./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-wan-lmc-lmc.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_68fbdf94-3b6a-4aaf-9c7f-71736207422f/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fbdf94-3b6a-4aaf-9c7f-71736207422f/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_68fbdf94-3b6a-4aaf-9c7f-71736207422f/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fbdf94-3b6a-4aaf-9c7f-71736207422f/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fbdf94-3b6a-4aaf-9c7f-71736207422f/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_68fbdf94-3b6a-4aaf-9c7f-71736207422f/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 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 17:59:54,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 17:59:54,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 17:59:54,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 17:59:54,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 17:59:54,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 17:59:54,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 17:59:54,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 17:59:54,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 17:59:54,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 17:59:54,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 17:59:54,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 17:59:54,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 17:59:54,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 17:59:54,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 17:59:54,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 17:59:54,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 17:59:54,767 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 17:59:54,770 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 17:59:54,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 17:59:54,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 17:59:54,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 17:59:54,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 17:59:54,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 17:59:54,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 17:59:54,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 17:59:54,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 17:59:54,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 17:59:54,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 17:59:54,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 17:59:54,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 17:59:54,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 17:59:54,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 17:59:54,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 17:59:54,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 17:59:54,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 17:59:54,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 17:59:54,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 17:59:54,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 17:59:54,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 17:59:54,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 17:59:54,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fbdf94-3b6a-4aaf-9c7f-71736207422f/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 17:59:54,831 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 17:59:54,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 17:59:54,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 17:59:54,832 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 17:59:54,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 17:59:54,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 17:59:54,833 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 17:59:54,834 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 17:59:54,834 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 17:59:54,834 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 17:59:54,834 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 17:59:54,835 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 17:59:54,835 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 17:59:54,835 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 17:59:54,835 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 17:59:54,836 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 17:59:54,836 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 17:59:54,836 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 17:59:54,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 17:59:54,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 17:59:54,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 17:59:54,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 17:59:54,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 17:59:54,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 17:59:54,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 17:59:54,839 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 17:59:54,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 17:59:54,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 17:59:54,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 17:59:54,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 17:59:54,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 17:59:54,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 17:59:54,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 17:59:54,841 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 17:59:54,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 17:59:54,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 17:59:54,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 17:59:54,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 17:59:54,842 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_68fbdf94-3b6a-4aaf-9c7f-71736207422f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fbdf94-3b6a-4aaf-9c7f-71736207422f/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e81fc6166b432b951460f7a3a0e3bbe6d1e1e00a7297f549296af2cd8a39c75 [2021-11-25 17:59:55,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 17:59:55,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 17:59:55,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 17:59:55,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 17:59:55,211 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 17:59:55,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fbdf94-3b6a-4aaf-9c7f-71736207422f/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-25 17:59:55,294 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fbdf94-3b6a-4aaf-9c7f-71736207422f/bin/utaipan-eEHZpOm5b7/data/ce433d79f/070f1ee72f964a0a954dfef30bae474d/FLAG8afc91101 [2021-11-25 17:59:56,469 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 17:59:56,470 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fbdf94-3b6a-4aaf-9c7f-71736207422f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-25 17:59:56,541 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fbdf94-3b6a-4aaf-9c7f-71736207422f/bin/utaipan-eEHZpOm5b7/data/ce433d79f/070f1ee72f964a0a954dfef30bae474d/FLAG8afc91101 [2021-11-25 17:59:56,684 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fbdf94-3b6a-4aaf-9c7f-71736207422f/bin/utaipan-eEHZpOm5b7/data/ce433d79f/070f1ee72f964a0a954dfef30bae474d [2021-11-25 17:59:56,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 17:59:56,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 17:59:56,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 17:59:56,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 17:59:56,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 17:59:56,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:59:56" (1/1) ... [2021-11-25 17:59:56,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f469eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:59:56, skipping insertion in model container [2021-11-25 17:59:56,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:59:56" (1/1) ... [2021-11-25 17:59:56,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 17:59:56,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:00:01,124 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_68fbdf94-3b6a-4aaf-9c7f-71736207422f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2021-11-25 18:00:01,128 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_68fbdf94-3b6a-4aaf-9c7f-71736207422f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2021-11-25 18:00:01,142 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:00:01,206 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:00:02,472 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_68fbdf94-3b6a-4aaf-9c7f-71736207422f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395259,395272] [2021-11-25 18:00:02,473 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_68fbdf94-3b6a-4aaf-9c7f-71736207422f/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i[395404,395417] [2021-11-25 18:00:02,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:00:02,875 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:00:02,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:02 WrapperNode [2021-11-25 18:00:02,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:00:02,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:00:02,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:00:02,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:00:02,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:02" (1/1) ... [2021-11-25 18:00:03,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:02" (1/1) ... [2021-11-25 18:00:03,237 INFO L137 Inliner]: procedures = 493, calls = 2689, calls flagged for inlining = 240, calls inlined = 225, statements flattened = 5114 [2021-11-25 18:00:03,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:00:03,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:00:03,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:00:03,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:00:03,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:02" (1/1) ... [2021-11-25 18:00:03,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:02" (1/1) ... [2021-11-25 18:00:03,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:02" (1/1) ... [2021-11-25 18:00:03,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:02" (1/1) ... [2021-11-25 18:00:03,541 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:02" (1/1) ... [2021-11-25 18:00:03,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:02" (1/1) ... [2021-11-25 18:00:03,622 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:02" (1/1) ... [2021-11-25 18:00:03,662 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:00:03,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:00:03,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:00:03,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:00:03,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:02" (1/1) ... [2021-11-25 18:00:03,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:00:03,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fbdf94-3b6a-4aaf-9c7f-71736207422f/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:00:03,698 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fbdf94-3b6a-4aaf-9c7f-71736207422f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:00:03,714 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_68fbdf94-3b6a-4aaf-9c7f-71736207422f/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:00:03,751 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2021-11-25 18:00:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2021-11-25 18:00:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-25 18:00:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-25 18:00:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_crc_length [2021-11-25 18:00:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_crc_length [2021-11-25 18:00:03,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-25 18:00:03,752 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-25 18:00:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2021-11-25 18:00:03,753 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2021-11-25 18:00:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2021-11-25 18:00:03,753 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2021-11-25 18:00:03,753 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-25 18:00:03,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-25 18:00:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2021-11-25 18:00:03,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2021-11-25 18:00:03,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 18:00:03,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 18:00:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_default [2021-11-25 18:00:03,755 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_default [2021-11-25 18:00:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2021-11-25 18:00:03,755 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2021-11-25 18:00:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_status [2021-11-25 18:00:03,755 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_status [2021-11-25 18:00:03,755 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2021-11-25 18:00:03,755 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2021-11-25 18:00:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set_1 [2021-11-25 18:00:03,756 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set_1 [2021-11-25 18:00:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-25 18:00:03,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-25 18:00:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2021-11-25 18:00:03,756 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2021-11-25 18:00:03,756 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_watchdog [2021-11-25 18:00:03,757 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_watchdog [2021-11-25 18:00:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2021-11-25 18:00:03,757 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2021-11-25 18:00:03,757 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2021-11-25 18:00:03,757 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2021-11-25 18:00:03,758 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2021-11-25 18:00:03,758 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2021-11-25 18:00:03,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-25 18:00:03,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-25 18:00:03,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-25 18:00:03,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-25 18:00:03,759 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2021-11-25 18:00:03,759 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2021-11-25 18:00:03,759 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_get_link_status [2021-11-25 18:00:03,759 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_get_link_status [2021-11-25 18:00:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:00:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-25 18:00:03,760 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-25 18:00:03,760 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-25 18:00:03,760 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-25 18:00:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 18:00:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-25 18:00:03,761 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-25 18:00:03,761 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_default [2021-11-25 18:00:03,761 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_default [2021-11-25 18:00:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_clock [2021-11-25 18:00:03,762 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_clock [2021-11-25 18:00:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 18:00:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-25 18:00:03,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-25 18:00:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2021-11-25 18:00:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2021-11-25 18:00:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:00:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-11-25 18:00:03,763 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-11-25 18:00:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-25 18:00:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-25 18:00:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-25 18:00:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-25 18:00:03,764 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_default [2021-11-25 18:00:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_default [2021-11-25 18:00:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-25 18:00:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-25 18:00:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-25 18:00:03,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-25 18:00:03,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-25 18:00:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-25 18:00:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2021-11-25 18:00:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2021-11-25 18:00:03,766 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2021-11-25 18:00:03,766 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2021-11-25 18:00:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-25 18:00:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-25 18:00:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-25 18:00:03,767 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-25 18:00:03,767 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_crc_length [2021-11-25 18:00:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_crc_length [2021-11-25 18:00:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2021-11-25 18:00:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2021-11-25 18:00:03,768 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-11-25 18:00:03,768 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-11-25 18:00:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2021-11-25 18:00:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2021-11-25 18:00:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 18:00:03,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-25 18:00:03,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-25 18:00:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-25 18:00:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-25 18:00:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:00:03,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-25 18:00:03,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-25 18:00:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-25 18:00:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-25 18:00:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2021-11-25 18:00:03,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lmc_lock_of_lmc___softc [2021-11-25 18:00:03,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 18:00:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2021-11-25 18:00:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2021-11-25 18:00:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:00:03,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 18:00:03,772 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-25 18:00:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-25 18:00:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:00:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-25 18:00:03,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-25 18:00:03,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-25 18:00:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-25 18:00:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-25 18:00:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_init [2021-11-25 18:00:03,774 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_init [2021-11-25 18:00:03,774 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-25 18:00:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-25 18:00:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2021-11-25 18:00:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2021-11-25 18:00:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-25 18:00:03,775 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-25 18:00:03,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-25 18:00:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-25 18:00:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_watchdog [2021-11-25 18:00:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_watchdog [2021-11-25 18:00:03,776 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_status [2021-11-25 18:00:03,776 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_status [2021-11-25 18:00:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2021-11-25 18:00:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2021-11-25 18:00:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_clock [2021-11-25 18:00:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_clock [2021-11-25 18:00:03,777 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-25 18:00:03,777 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-25 18:00:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:00:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:00:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2021-11-25 18:00:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2021-11-25 18:00:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 18:00:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 18:00:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-25 18:00:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-25 18:00:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2021-11-25 18:00:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_lmc_driver_exit_17_2 [2021-11-25 18:00:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-25 18:00:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-25 18:00:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_get_link_status [2021-11-25 18:00:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_get_link_status [2021-11-25 18:00:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2021-11-25 18:00:03,780 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2021-11-25 18:00:03,780 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_status [2021-11-25 18:00:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_status [2021-11-25 18:00:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 18:00:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 18:00:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_get_link_status [2021-11-25 18:00:03,781 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_get_link_status [2021-11-25 18:00:03,781 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_init [2021-11-25 18:00:03,782 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_init [2021-11-25 18:00:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-25 18:00:03,782 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-25 18:00:03,782 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2021-11-25 18:00:03,782 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2021-11-25 18:00:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_init [2021-11-25 18:00:03,783 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_init [2021-11-25 18:00:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2021-11-25 18:00:03,783 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2021-11-25 18:00:03,783 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-25 18:00:03,783 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-25 18:00:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:00:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2021-11-25 18:00:03,784 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2021-11-25 18:00:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2021-11-25 18:00:03,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lmc_lock_of_lmc___softc [2021-11-25 18:00:03,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 18:00:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-25 18:00:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-25 18:00:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2021-11-25 18:00:03,785 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2021-11-25 18:00:03,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 18:00:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-25 18:00:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-25 18:00:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_speed [2021-11-25 18:00:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_speed [2021-11-25 18:00:03,786 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_crc_length [2021-11-25 18:00:03,786 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_crc_length [2021-11-25 18:00:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:00:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-25 18:00:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2021-11-25 18:00:03,787 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2021-11-25 18:00:03,787 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2021-11-25 18:00:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2021-11-25 18:00:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-25 18:00:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-25 18:00:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-25 18:00:03,788 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-25 18:00:03,788 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2021-11-25 18:00:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2021-11-25 18:00:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2021-11-25 18:00:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2021-11-25 18:00:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-25 18:00:03,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-25 18:00:03,789 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-25 18:00:03,790 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-25 18:00:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-25 18:00:03,790 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-25 18:00:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_link_status [2021-11-25 18:00:03,790 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_link_status [2021-11-25 18:00:03,790 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_watchdog [2021-11-25 18:00:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_watchdog [2021-11-25 18:00:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 18:00:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 18:00:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_watchdog [2021-11-25 18:00:03,791 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_watchdog [2021-11-25 18:00:03,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:00:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-25 18:00:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-25 18:00:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-25 18:00:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-25 18:00:03,792 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_link_status [2021-11-25 18:00:03,792 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_link_status [2021-11-25 18:00:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_init [2021-11-25 18:00:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_init [2021-11-25 18:00:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2021-11-25 18:00:03,793 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2021-11-25 18:00:03,793 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_default [2021-11-25 18:00:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_default [2021-11-25 18:00:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-25 18:00:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-25 18:00:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_crc_length [2021-11-25 18:00:03,794 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_crc_length [2021-11-25 18:00:03,794 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_hssi_set_clock [2021-11-25 18:00:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_hssi_set_clock [2021-11-25 18:00:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-25 18:00:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-25 18:00:03,795 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dummy_set2_1 [2021-11-25 18:00:03,795 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dummy_set2_1 [2021-11-25 18:00:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2021-11-25 18:00:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2021-11-25 18:00:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-25 18:00:03,796 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-25 18:00:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:00:03,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 18:00:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-25 18:00:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-25 18:00:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-25 18:00:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-25 18:00:03,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-25 18:00:03,797 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-11-25 18:00:03,798 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-11-25 18:00:04,763 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:00:04,771 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:00:05,226 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-25 18:00:07,029 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call #t~mem1244#1.base, #t~mem1244#1.offset := read~$Pointer$(~sc#1.base, 141 + ~sc#1.offset, 8); [2021-11-25 18:00:07,029 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L12895: SUMMARY for call lmc_trace(#t~mem1244#1.base, #t~mem1244#1.offset, 129, 0); srcloc: null [2021-11-25 18:00:07,030 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L12895-1: havoc #t~mem1244#1.base, #t~mem1244#1.offset; [2021-11-25 18:00:10,985 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-25 18:00:11,111 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:00:12,675 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:00:12,676 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 18:00:12,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:12 BoogieIcfgContainer [2021-11-25 18:00:12,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:00:12,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:00:12,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:00:12,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:00:12,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:59:56" (1/3) ... [2021-11-25 18:00:12,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504b2f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:00:12, skipping insertion in model container [2021-11-25 18:00:12,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:00:02" (2/3) ... [2021-11-25 18:00:12,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504b2f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:00:12, skipping insertion in model container [2021-11-25 18:00:12,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:00:12" (3/3) ... [2021-11-25 18:00:12,691 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wan-lmc-lmc.cil.i [2021-11-25 18:00:12,696 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:00:12,697 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:00:12,765 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:00:12,773 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 18:00:12,773 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:00:12,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 2010 states, 1113 states have (on average 1.311769991015274) internal successors, (1460), 1181 states have internal predecessors, (1460), 777 states have call successors, (777), 120 states have call predecessors, (777), 119 states have return successors, (770), 727 states have call predecessors, (770), 770 states have call successors, (770) [2021-11-25 18:00:12,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-25 18:00:12,913 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:12,914 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:00:12,914 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:00:12,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:12,920 INFO L85 PathProgramCache]: Analyzing trace with hash 648889085, now seen corresponding path program 1 times [2021-11-25 18:00:12,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:12,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018656817] [2021-11-25 18:00:12,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:12,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:13,801 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2021-11-25 18:00:13,802 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:13,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018656817] [2021-11-25 18:00:13,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018656817] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:13,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:13,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:00:13,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571822669] [2021-11-25 18:00:13,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:13,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:00:13,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:13,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:00:13,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:00:13,852 INFO L87 Difference]: Start difference. First operand has 2010 states, 1113 states have (on average 1.311769991015274) internal successors, (1460), 1181 states have internal predecessors, (1460), 777 states have call successors, (777), 120 states have call predecessors, (777), 119 states have return successors, (770), 727 states have call predecessors, (770), 770 states have call successors, (770) Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-25 18:00:18,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:18,108 INFO L93 Difference]: Finished difference Result 5785 states and 8722 transitions. [2021-11-25 18:00:18,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:00:18,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 189 [2021-11-25 18:00:18,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:18,201 INFO L225 Difference]: With dead ends: 5785 [2021-11-25 18:00:18,201 INFO L226 Difference]: Without dead ends: 3746 [2021-11-25 18:00:18,241 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 18:00:18,252 INFO L933 BasicCegarLoop]: 3421 mSDtfsCounter, 2683 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2683 SdHoareTripleChecker+Valid, 6031 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:18,254 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2683 Valid, 6031 Invalid, 772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-25 18:00:18,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2021-11-25 18:00:18,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3743. [2021-11-25 18:00:18,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3743 states, 2102 states have (on average 1.30732635585157) internal successors, (2748), 2233 states have internal predecessors, (2748), 1413 states have call successors, (1413), 227 states have call predecessors, (1413), 227 states have return successors, (1413), 1327 states have call predecessors, (1413), 1413 states have call successors, (1413) [2021-11-25 18:00:18,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3743 states to 3743 states and 5574 transitions. [2021-11-25 18:00:18,798 INFO L78 Accepts]: Start accepts. Automaton has 3743 states and 5574 transitions. Word has length 189 [2021-11-25 18:00:18,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:18,803 INFO L470 AbstractCegarLoop]: Abstraction has 3743 states and 5574 transitions. [2021-11-25 18:00:18,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2021-11-25 18:00:18,805 INFO L276 IsEmpty]: Start isEmpty. Operand 3743 states and 5574 transitions. [2021-11-25 18:00:18,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-25 18:00:18,847 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:18,848 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:00:18,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:00:18,849 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:00:18,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:18,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1591075597, now seen corresponding path program 1 times [2021-11-25 18:00:18,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:18,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501336249] [2021-11-25 18:00:18,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:18,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:19,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:19,306 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2021-11-25 18:00:19,306 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:19,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501336249] [2021-11-25 18:00:19,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501336249] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:19,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:19,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:00:19,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538659940] [2021-11-25 18:00:19,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:19,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:00:19,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:19,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:00:19,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:00:19,313 INFO L87 Difference]: Start difference. First operand 3743 states and 5574 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-25 18:00:22,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:22,708 INFO L93 Difference]: Finished difference Result 10501 states and 15613 transitions. [2021-11-25 18:00:22,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:00:22,709 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 238 [2021-11-25 18:00:22,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:22,804 INFO L225 Difference]: With dead ends: 10501 [2021-11-25 18:00:22,805 INFO L226 Difference]: Without dead ends: 6789 [2021-11-25 18:00:22,842 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 18:00:22,849 INFO L933 BasicCegarLoop]: 3224 mSDtfsCounter, 2384 mSDsluCounter, 2894 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2384 SdHoareTripleChecker+Valid, 5786 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:22,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2384 Valid, 5786 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-25 18:00:22,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6789 states. [2021-11-25 18:00:23,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6789 to 6780. [2021-11-25 18:00:23,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6780 states, 3823 states have (on average 1.3055192257389485) internal successors, (4991), 4069 states have internal predecessors, (4991), 2520 states have call successors, (2520), 436 states have call predecessors, (2520), 436 states have return successors, (2556), 2349 states have call predecessors, (2556), 2520 states have call successors, (2556) [2021-11-25 18:00:23,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6780 states to 6780 states and 10067 transitions. [2021-11-25 18:00:23,408 INFO L78 Accepts]: Start accepts. Automaton has 6780 states and 10067 transitions. Word has length 238 [2021-11-25 18:00:23,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:23,409 INFO L470 AbstractCegarLoop]: Abstraction has 6780 states and 10067 transitions. [2021-11-25 18:00:23,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-25 18:00:23,410 INFO L276 IsEmpty]: Start isEmpty. Operand 6780 states and 10067 transitions. [2021-11-25 18:00:23,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-25 18:00:23,436 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:23,437 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 5, 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] [2021-11-25 18:00:23,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:00:23,439 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:00:23,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:23,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1814113133, now seen corresponding path program 1 times [2021-11-25 18:00:23,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:23,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189429503] [2021-11-25 18:00:23,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:23,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:23,791 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 896 trivial. 0 not checked. [2021-11-25 18:00:23,791 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:23,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189429503] [2021-11-25 18:00:23,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189429503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:23,793 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:23,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:00:23,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022788602] [2021-11-25 18:00:23,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:23,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:00:23,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:23,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:00:23,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:00:23,796 INFO L87 Difference]: Start difference. First operand 6780 states and 10067 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-25 18:00:27,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:27,145 INFO L93 Difference]: Finished difference Result 19762 states and 29366 transitions. [2021-11-25 18:00:27,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:00:27,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 248 [2021-11-25 18:00:27,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:27,322 INFO L225 Difference]: With dead ends: 19762 [2021-11-25 18:00:27,322 INFO L226 Difference]: Without dead ends: 13013 [2021-11-25 18:00:27,391 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 18:00:27,395 INFO L933 BasicCegarLoop]: 3314 mSDtfsCounter, 2690 mSDsluCounter, 2929 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 5903 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:27,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2690 Valid, 5903 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-25 18:00:27,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13013 states. [2021-11-25 18:00:28,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13013 to 13003. [2021-11-25 18:00:28,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13003 states, 7297 states have (on average 1.3031382760038372) internal successors, (9509), 7781 states have internal predecessors, (9509), 4853 states have call successors, (4853), 852 states have call predecessors, (4853), 852 states have return successors, (4962), 4503 states have call predecessors, (4962), 4853 states have call successors, (4962) [2021-11-25 18:00:28,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13003 states to 13003 states and 19324 transitions. [2021-11-25 18:00:28,684 INFO L78 Accepts]: Start accepts. Automaton has 13003 states and 19324 transitions. Word has length 248 [2021-11-25 18:00:28,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:28,685 INFO L470 AbstractCegarLoop]: Abstraction has 13003 states and 19324 transitions. [2021-11-25 18:00:28,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2021-11-25 18:00:28,687 INFO L276 IsEmpty]: Start isEmpty. Operand 13003 states and 19324 transitions. [2021-11-25 18:00:28,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-25 18:00:28,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:28,710 INFO L514 BasicCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 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] [2021-11-25 18:00:28,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 18:00:28,710 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:00:28,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:28,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1456206894, now seen corresponding path program 1 times [2021-11-25 18:00:28,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:28,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063351891] [2021-11-25 18:00:28,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:28,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1005 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2021-11-25 18:00:29,000 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:29,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063351891] [2021-11-25 18:00:29,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063351891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:29,001 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:29,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:00:29,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588305146] [2021-11-25 18:00:29,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:29,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:00:29,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:29,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:00:29,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:00:29,004 INFO L87 Difference]: Start difference. First operand 13003 states and 19324 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:00:33,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 18:00:34,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:34,207 INFO L93 Difference]: Finished difference Result 32121 states and 47771 transitions. [2021-11-25 18:00:34,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:00:34,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 238 [2021-11-25 18:00:34,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:34,396 INFO L225 Difference]: With dead ends: 32121 [2021-11-25 18:00:34,396 INFO L226 Difference]: Without dead ends: 19149 [2021-11-25 18:00:34,505 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 18:00:34,508 INFO L933 BasicCegarLoop]: 4905 mSDtfsCounter, 2630 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2630 SdHoareTripleChecker+Valid, 7445 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:34,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2630 Valid, 7445 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2021-11-25 18:00:34,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19149 states. [2021-11-25 18:00:35,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19149 to 19143. [2021-11-25 18:00:35,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19143 states, 10753 states have (on average 1.3029852134288105) internal successors, (14011), 11473 states have internal predecessors, (14011), 7133 states have call successors, (7133), 1256 states have call predecessors, (7133), 1256 states have return successors, (7284), 6609 states have call predecessors, (7284), 7133 states have call successors, (7284) [2021-11-25 18:00:36,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19143 states to 19143 states and 28428 transitions. [2021-11-25 18:00:36,151 INFO L78 Accepts]: Start accepts. Automaton has 19143 states and 28428 transitions. Word has length 238 [2021-11-25 18:00:36,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:36,153 INFO L470 AbstractCegarLoop]: Abstraction has 19143 states and 28428 transitions. [2021-11-25 18:00:36,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-25 18:00:36,153 INFO L276 IsEmpty]: Start isEmpty. Operand 19143 states and 28428 transitions. [2021-11-25 18:00:36,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-11-25 18:00:36,187 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:36,187 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 12, 3, 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] [2021-11-25 18:00:36,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 18:00:36,188 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:00:36,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:36,188 INFO L85 PathProgramCache]: Analyzing trace with hash -78506254, now seen corresponding path program 1 times [2021-11-25 18:00:36,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:36,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186471282] [2021-11-25 18:00:36,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:36,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:36,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:36,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2021-11-25 18:00:36,465 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:36,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186471282] [2021-11-25 18:00:36,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186471282] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:36,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:36,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:00:36,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619636094] [2021-11-25 18:00:36,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:36,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:00:36,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:36,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:00:36,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:00:36,468 INFO L87 Difference]: Start difference. First operand 19143 states and 28428 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-25 18:00:41,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:41,498 INFO L93 Difference]: Finished difference Result 56423 states and 83743 transitions. [2021-11-25 18:00:41,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:00:41,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 328 [2021-11-25 18:00:41,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:41,784 INFO L225 Difference]: With dead ends: 56423 [2021-11-25 18:00:41,784 INFO L226 Difference]: Without dead ends: 37311 [2021-11-25 18:00:42,062 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 18:00:42,064 INFO L933 BasicCegarLoop]: 3529 mSDtfsCounter, 2843 mSDsluCounter, 2870 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2843 SdHoareTripleChecker+Valid, 6064 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:42,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2843 Valid, 6064 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-25 18:00:42,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37311 states. [2021-11-25 18:00:44,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37311 to 37253. [2021-11-25 18:00:44,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37253 states, 20921 states have (on average 1.3041919602313465) internal successors, (27285), 22357 states have internal predecessors, (27285), 13855 states have call successors, (13855), 2476 states have call predecessors, (13855), 2476 states have return successors, (14152), 12799 states have call predecessors, (14152), 13855 states have call successors, (14152) [2021-11-25 18:00:45,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37253 states to 37253 states and 55292 transitions. [2021-11-25 18:00:45,264 INFO L78 Accepts]: Start accepts. Automaton has 37253 states and 55292 transitions. Word has length 328 [2021-11-25 18:00:45,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:45,265 INFO L470 AbstractCegarLoop]: Abstraction has 37253 states and 55292 transitions. [2021-11-25 18:00:45,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-25 18:00:45,266 INFO L276 IsEmpty]: Start isEmpty. Operand 37253 states and 55292 transitions. [2021-11-25 18:00:45,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-11-25 18:00:45,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:45,343 INFO L514 BasicCegarLoop]: trace histogram [17, 15, 15, 15, 15, 15, 15, 12, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:00:45,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 18:00:45,344 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:00:45,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:45,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1780311672, now seen corresponding path program 1 times [2021-11-25 18:00:45,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:45,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397087291] [2021-11-25 18:00:45,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:45,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:45,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1062 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 1051 trivial. 0 not checked. [2021-11-25 18:00:45,644 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:45,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397087291] [2021-11-25 18:00:45,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397087291] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:45,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:45,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:00:45,646 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906112459] [2021-11-25 18:00:45,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:45,647 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:00:45,647 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:45,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:00:45,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:00:45,648 INFO L87 Difference]: Start difference. First operand 37253 states and 55292 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, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-25 18:00:51,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:00:51,384 INFO L93 Difference]: Finished difference Result 111661 states and 165724 transitions. [2021-11-25 18:00:51,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:00:51,385 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, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 350 [2021-11-25 18:00:51,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:00:52,277 INFO L225 Difference]: With dead ends: 111661 [2021-11-25 18:00:52,277 INFO L226 Difference]: Without dead ends: 74439 [2021-11-25 18:00:52,515 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 18:00:52,517 INFO L933 BasicCegarLoop]: 3753 mSDtfsCounter, 2870 mSDsluCounter, 2927 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 6340 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-25 18:00:52,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2870 Valid, 6340 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-25 18:00:52,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74439 states. [2021-11-25 18:00:56,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74439 to 74389. [2021-11-25 18:00:57,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74389 states, 41765 states have (on average 1.30360349575003) internal successors, (54445), 44673 states have internal predecessors, (54445), 27671 states have call successors, (27671), 4952 states have call predecessors, (27671), 4952 states have return successors, (28265), 25523 states have call predecessors, (28265), 27671 states have call successors, (28265) [2021-11-25 18:00:58,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74389 states to 74389 states and 110381 transitions. [2021-11-25 18:00:58,125 INFO L78 Accepts]: Start accepts. Automaton has 74389 states and 110381 transitions. Word has length 350 [2021-11-25 18:00:58,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:00:58,126 INFO L470 AbstractCegarLoop]: Abstraction has 74389 states and 110381 transitions. [2021-11-25 18:00:58,126 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, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-25 18:00:58,126 INFO L276 IsEmpty]: Start isEmpty. Operand 74389 states and 110381 transitions. [2021-11-25 18:00:58,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-11-25 18:00:58,218 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:00:58,218 INFO L514 BasicCegarLoop]: trace histogram [21, 15, 15, 15, 15, 15, 15, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-25 18:00:58,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 18:00:58,219 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:00:58,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:00:58,220 INFO L85 PathProgramCache]: Analyzing trace with hash -89679561, now seen corresponding path program 1 times [2021-11-25 18:00:58,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:00:58,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681144994] [2021-11-25 18:00:58,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:00:58,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:00:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:00:59,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1193 trivial. 0 not checked. [2021-11-25 18:00:59,041 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:00:59,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681144994] [2021-11-25 18:00:59,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681144994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:00:59,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:00:59,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 18:00:59,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166493296] [2021-11-25 18:00:59,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:00:59,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:00:59,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:00:59,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:00:59,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:00:59,045 INFO L87 Difference]: Start difference. First operand 74389 states and 110381 transitions. Second operand has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-25 18:01:13,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:01:13,252 INFO L93 Difference]: Finished difference Result 128959 states and 191594 transitions. [2021-11-25 18:01:13,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-25 18:01:13,252 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 300 [2021-11-25 18:01:13,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:01:14,651 INFO L225 Difference]: With dead ends: 128959 [2021-11-25 18:01:14,652 INFO L226 Difference]: Without dead ends: 128957 [2021-11-25 18:01:14,723 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-25 18:01:14,725 INFO L933 BasicCegarLoop]: 3505 mSDtfsCounter, 2209 mSDsluCounter, 13517 mSDsCounter, 0 mSdLazyCounter, 3313 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 15399 SdHoareTripleChecker+Invalid, 3317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 3313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2021-11-25 18:01:14,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2210 Valid, 15399 Invalid, 3317 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 3313 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2021-11-25 18:01:14,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128957 states. [2021-11-25 18:01:22,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128957 to 128753. [2021-11-25 18:01:22,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128753 states, 72901 states have (on average 1.3156609648701665) internal successors, (95913), 78189 states have internal predecessors, (95913), 47167 states have call successors, (47167), 8776 states have call predecessors, (47167), 8684 states have return successors, (48213), 42927 states have call predecessors, (48213), 47167 states have call successors, (48213) [2021-11-25 18:01:24,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128753 states to 128753 states and 191293 transitions. [2021-11-25 18:01:24,065 INFO L78 Accepts]: Start accepts. Automaton has 128753 states and 191293 transitions. Word has length 300 [2021-11-25 18:01:24,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:01:24,065 INFO L470 AbstractCegarLoop]: Abstraction has 128753 states and 191293 transitions. [2021-11-25 18:01:24,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (33), 2 states have call predecessors, (33), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-11-25 18:01:24,066 INFO L276 IsEmpty]: Start isEmpty. Operand 128753 states and 191293 transitions. [2021-11-25 18:01:24,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-11-25 18:01:24,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:01:24,231 INFO L514 BasicCegarLoop]: trace histogram [18, 15, 15, 15, 15, 15, 15, 12, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:01:24,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-25 18:01:24,232 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:01:24,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:01:24,234 INFO L85 PathProgramCache]: Analyzing trace with hash 891345623, now seen corresponding path program 1 times [2021-11-25 18:01:24,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:01:24,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551424802] [2021-11-25 18:01:24,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:01:24,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:01:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:01:24,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2021-11-25 18:01:24,495 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:01:24,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551424802] [2021-11-25 18:01:24,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551424802] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:01:24,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:01:24,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:01:24,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29152470] [2021-11-25 18:01:24,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:01:24,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:01:24,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:01:24,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:01:24,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:01:24,498 INFO L87 Difference]: Start difference. First operand 128753 states and 191293 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (48), 3 states have call predecessors, (48), 3 states have call successors, (48)