19:35:20,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 19:35:20,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 19:35:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-25 19:35:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-25 19:35:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_intr [2021-11-25 19:35:20,696 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_intr [2021-11-25 19:35:20,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:35:20,697 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-25 19:35:20,698 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-25 19:35:20,698 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-11-25 19:35:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-11-25 19:35:20,699 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2021-11-25 19:35:20,699 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2021-11-25 19:35:20,700 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg [2021-11-25 19:35:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg [2021-11-25 19:35:20,700 INFO L130 BoogieDeclarations]: Found specification of procedure state_gpio [2021-11-25 19:35:20,700 INFO L138 BoogieDeclarations]: Found implementation of procedure state_gpio [2021-11-25 19:35:20,700 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr [2021-11-25 19:35:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr [2021-11-25 19:35:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2021-11-25 19:35:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2021-11-25 19:35:20,701 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 19:35:20,701 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 19:35:20,702 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_resume [2021-11-25 19:35:20,702 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_resume [2021-11-25 19:35:20,702 INFO L130 BoogieDeclarations]: Found specification of procedure hw_dis_intr_bit [2021-11-25 19:35:20,702 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_dis_intr_bit [2021-11-25 19:35:20,703 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_eeprom_len [2021-11-25 19:35:20,703 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_eeprom_len [2021-11-25 19:35:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_buffers [2021-11-25 19:35:20,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_buffers [2021-11-25 19:35:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 19:35:20,704 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_clk [2021-11-25 19:35:20,705 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_clk [2021-11-25 19:35:20,705 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 19:35:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 19:35:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 19:35:20,706 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset [2021-11-25 19:35:20,706 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset [2021-11-25 19:35:20,707 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 19:35:20,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 19:35:20,708 INFO L130 BoogieDeclarations]: Found specification of procedure rx_proc [2021-11-25 19:35:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_proc [2021-11-25 19:35:20,709 INFO L130 BoogieDeclarations]: Found specification of procedure release_desc [2021-11-25 19:35:20,709 INFO L138 BoogieDeclarations]: Found implementation of procedure release_desc [2021-11-25 19:35:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:35:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-25 19:35:20,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-25 19:35:20,710 INFO L130 BoogieDeclarations]: Found specification of procedure hw_resume_rx [2021-11-25 19:35:20,710 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_resume_rx [2021-11-25 19:35:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 19:35:20,711 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 19:35:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 19:35:20,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 19:35:20,711 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_netpoll [2021-11-25 19:35:20,712 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_netpoll [2021-11-25 19:35:20,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 19:35:20,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 19:35:20,713 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-11-25 19:35:20,713 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-11-25 19:35:20,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 19:35:20,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 19:35:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 19:35:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 19:35:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure hw_ena_add_addr [2021-11-25 19:35:20,718 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_ena_add_addr [2021-11-25 19:35:20,719 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2021-11-25 19:35:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2021-11-25 19:35:20,720 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_grp_addr [2021-11-25 19:35:20,720 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_grp_addr [2021-11-25 19:35:20,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:35:20,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 19:35:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 19:35:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-25 19:35:20,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-25 19:35:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:35:20,728 INFO L130 BoogieDeclarations]: Found specification of procedure sw_w_sta_mac_table [2021-11-25 19:35:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_w_sta_mac_table [2021-11-25 19:35:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_nway_reset [2021-11-25 19:35:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_nway_reset [2021-11-25 19:35:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 19:35:20,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 19:35:20,729 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 19:35:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 19:35:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:35:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:35:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 19:35:20,730 INFO L130 BoogieDeclarations]: Found specification of procedure hw_stop_rx [2021-11-25 19:35:20,730 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_stop_rx [2021-11-25 19:35:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_intr [2021-11-25 19:35:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_intr [2021-11-25 19:35:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:35:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 19:35:20,731 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-25 19:35:20,731 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-25 19:35:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 19:35:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 19:35:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 19:35:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 19:35:20,732 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_rx_buffers [2021-11-25 19:35:20,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_rx_buffers [2021-11-25 19:35:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_free_mem [2021-11-25 19:35:20,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_free_mem [2021-11-25 19:35:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-25 19:35:20,733 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-25 19:35:20,733 INFO L130 BoogieDeclarations]: Found specification of procedure hw_w_phy [2021-11-25 19:35:20,733 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_w_phy [2021-11-25 19:35:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-25 19:35:20,734 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-25 19:35:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-25 19:35:20,734 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-25 19:35:20,734 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-25 19:35:20,734 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-25 19:35:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_set_rx_mode [2021-11-25 19:35:20,735 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_set_rx_mode [2021-11-25 19:35:20,735 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-25 19:35:20,736 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-25 19:35:20,736 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2021-11-25 19:35:20,736 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2021-11-25 19:35:20,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:35:20,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:35:20,736 INFO L130 BoogieDeclarations]: Found specification of procedure transmit_cleanup [2021-11-25 19:35:20,737 INFO L138 BoogieDeclarations]: Found implementation of procedure transmit_cleanup [2021-11-25 19:35:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure hw_r_phy [2021-11-25 19:35:20,737 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_r_phy [2021-11-25 19:35:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_addr [2021-11-25 19:35:20,737 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_addr [2021-11-25 19:35:20,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 19:35:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 19:35:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 19:35:20,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 19:35:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_pkt [2021-11-25 19:35:20,738 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_pkt [2021-11-25 19:35:20,738 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_close [2021-11-25 19:35:20,739 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_close [2021-11-25 19:35:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure port_get_link_speed [2021-11-25 19:35:20,741 INFO L138 BoogieDeclarations]: Found implementation of procedure port_get_link_speed [2021-11-25 19:35:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure port_r16 [2021-11-25 19:35:20,741 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r16 [2021-11-25 19:35:20,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_hwlock_of_dev_info [2021-11-25 19:35:20,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_hwlock_of_dev_info [2021-11-25 19:35:20,742 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_port_base_vlan [2021-11-25 19:35:20,742 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_port_base_vlan [2021-11-25 19:35:20,742 INFO L130 BoogieDeclarations]: Found specification of procedure drop_gpio [2021-11-25 19:35:20,742 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_gpio [2021-11-25 19:35:20,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 19:35:20,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 19:35:20,743 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_desc_base [2021-11-25 19:35:20,743 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_desc_base [2021-11-25 19:35:20,743 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 19:35:20,743 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 19:35:20,743 INFO L130 BoogieDeclarations]: Found specification of procedure hw_block_intr [2021-11-25 19:35:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_block_intr [2021-11-25 19:35:20,744 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-25 19:35:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-25 19:35:20,744 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2021-11-25 19:35:20,744 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2021-11-25 19:35:20,744 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2021-11-25 19:35:20,745 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2021-11-25 19:35:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_init_timer [2021-11-25 19:35:20,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_init_timer [2021-11-25 19:35:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure hw_reset_pkts [2021-11-25 19:35:20,745 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_reset_pkts [2021-11-25 19:35:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:35:20,746 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:35:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure hw_disable [2021-11-25 19:35:20,746 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_disable [2021-11-25 19:35:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 19:35:20,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 19:35:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2021-11-25 19:35:20,747 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2021-11-25 19:35:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure get_mac_addr [2021-11-25 19:35:20,747 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mac_addr [2021-11-25 19:35:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure hw_restore_intr [2021-11-25 19:35:20,747 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_restore_intr [2021-11-25 19:35:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 19:35:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 19:35:20,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:35:20,748 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 19:35:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 19:35:20,748 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-25 19:35:20,748 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-25 19:35:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure hw_start_rx [2021-11-25 19:35:20,749 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_start_rx [2021-11-25 19:35:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:35:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure port_cfg_broad_storm [2021-11-25 19:35:20,749 INFO L138 BoogieDeclarations]: Found implementation of procedure port_cfg_broad_storm [2021-11-25 19:35:20,749 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-25 19:35:20,751 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-25 19:35:20,755 INFO L130 BoogieDeclarations]: Found specification of procedure hw_turn_on_intr [2021-11-25 19:35:20,755 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_turn_on_intr [2021-11-25 19:35:20,755 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-25 19:35:20,755 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-25 19:35:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure sw_chk [2021-11-25 19:35:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_chk [2021-11-25 19:35:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_86 [2021-11-25 19:35:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_86 [2021-11-25 19:35:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 19:35:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_wol_frame [2021-11-25 19:35:20,872 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_wol_frame [2021-11-25 19:35:20,872 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 19:35:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 19:35:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-25 19:35:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-25 19:35:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-25 19:35:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-25 19:35:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 19:35:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 19:35:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-25 19:35:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-25 19:35:20,873 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_pkt [2021-11-25 19:35:20,873 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_pkt [2021-11-25 19:35:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 19:35:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 19:35:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg [2021-11-25 19:35:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg [2021-11-25 19:35:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_open [2021-11-25 19:35:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_open [2021-11-25 19:35:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_hwlock_of_dev_info [2021-11-25 19:35:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_hwlock_of_dev_info [2021-11-25 19:35:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_update_timer [2021-11-25 19:35:20,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_update_timer [2021-11-25 19:35:20,874 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 19:35:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 19:35:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_free [2021-11-25 19:35:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_free [2021-11-25 19:35:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_stop_timer [2021-11-25 19:35:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_stop_timer [2021-11-25 19:35:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-25 19:35:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-25 19:35:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_intr [2021-11-25 19:35:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_intr [2021-11-25 19:35:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-25 19:35:20,875 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-25 19:35:20,875 INFO L130 BoogieDeclarations]: Found specification of procedure hw_add_addr [2021-11-25 19:35:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_add_addr [2021-11-25 19:35:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure port_r_mib_cnt [2021-11-25 19:35:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure port_r_mib_cnt [2021-11-25 19:35:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure free_dma_buf [2021-11-25 19:35:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure free_dma_buf [2021-11-25 19:35:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-25 19:35:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-25 19:35:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 19:35:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 19:35:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:35:20,876 INFO L130 BoogieDeclarations]: Found specification of procedure hw_set_multicast [2021-11-25 19:35:20,876 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_set_multicast [2021-11-25 19:35:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 19:35:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 19:35:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_regs_len [2021-11-25 19:35:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_regs_len [2021-11-25 19:35:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_multicast [2021-11-25 19:35:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_multicast [2021-11-25 19:35:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_link_speed [2021-11-25 19:35:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_link_speed [2021-11-25 19:35:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure raise_gpio [2021-11-25 19:35:20,877 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_gpio [2021-11-25 19:35:20,877 INFO L130 BoogieDeclarations]: Found specification of procedure port_w16 [2021-11-25 19:35:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure port_w16 [2021-11-25 19:35:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure empty_addr [2021-11-25 19:35:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure empty_addr [2021-11-25 19:35:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-25 19:35:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-25 19:35:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure mib_read_work [2021-11-25 19:35:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure mib_read_work [2021-11-25 19:35:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable_wol [2021-11-25 19:35:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable_wol [2021-11-25 19:35:20,878 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_stp_state [2021-11-25 19:35:20,878 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_stp_state [2021-11-25 19:35:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure hw_clr_wol_pme_status [2021-11-25 19:35:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_clr_wol_pme_status [2021-11-25 19:35:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_95 [2021-11-25 19:35:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_95 [2021-11-25 19:35:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_start_timer [2021-11-25 19:35:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_start_timer [2021-11-25 19:35:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure ether_addr_equal [2021-11-25 19:35:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_addr_equal [2021-11-25 19:35:20,879 INFO L130 BoogieDeclarations]: Found specification of procedure copy_old_skb [2021-11-25 19:35:20,879 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_old_skb [2021-11-25 19:35:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure hw_cfg_wol_pme [2021-11-25 19:35:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_cfg_wol_pme [2021-11-25 19:35:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_buf [2021-11-25 19:35:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_buf [2021-11-25 19:35:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_network_header [2021-11-25 19:35:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_network_header [2021-11-25 19:35:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 19:35:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 19:35:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-25 19:35:20,880 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-25 19:35:20,880 INFO L130 BoogieDeclarations]: Found specification of procedure pcidev_exit [2021-11-25 19:35:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure pcidev_exit [2021-11-25 19:35:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure hw_enable [2021-11-25 19:35:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure hw_enable [2021-11-25 19:35:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure ksz_alloc_soft_desc [2021-11-25 19:35:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ksz_alloc_soft_desc [2021-11-25 19:35:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-25 19:35:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-25 19:35:20,881 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-25 19:35:20,881 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-25 19:35:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure sw_cfg_broad_storm [2021-11-25 19:35:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure sw_cfg_broad_storm [2021-11-25 19:35:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:35:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 19:35:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 19:35:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure port_set_power_saving [2021-11-25 19:35:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure port_set_power_saving [2021-11-25 19:35:20,882 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-25 19:35:20,882 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-25 19:35:20,883 INFO L130 BoogieDeclarations]: Found specification of procedure spi_reg [2021-11-25 19:35:20,883 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_reg [2021-11-25 19:35:22,325 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:35:22,333 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:35:26,680 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 19:35:44,868 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 19:35:45,028 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:35:47,918 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:35:47,918 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-25 19:35:47,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:35:47 BoogieIcfgContainer [2021-11-25 19:35:47,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:35:47,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:35:47,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:35:47,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:35:47,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:35:11" (1/3) ... [2021-11-25 19:35:47,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ccf512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:35:47, skipping insertion in model container [2021-11-25 19:35:47,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:35:19" (2/3) ... [2021-11-25 19:35:47,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64ccf512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:35:47, skipping insertion in model container [2021-11-25 19:35:47,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:35:47" (3/3) ... [2021-11-25 19:35:47,935 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-micrel-ksz884x.cil.i [2021-11-25 19:35:47,941 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:35:47,941 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 19:35:48,023 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:35:48,039 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:35:48,039 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 19:35:48,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 2318 states, 1382 states have (on average 1.3140376266280753) internal successors, (1816), 1447 states have internal predecessors, (1816), 769 states have call successors, (769), 171 states have call predecessors, (769), 170 states have return successors, (763), 750 states have call predecessors, (763), 763 states have call successors, (763) [2021-11-25 19:35:48,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-25 19:35:48,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:35:48,183 INFO L514 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:35:48,183 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:35:48,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:35:48,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1688980558, now seen corresponding path program 1 times [2021-11-25 19:35:48,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:35:48,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395226325] [2021-11-25 19:35:48,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:35:48,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:35:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:35:49,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2021-11-25 19:35:49,115 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:35:49,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395226325] [2021-11-25 19:35:49,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395226325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:35:49,116 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:35:49,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:35:49,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931273718] [2021-11-25 19:35:49,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:35:49,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:35:49,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:35:49,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:35:49,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:35:49,163 INFO L87 Difference]: Start difference. First operand has 2318 states, 1382 states have (on average 1.3140376266280753) internal successors, (1816), 1447 states have internal predecessors, (1816), 769 states have call successors, (769), 171 states have call predecessors, (769), 170 states have return successors, (763), 750 states have call predecessors, (763), 763 states have call successors, (763) Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 19:35:52,971 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 [] [2021-11-25 19:35:58,154 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:36:01,732 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:36:02,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:02,089 INFO L93 Difference]: Finished difference Result 6367 states and 9218 transitions. [2021-11-25 19:36:02,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:36:02,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 244 [2021-11-25 19:36:02,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:02,167 INFO L225 Difference]: With dead ends: 6367 [2021-11-25 19:36:02,167 INFO L226 Difference]: Without dead ends: 4031 [2021-11-25 19:36:02,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:36:02,189 INFO L933 BasicCegarLoop]: 3373 mSDtfsCounter, 2532 mSDsluCounter, 3260 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2535 SdHoareTripleChecker+Valid, 6125 SdHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:02,190 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2535 Valid, 6125 Invalid, 1116 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1096 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2021-11-25 19:36:02,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4031 states. [2021-11-25 19:36:02,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4031 to 4028. [2021-11-25 19:36:02,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4028 states, 2421 states have (on average 1.3093762907889301) internal successors, (3170), 2531 states have internal predecessors, (3170), 1290 states have call successors, (1290), 316 states have call predecessors, (1290), 316 states have return successors, (1293), 1270 states have call predecessors, (1293), 1290 states have call successors, (1293) [2021-11-25 19:36:02,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 5753 transitions. [2021-11-25 19:36:02,559 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 5753 transitions. Word has length 244 [2021-11-25 19:36:02,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:02,564 INFO L470 AbstractCegarLoop]: Abstraction has 4028 states and 5753 transitions. [2021-11-25 19:36:02,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 19:36:02,567 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 5753 transitions. [2021-11-25 19:36:02,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2021-11-25 19:36:02,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:02,586 INFO L514 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:02,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 19:36:02,586 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:36:02,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:02,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1983413453, now seen corresponding path program 1 times [2021-11-25 19:36:02,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:02,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007302898] [2021-11-25 19:36:02,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:02,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:03,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2021-11-25 19:36:03,072 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:03,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007302898] [2021-11-25 19:36:03,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007302898] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:03,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:03,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:36:03,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344854374] [2021-11-25 19:36:03,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:03,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:36:03,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:03,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:36:03,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:36:03,079 INFO L87 Difference]: Start difference. First operand 4028 states and 5753 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 19:36:05,673 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 [] [2021-11-25 19:36:13,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:13,555 INFO L93 Difference]: Finished difference Result 10860 states and 15352 transitions. [2021-11-25 19:36:13,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:36:13,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 247 [2021-11-25 19:36:13,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:13,757 INFO L225 Difference]: With dead ends: 10860 [2021-11-25 19:36:13,757 INFO L226 Difference]: Without dead ends: 6871 [2021-11-25 19:36:13,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:36:13,776 INFO L933 BasicCegarLoop]: 3309 mSDtfsCounter, 2445 mSDsluCounter, 3150 mSDsCounter, 0 mSdLazyCounter, 1101 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 5993 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1101 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:13,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2448 Valid, 5993 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1101 Invalid, 1 Unknown, 0 Unchecked, 10.1s Time] [2021-11-25 19:36:13,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6871 states. [2021-11-25 19:36:14,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6871 to 6867. [2021-11-25 19:36:14,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6867 states, 4119 states have (on average 1.29278951201748) internal successors, (5325), 4309 states have internal predecessors, (5325), 2153 states have call successors, (2153), 594 states have call predecessors, (2153), 594 states have return successors, (2166), 2116 states have call predecessors, (2166), 2153 states have call successors, (2166) [2021-11-25 19:36:14,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6867 states to 6867 states and 9644 transitions. [2021-11-25 19:36:14,157 INFO L78 Accepts]: Start accepts. Automaton has 6867 states and 9644 transitions. Word has length 247 [2021-11-25 19:36:14,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:14,159 INFO L470 AbstractCegarLoop]: Abstraction has 6867 states and 9644 transitions. [2021-11-25 19:36:14,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-25 19:36:14,160 INFO L276 IsEmpty]: Start isEmpty. Operand 6867 states and 9644 transitions. [2021-11-25 19:36:14,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-25 19:36:14,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:14,170 INFO L514 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:14,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 19:36:14,170 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:36:14,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:14,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1253946095, now seen corresponding path program 1 times [2021-11-25 19:36:14,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:14,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502119229] [2021-11-25 19:36:14,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:14,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1408 trivial. 0 not checked. [2021-11-25 19:36:14,713 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:14,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502119229] [2021-11-25 19:36:14,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502119229] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:14,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:14,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:36:14,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923952149] [2021-11-25 19:36:14,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:14,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:36:14,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:14,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:36:14,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:36:14,717 INFO L87 Difference]: Start difference. First operand 6867 states and 9644 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 19:36:17,810 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 [] [2021-11-25 19:36:24,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:36:27,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:36:28,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:28,442 INFO L93 Difference]: Finished difference Result 19430 states and 27292 transitions. [2021-11-25 19:36:28,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:36:28,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 258 [2021-11-25 19:36:28,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:28,568 INFO L225 Difference]: With dead ends: 19430 [2021-11-25 19:36:28,568 INFO L226 Difference]: Without dead ends: 12602 [2021-11-25 19:36:28,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:36:28,622 INFO L933 BasicCegarLoop]: 4026 mSDtfsCounter, 3091 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3096 SdHoareTripleChecker+Valid, 6760 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:28,623 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3096 Valid, 6760 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1192 Invalid, 2 Unknown, 0 Unchecked, 13.2s Time] [2021-11-25 19:36:28,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12602 states. [2021-11-25 19:36:29,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12602 to 12586. [2021-11-25 19:36:29,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12586 states, 7529 states have (on average 1.2915393810599016) internal successors, (9724), 7879 states have internal predecessors, (9724), 3953 states have call successors, (3953), 1099 states have call predecessors, (3953), 1103 states have return successors, (4010), 3879 states have call predecessors, (4010), 3953 states have call successors, (4010) [2021-11-25 19:36:29,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12586 states to 12586 states and 17687 transitions. [2021-11-25 19:36:29,466 INFO L78 Accepts]: Start accepts. Automaton has 12586 states and 17687 transitions. Word has length 258 [2021-11-25 19:36:29,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:29,467 INFO L470 AbstractCegarLoop]: Abstraction has 12586 states and 17687 transitions. [2021-11-25 19:36:29,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-25 19:36:29,468 INFO L276 IsEmpty]: Start isEmpty. Operand 12586 states and 17687 transitions. [2021-11-25 19:36:29,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-11-25 19:36:29,482 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:29,482 INFO L514 BasicCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:29,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 19:36:29,483 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:36:29,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:29,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1330982490, now seen corresponding path program 1 times [2021-11-25 19:36:29,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:29,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840751930] [2021-11-25 19:36:29,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:29,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:29,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1455 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1448 trivial. 0 not checked. [2021-11-25 19:36:29,958 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:29,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840751930] [2021-11-25 19:36:29,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840751930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:29,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:29,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:36:29,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469249868] [2021-11-25 19:36:29,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:29,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:36:29,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:29,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:36:29,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:36:29,961 INFO L87 Difference]: Start difference. First operand 12586 states and 17687 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-25 19:36:33,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:36:40,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:36:43,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:43,405 INFO L93 Difference]: Finished difference Result 37658 states and 52916 transitions. [2021-11-25 19:36:43,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:36:43,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 279 [2021-11-25 19:36:43,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:43,577 INFO L225 Difference]: With dead ends: 37658 [2021-11-25 19:36:43,577 INFO L226 Difference]: Without dead ends: 25111 [2021-11-25 19:36:43,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:36:43,662 INFO L933 BasicCegarLoop]: 4116 mSDtfsCounter, 3173 mSDsluCounter, 3247 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3179 SdHoareTripleChecker+Valid, 6850 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:43,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3179 Valid, 6850 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1201 Invalid, 2 Unknown, 0 Unchecked, 12.8s Time] [2021-11-25 19:36:43,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25111 states. [2021-11-25 19:36:45,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25111 to 25091. [2021-11-25 19:36:45,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25091 states, 15011 states have (on average 1.291386316701086) internal successors, (19385), 15723 states have internal predecessors, (19385), 7875 states have call successors, (7875), 2196 states have call predecessors, (7875), 2204 states have return successors, (7992), 7715 states have call predecessors, (7992), 7875 states have call successors, (7992) [2021-11-25 19:36:45,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25091 states to 25091 states and 35252 transitions. [2021-11-25 19:36:45,226 INFO L78 Accepts]: Start accepts. Automaton has 25091 states and 35252 transitions. Word has length 279 [2021-11-25 19:36:45,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:36:45,231 INFO L470 AbstractCegarLoop]: Abstraction has 25091 states and 35252 transitions. [2021-11-25 19:36:45,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-25 19:36:45,231 INFO L276 IsEmpty]: Start isEmpty. Operand 25091 states and 35252 transitions. [2021-11-25 19:36:45,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-25 19:36:45,257 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:36:45,257 INFO L514 BasicCegarLoop]: trace histogram [22, 19, 19, 19, 19, 19, 19, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:36:45,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 19:36:45,258 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:36:45,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:36:45,258 INFO L85 PathProgramCache]: Analyzing trace with hash -973570105, now seen corresponding path program 1 times [2021-11-25 19:36:45,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:36:45,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221052077] [2021-11-25 19:36:45,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:36:45,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:36:45,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:36:45,680 INFO L134 CoverageAnalysis]: Checked inductivity of 1506 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2021-11-25 19:36:45,680 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:36:45,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221052077] [2021-11-25 19:36:45,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221052077] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:36:45,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:36:45,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:36:45,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365025815] [2021-11-25 19:36:45,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:36:45,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:36:45,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:36:45,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:36:45,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:36:45,683 INFO L87 Difference]: Start difference. First operand 25091 states and 35252 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-25 19:36:49,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:36:53,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:36:58,234 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 [] [2021-11-25 19:36:58,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:36:58,482 INFO L93 Difference]: Finished difference Result 50501 states and 70839 transitions. [2021-11-25 19:36:58,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:36:58,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 291 [2021-11-25 19:36:58,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:36:58,620 INFO L225 Difference]: With dead ends: 50501 [2021-11-25 19:36:58,621 INFO L226 Difference]: Without dead ends: 25449 [2021-11-25 19:36:58,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:36:58,716 INFO L933 BasicCegarLoop]: 2797 mSDtfsCounter, 333 mSDsluCounter, 3216 mSDsCounter, 0 mSdLazyCounter, 1057 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 5503 SdHoareTripleChecker+Invalid, 1064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1057 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2021-11-25 19:36:58,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [333 Valid, 5503 Invalid, 1064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1057 Invalid, 3 Unknown, 0 Unchecked, 12.0s Time] [2021-11-25 19:36:58,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25449 states. [2021-11-25 19:37:00,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25449 to 25449. [2021-11-25 19:37:00,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25449 states, 15232 states have (on average 1.2892594537815125) internal successors, (19638), 15951 states have internal predecessors, (19638), 7943 states have call successors, (7943), 2265 states have call predecessors, (7943), 2273 states have return successors, (8060), 7783 states have call predecessors, (8060), 7943 states have call successors, (8060) [2021-11-25 19:37:00,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25449 states to 25449 states and 35641 transitions. [2021-11-25 19:37:00,490 INFO L78 Accepts]: Start accepts. Automaton has 25449 states and 35641 transitions. Word has length 291 [2021-11-25 19:37:00,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:00,492 INFO L470 AbstractCegarLoop]: Abstraction has 25449 states and 35641 transitions. [2021-11-25 19:37:00,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-25 19:37:00,492 INFO L276 IsEmpty]: Start isEmpty. Operand 25449 states and 35641 transitions. [2021-11-25 19:37:00,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-25 19:37:00,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:00,512 INFO L514 BasicCegarLoop]: trace histogram [24, 20, 20, 20, 20, 20, 20, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:00,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 19:37:00,512 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:37:00,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:00,513 INFO L85 PathProgramCache]: Analyzing trace with hash -2036800215, now seen corresponding path program 1 times [2021-11-25 19:37:00,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:00,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701465484] [2021-11-25 19:37:00,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:00,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:00,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1725 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1722 trivial. 0 not checked. [2021-11-25 19:37:00,896 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:00,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701465484] [2021-11-25 19:37:00,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701465484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:00,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:00,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:37:00,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442559734] [2021-11-25 19:37:00,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:00,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:37:00,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:00,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:37:00,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:37:00,900 INFO L87 Difference]: Start difference. First operand 25449 states and 35641 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-25 19:37:04,503 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 [] [2021-11-25 19:37:11,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:11,415 INFO L93 Difference]: Finished difference Result 60103 states and 84094 transitions. [2021-11-25 19:37:11,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:37:11,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 291 [2021-11-25 19:37:11,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:11,634 INFO L225 Difference]: With dead ends: 60103 [2021-11-25 19:37:11,635 INFO L226 Difference]: Without dead ends: 34939 [2021-11-25 19:37:11,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:37:11,888 INFO L933 BasicCegarLoop]: 4166 mSDtfsCounter, 2474 mSDsluCounter, 3202 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2477 SdHoareTripleChecker+Valid, 6860 SdHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:11,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2477 Valid, 6860 Invalid, 1344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1328 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2021-11-25 19:37:11,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34939 states. [2021-11-25 19:37:13,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34939 to 34929. [2021-11-25 19:37:13,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34929 states, 20912 states have (on average 1.2872991583779647) internal successors, (26920), 21893 states have internal predecessors, (26920), 10811 states have call successors, (10811), 3189 states have call predecessors, (10811), 3205 states have return successors, (10960), 10609 states have call predecessors, (10960), 10811 states have call successors, (10960) [2021-11-25 19:37:13,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34929 states to 34929 states and 48691 transitions. [2021-11-25 19:37:13,664 INFO L78 Accepts]: Start accepts. Automaton has 34929 states and 48691 transitions. Word has length 291 [2021-11-25 19:37:13,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:13,666 INFO L470 AbstractCegarLoop]: Abstraction has 34929 states and 48691 transitions. [2021-11-25 19:37:13,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-25 19:37:13,666 INFO L276 IsEmpty]: Start isEmpty. Operand 34929 states and 48691 transitions. [2021-11-25 19:37:13,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2021-11-25 19:37:13,697 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:13,697 INFO L514 BasicCegarLoop]: trace histogram [25, 19, 19, 19, 19, 19, 19, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:13,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 19:37:13,698 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:37:13,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:13,698 INFO L85 PathProgramCache]: Analyzing trace with hash 283828016, now seen corresponding path program 1 times [2021-11-25 19:37:13,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:13,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316368325] [2021-11-25 19:37:13,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:13,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:15,349 INFO L134 CoverageAnalysis]: Checked inductivity of 1685 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1685 trivial. 0 not checked. [2021-11-25 19:37:15,349 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:15,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316368325] [2021-11-25 19:37:15,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316368325] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:15,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:15,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 19:37:15,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867337529] [2021-11-25 19:37:15,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:15,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 19:37:15,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:15,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 19:37:15,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 19:37:15,352 INFO L87 Difference]: Start difference. First operand 34929 states and 48691 transitions. Second operand has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-25 19:37:20,646 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:37:34,606 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:37:35,818 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:37:37,978 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:37:40,103 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:37:47,981 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:37:49,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:37:50,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:37:50,710 INFO L93 Difference]: Finished difference Result 65103 states and 90747 transitions. [2021-11-25 19:37:50,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 19:37:50,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) Word has length 336 [2021-11-25 19:37:50,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:37:51,047 INFO L225 Difference]: With dead ends: 65103 [2021-11-25 19:37:51,047 INFO L226 Difference]: Without dead ends: 65101 [2021-11-25 19:37:51,083 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 19:37:51,085 INFO L933 BasicCegarLoop]: 3470 mSDtfsCounter, 2818 mSDsluCounter, 13927 mSDsCounter, 0 mSdLazyCounter, 4079 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2819 SdHoareTripleChecker+Valid, 15236 SdHoareTripleChecker+Invalid, 4087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4079 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:37:51,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2819 Valid, 15236 Invalid, 4087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 4079 Invalid, 4 Unknown, 0 Unchecked, 32.5s Time] [2021-11-25 19:37:51,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65101 states. [2021-11-25 19:37:54,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65101 to 64908. [2021-11-25 19:37:54,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64908 states, 39015 states have (on average 1.2881968473663976) internal successors, (50259), 40815 states have internal predecessors, (50259), 19876 states have call successors, (19876), 6098 states have call predecessors, (19876), 6016 states have return successors, (20346), 19257 states have call predecessors, (20346), 19876 states have call successors, (20346) [2021-11-25 19:37:55,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64908 states to 64908 states and 90481 transitions. [2021-11-25 19:37:55,032 INFO L78 Accepts]: Start accepts. Automaton has 64908 states and 90481 transitions. Word has length 336 [2021-11-25 19:37:55,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:37:55,035 INFO L470 AbstractCegarLoop]: Abstraction has 64908 states and 90481 transitions. [2021-11-25 19:37:55,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (36), 3 states have call predecessors, (36), 2 states have call successors, (36) [2021-11-25 19:37:55,036 INFO L276 IsEmpty]: Start isEmpty. Operand 64908 states and 90481 transitions. [2021-11-25 19:37:55,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2021-11-25 19:37:55,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:37:55,144 INFO L514 BasicCegarLoop]: trace histogram [27, 19, 19, 19, 19, 19, 19, 7, 7, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:37:55,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 19:37:55,145 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:37:55,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:37:55,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1915158011, now seen corresponding path program 1 times [2021-11-25 19:37:55,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:37:55,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539088954] [2021-11-25 19:37:55,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:37:55,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:37:55,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:37:56,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1840 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1826 trivial. 0 not checked. [2021-11-25 19:37:56,085 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:37:56,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539088954] [2021-11-25 19:37:56,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539088954] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:37:56,086 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:37:56,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:37:56,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760761369] [2021-11-25 19:37:56,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:37:56,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:37:56,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:37:56,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:37:56,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:37:56,090 INFO L87 Difference]: Start difference. First operand 64908 states and 90481 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-25 19:37:58,987 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 [] [2021-11-25 19:38:06,873 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:38:11,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:38:14,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:38:14,139 INFO L93 Difference]: Finished difference Result 192518 states and 268590 transitions. [2021-11-25 19:38:14,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:38:14,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) Word has length 397 [2021-11-25 19:38:14,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:38:14,973 INFO L225 Difference]: With dead ends: 192518 [2021-11-25 19:38:14,973 INFO L226 Difference]: Without dead ends: 127649 [2021-11-25 19:38:15,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:38:15,200 INFO L933 BasicCegarLoop]: 3475 mSDtfsCounter, 3181 mSDsluCounter, 3237 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3184 SdHoareTripleChecker+Valid, 6200 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2021-11-25 19:38:15,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3184 Valid, 6200 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1053 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2021-11-25 19:38:15,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127649 states. [2021-11-25 19:38:21,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127649 to 127507. [2021-11-25 19:38:22,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127507 states, 76698 states have (on average 1.2878953818874026) internal successors, (98779), 80270 states have internal predecessors, (98779), 38940 states have call successors, (38940), 12016 states have call predecessors, (38940), 11868 states have return successors, (40160), 37688 states have call predecessors, (40160), 38940 states have call successors, (40160) [2021-11-25 19:38:23,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127507 states to 127507 states and 177879 transitions. [2021-11-25 19:38:23,100 INFO L78 Accepts]: Start accepts. Automaton has 127507 states and 177879 transitions. Word has length 397 [2021-11-25 19:38:23,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:38:23,101 INFO L470 AbstractCegarLoop]: Abstraction has 127507 states and 177879 transitions. [2021-11-25 19:38:23,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50) [2021-11-25 19:38:23,102 INFO L276 IsEmpty]: Start isEmpty. Operand 127507 states and 177879 transitions. [2021-11-25 19:38:23,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2021-11-25 19:38:23,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:38:23,191 INFO L514 BasicCegarLoop]: trace histogram [25, 19, 19, 19, 19, 19, 19, 10, 10, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:38:23,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 19:38:23,192 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 19:38:23,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:38:23,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1636204247, now seen corresponding path program 1 times [2021-11-25 19:38:23,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:38:23,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607194336] [2021-11-25 19:38:23,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:38:23,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:38:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:38:23,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1803 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1791 trivial. 0 not checked. [2021-11-25 19:38:23,806 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:38:23,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607194336] [2021-11-25 19:38:23,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607194336] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:38:23,806 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:38:23,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 19:38:23,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515142908] [2021-11-25 19:38:23,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:38:23,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:38:23,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:38:23,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:38:23,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:38:23,809 INFO L87 Difference]: Start difference. First operand 127507 states and 177879 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2021-11-25 19:38:26,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 19:38:34,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []