./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P --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 45acb2c796116b4df93c0e090b1e242e2e986b4d7b1240180279cd2f8660db26 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 22:49:02,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 22:49:02,758 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 22:49:02,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 22:49:02,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 22:49:02,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 22:49:02,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 22:49:02,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 22:49:02,799 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 22:49:02,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 22:49:02,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 22:49:02,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 22:49:02,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 22:49:02,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 22:49:02,806 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 22:49:02,807 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 22:49:02,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 22:49:02,810 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 22:49:02,812 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 22:49:02,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 22:49:02,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 22:49:02,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 22:49:02,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 22:49:02,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 22:49:02,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 22:49:02,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 22:49:02,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 22:49:02,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 22:49:02,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 22:49:02,827 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 22:49:02,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 22:49:02,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 22:49:02,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 22:49:02,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 22:49:02,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 22:49:02,832 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 22:49:02,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 22:49:02,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 22:49:02,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 22:49:02,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 22:49:02,843 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 22:49:02,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-20 22:49:02,894 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 22:49:02,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 22:49:02,894 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 22:49:02,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 22:49:02,895 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 22:49:02,895 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 22:49:02,896 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 22:49:02,896 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 22:49:02,896 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 22:49:02,896 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 22:49:02,897 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 22:49:02,897 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 22:49:02,897 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 22:49:02,897 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 22:49:02,897 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 22:49:02,898 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 22:49:02,898 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 22:49:02,898 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 22:49:02,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 22:49:02,902 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 22:49:02,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 22:49:02,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 22:49:02,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 22:49:02,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 22:49:02,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 22:49:02,904 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 22:49:02,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 22:49:02,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 22:49:02,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 22:49:02,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:49:02,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 22:49:02,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 22:49:02,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 22:49:02,907 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 22:49:02,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 22:49:02,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 22:49:02,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 22:49:02,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 22:49:02,909 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_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45acb2c796116b4df93c0e090b1e242e2e986b4d7b1240180279cd2f8660db26 [2021-11-20 22:49:03,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 22:49:03,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 22:49:03,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 22:49:03,251 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 22:49:03,252 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 22:49:03,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-20 22:49:03,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/data/a2dea94ef/09fea8156a374f49aa58f2e21b0496fd/FLAG741873e3d [2021-11-20 22:49:04,366 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 22:49:04,368 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-20 22:49:04,432 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/data/a2dea94ef/09fea8156a374f49aa58f2e21b0496fd/FLAG741873e3d [2021-11-20 22:49:04,679 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/data/a2dea94ef/09fea8156a374f49aa58f2e21b0496fd [2021-11-20 22:49:04,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 22:49:04,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 22:49:04,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 22:49:04,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 22:49:04,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 22:49:04,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:04" (1/1) ... [2021-11-20 22:49:04,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5473712b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:04, skipping insertion in model container [2021-11-20 22:49:04,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:49:04" (1/1) ... [2021-11-20 22:49:04,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 22:49:04,909 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 22:49:09,808 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_a3909205-3674-4d8d-bdaa-dea4d5017f80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480731,480744] [2021-11-20 22:49:09,812 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_a3909205-3674-4d8d-bdaa-dea4d5017f80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480876,480889] [2021-11-20 22:49:09,846 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:49:09,910 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 22:49:10,504 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_a3909205-3674-4d8d-bdaa-dea4d5017f80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480731,480744] [2021-11-20 22:49:10,505 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_a3909205-3674-4d8d-bdaa-dea4d5017f80/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i[480876,480889] [2021-11-20 22:49:10,509 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 22:49:10,701 INFO L208 MainTranslator]: Completed translation [2021-11-20 22:49:10,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:10 WrapperNode [2021-11-20 22:49:10,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 22:49:10,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 22:49:10,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 22:49:10,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 22:49:10,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:10" (1/1) ... [2021-11-20 22:49:10,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:10" (1/1) ... [2021-11-20 22:49:11,136 INFO L137 Inliner]: procedures = 543, calls = 4199, calls flagged for inlining = 248, calls inlined = 232, statements flattened = 8662 [2021-11-20 22:49:11,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 22:49:11,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 22:49:11,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 22:49:11,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 22:49:11,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:10" (1/1) ... [2021-11-20 22:49:11,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:10" (1/1) ... [2021-11-20 22:49:11,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:10" (1/1) ... [2021-11-20 22:49:11,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:10" (1/1) ... [2021-11-20 22:49:11,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:10" (1/1) ... [2021-11-20 22:49:11,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:10" (1/1) ... [2021-11-20 22:49:11,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:10" (1/1) ... [2021-11-20 22:49:11,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 22:49:11,771 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 22:49:11,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 22:49:11,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 22:49:11,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:10" (1/1) ... [2021-11-20 22:49:11,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 22:49:11,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 22:49:11,802 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 22:49:11,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3909205-3674-4d8d-bdaa-dea4d5017f80/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 22:49:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure disable_ast [2021-11-20 22:49:11,929 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_ast [2021-11-20 22:49:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2021-11-20 22:49:11,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2021-11-20 22:49:11,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 22:49:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 22:49:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-20 22:49:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-20 22:49:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 22:49:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 22:49:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure type4_infoblock [2021-11-20 22:49:11,930 INFO L138 BoogieDeclarations]: Found implementation of procedure type4_infoblock [2021-11-20 22:49:11,930 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_put_cache [2021-11-20 22:49:11,931 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_put_cache [2021-11-20 22:49:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-11-20 22:49:11,931 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-11-20 22:49:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_de4x5_private [2021-11-20 22:49:11,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_de4x5_private [2021-11-20 22:49:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-11-20 22:49:11,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_de4x5_private [2021-11-20 22:49:11,931 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_mii [2021-11-20 22:49:11,932 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_mii [2021-11-20 22:49:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_switch_mac_port [2021-11-20 22:49:11,932 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_switch_mac_port [2021-11-20 22:49:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-20 22:49:11,932 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-20 22:49:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure srom_latch [2021-11-20 22:49:11,932 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_latch [2021-11-20 22:49:11,932 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-20 22:49:11,933 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-20 22:49:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure build_setup_frame [2021-11-20 22:49:11,933 INFO L138 BoogieDeclarations]: Found implementation of procedure build_setup_frame [2021-11-20 22:49:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure type2_infoblock [2021-11-20 22:49:11,933 INFO L138 BoogieDeclarations]: Found implementation of procedure type2_infoblock [2021-11-20 22:49:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure type0_infoblock [2021-11-20 22:49:11,933 INFO L138 BoogieDeclarations]: Found implementation of procedure type0_infoblock [2021-11-20 22:49:11,933 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-11-20 22:49:11,934 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-11-20 22:49:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure DevicePresent [2021-11-20 22:49:11,934 INFO L138 BoogieDeclarations]: Found implementation of procedure DevicePresent [2021-11-20 22:49:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2021-11-20 22:49:11,934 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2021-11-20 22:49:11,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 22:49:11,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 22:49:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure dc21143_infoleaf [2021-11-20 22:49:11,935 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21143_infoleaf [2021-11-20 22:49:11,935 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2021-11-20 22:49:11,936 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2021-11-20 22:49:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 22:49:11,937 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 22:49:11,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 22:49:11,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 22:49:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2021-11-20 22:49:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_sw_reset [2021-11-20 22:49:11,938 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_sw_reset [2021-11-20 22:49:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 22:49:11,938 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2021-11-20 22:49:11,938 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2021-11-20 22:49:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-20 22:49:11,939 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-20 22:49:11,939 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-11-20 22:49:11,940 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-11-20 22:49:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure is_spd_100 [2021-11-20 22:49:11,940 INFO L138 BoogieDeclarations]: Found implementation of procedure is_spd_100 [2021-11-20 22:49:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 22:49:11,940 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 22:49:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 22:49:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-20 22:49:11,940 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-20 22:49:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_mii [2021-11-20 22:49:11,941 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_mii [2021-11-20 22:49:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_rx_buffs [2021-11-20 22:49:11,941 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_rx_buffs [2021-11-20 22:49:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-20 22:49:11,942 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-20 22:49:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-20 22:49:11,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-20 22:49:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-20 22:49:11,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2021-11-20 22:49:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 22:49:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 22:49:11,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 22:49:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 22:49:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-20 22:49:11,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-20 22:49:11,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 22:49:11,944 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 22:49:11,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-20 22:49:11,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-20 22:49:11,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 22:49:11,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 22:49:11,944 INFO L130 BoogieDeclarations]: Found specification of procedure ping_media [2021-11-20 22:49:11,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ping_media [2021-11-20 22:49:11,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-20 22:49:11,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-20 22:49:11,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 22:49:11,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 22:49:11,945 INFO L130 BoogieDeclarations]: Found specification of procedure srom_autoconf [2021-11-20 22:49:11,945 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_autoconf [2021-11-20 22:49:11,945 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-20 22:49:11,945 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-20 22:49:11,945 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-20 22:49:11,946 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-20 22:49:11,946 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_tx [2021-11-20 22:49:11,946 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_tx [2021-11-20 22:49:11,946 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-20 22:49:11,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-20 22:49:11,946 INFO L130 BoogieDeclarations]: Found specification of procedure srom_rd [2021-11-20 22:49:11,946 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_rd [2021-11-20 22:49:11,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 22:49:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-20 22:49:11,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-20 22:49:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-20 22:49:11,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-20 22:49:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure SetMulticastFilter [2021-11-20 22:49:11,947 INFO L138 BoogieDeclarations]: Found implementation of procedure SetMulticastFilter [2021-11-20 22:49:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 22:49:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ioctl [2021-11-20 22:49:11,947 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ioctl [2021-11-20 22:49:11,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 22:49:11,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 22:49:11,948 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-20 22:49:11,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-20 22:49:11,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 22:49:11,948 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 22:49:11,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-20 22:49:11,948 INFO L130 BoogieDeclarations]: Found specification of procedure getfrom_srom [2021-11-20 22:49:11,948 INFO L138 BoogieDeclarations]: Found implementation of procedure getfrom_srom [2021-11-20 22:49:11,948 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-11-20 22:49:11,948 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-11-20 22:49:11,949 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 22:49:11,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 22:49:11,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-20 22:49:11,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-20 22:49:11,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-20 22:49:11,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-20 22:49:11,949 INFO L130 BoogieDeclarations]: Found specification of procedure mii_swap [2021-11-20 22:49:11,949 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_swap [2021-11-20 22:49:11,949 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_reset_phy [2021-11-20 22:49:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_reset_phy [2021-11-20 22:49:11,950 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_putb_cache [2021-11-20 22:49:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_putb_cache [2021-11-20 22:49:11,950 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-20 22:49:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-20 22:49:11,950 INFO L130 BoogieDeclarations]: Found specification of procedure dc21142_infoleaf [2021-11-20 22:49:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21142_infoleaf [2021-11-20 22:49:11,950 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-20 22:49:11,950 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-20 22:49:11,951 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_stats [2021-11-20 22:49:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_stats [2021-11-20 22:49:11,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 22:49:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 22:49:11,951 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-11-20 22:49:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-11-20 22:49:11,951 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init_connection [2021-11-20 22:49:11,951 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init_connection [2021-11-20 22:49:11,951 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wr [2021-11-20 22:49:11,952 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wr [2021-11-20 22:49:11,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 22:49:11,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 22:49:11,952 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_state [2021-11-20 22:49:11,952 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_state [2021-11-20 22:49:11,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-20 22:49:11,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-20 22:49:11,952 INFO L130 BoogieDeclarations]: Found specification of procedure type3_infoblock [2021-11-20 22:49:11,952 INFO L138 BoogieDeclarations]: Found implementation of procedure type3_infoblock [2021-11-20 22:49:11,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 22:49:11,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 22:49:11,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 22:49:11,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 22:49:11,953 INFO L130 BoogieDeclarations]: Found specification of procedure reset_init_sia [2021-11-20 22:49:11,953 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_init_sia [2021-11-20 22:49:11,953 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-20 22:49:11,953 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-20 22:49:11,953 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_alloc_rx_buff [2021-11-20 22:49:11,954 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_alloc_rx_buff [2021-11-20 22:49:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure test_for_100Mb [2021-11-20 22:49:11,954 INFO L138 BoogieDeclarations]: Found implementation of procedure test_for_100Mb [2021-11-20 22:49:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-20 22:49:11,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-20 22:49:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure type5_infoblock [2021-11-20 22:49:11,954 INFO L138 BoogieDeclarations]: Found implementation of procedure type5_infoblock [2021-11-20 22:49:11,954 INFO L130 BoogieDeclarations]: Found specification of procedure load_packet [2021-11-20 22:49:11,954 INFO L138 BoogieDeclarations]: Found implementation of procedure load_packet [2021-11-20 22:49:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140m_autoconf [2021-11-20 22:49:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140m_autoconf [2021-11-20 22:49:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure is_100_up [2021-11-20 22:49:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure is_100_up [2021-11-20 22:49:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_open [2021-11-20 22:49:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_open [2021-11-20 22:49:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 22:49:11,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 22:49:11,955 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ta [2021-11-20 22:49:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ta [2021-11-20 22:49:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 22:49:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 22:49:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure dc21040_autoconf [2021-11-20 22:49:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21040_autoconf [2021-11-20 22:49:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2021-11-20 22:49:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2021-11-20 22:49:11,956 INFO L130 BoogieDeclarations]: Found specification of procedure test_mii_reg [2021-11-20 22:49:11,956 INFO L138 BoogieDeclarations]: Found implementation of procedure test_mii_reg [2021-11-20 22:49:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_cache_state [2021-11-20 22:49:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_cache_state [2021-11-20 22:49:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-20 22:49:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-20 22:49:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_pci_remove [2021-11-20 22:49:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_pci_remove [2021-11-20 22:49:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 22:49:11,957 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_media [2021-11-20 22:49:11,957 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_media [2021-11-20 22:49:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure autoconf_media [2021-11-20 22:49:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure autoconf_media [2021-11-20 22:49:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_autoconf [2021-11-20 22:49:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_autoconf [2021-11-20 22:49:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure mii_rd [2021-11-20 22:49:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_rd [2021-11-20 22:49:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 22:49:11,958 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_ast [2021-11-20 22:49:11,958 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_ast [2021-11-20 22:49:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le32 [2021-11-20 22:49:11,959 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le32 [2021-11-20 22:49:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-20 22:49:11,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u_char~0~X~$Pointer$~TO~int [2021-11-20 22:49:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 22:49:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-11-20 22:49:11,959 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-11-20 22:49:11,959 INFO L130 BoogieDeclarations]: Found specification of procedure is_10_up [2021-11-20 22:49:11,959 INFO L138 BoogieDeclarations]: Found implementation of procedure is_10_up [2021-11-20 22:49:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 22:49:11,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-20 22:49:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_byte [2021-11-20 22:49:11,960 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_byte [2021-11-20 22:49:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure is_anc_capable [2021-11-20 22:49:11,960 INFO L138 BoogieDeclarations]: Found implementation of procedure is_anc_capable [2021-11-20 22:49:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure type1_infoblock [2021-11-20 22:49:11,960 INFO L138 BoogieDeclarations]: Found implementation of procedure type1_infoblock [2021-11-20 22:49:11,960 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 22:49:11,961 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 22:49:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-11-20 22:49:11,961 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-11-20 22:49:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-20 22:49:11,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-20 22:49:11,961 INFO L130 BoogieDeclarations]: Found specification of procedure dc21140_infoleaf [2021-11-20 22:49:11,961 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21140_infoleaf [2021-11-20 22:49:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 22:49:11,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 22:49:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-20 22:49:11,962 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-20 22:49:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_queue_pkt [2021-11-20 22:49:11,962 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_queue_pkt [2021-11-20 22:49:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure test_media [2021-11-20 22:49:11,962 INFO L138 BoogieDeclarations]: Found implementation of procedure test_media [2021-11-20 22:49:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buffs [2021-11-20 22:49:11,962 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buffs [2021-11-20 22:49:11,962 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-11-20 22:49:11,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-11-20 22:49:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-20 22:49:11,963 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-20 22:49:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-20 22:49:11,963 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-20 22:49:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 22:49:11,963 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 22:49:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_init [2021-11-20 22:49:11,963 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_init [2021-11-20 22:49:11,963 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-11-20 22:49:11,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-11-20 22:49:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure dc21041_infoleaf [2021-11-20 22:49:11,964 INFO L138 BoogieDeclarations]: Found implementation of procedure dc21041_infoleaf [2021-11-20 22:49:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 22:49:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure srom_exec [2021-11-20 22:49:11,964 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_exec [2021-11-20 22:49:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 22:49:11,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 22:49:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure gep_wr [2021-11-20 22:49:11,964 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_wr [2021-11-20 22:49:11,964 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 22:49:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 22:49:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure sendto_srom [2021-11-20 22:49:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure sendto_srom [2021-11-20 22:49:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-20 22:49:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-20 22:49:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_96 [2021-11-20 22:49:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_96 [2021-11-20 22:49:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_get_cache [2021-11-20 22:49:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_get_cache [2021-11-20 22:49:11,965 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_suspect_state [2021-11-20 22:49:11,965 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_suspect_state [2021-11-20 22:49:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_dbg_mii [2021-11-20 22:49:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_dbg_mii [2021-11-20 22:49:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure compact_infoblock [2021-11-20 22:49:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure compact_infoblock [2021-11-20 22:49:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 22:49:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 22:49:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure gep_rd [2021-11-20 22:49:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure gep_rd [2021-11-20 22:49:11,966 INFO L130 BoogieDeclarations]: Found specification of procedure mii_address [2021-11-20 22:49:11,966 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_address [2021-11-20 22:49:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_free_tx_buff [2021-11-20 22:49:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_free_tx_buff [2021-11-20 22:49:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_setup_intr [2021-11-20 22:49:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_setup_intr [2021-11-20 22:49:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_save_skbs [2021-11-20 22:49:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_save_skbs [2021-11-20 22:49:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure dc2114x_autoconf [2021-11-20 22:49:11,967 INFO L138 BoogieDeclarations]: Found implementation of procedure dc2114x_autoconf [2021-11-20 22:49:11,967 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-11-20 22:49:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-11-20 22:49:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure srom_map_media [2021-11-20 22:49:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_map_media [2021-11-20 22:49:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_strncmp [2021-11-20 22:49:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_strncmp [2021-11-20 22:49:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-20 22:49:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-20 22:49:11,968 INFO L130 BoogieDeclarations]: Found specification of procedure de4x5_close [2021-11-20 22:49:11,968 INFO L138 BoogieDeclarations]: Found implementation of procedure de4x5_close [2021-11-20 22:49:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure yawn [2021-11-20 22:49:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure yawn [2021-11-20 22:49:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure mii_wdata [2021-11-20 22:49:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_wdata [2021-11-20 22:49:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 22:49:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 22:49:11,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 22:49:11,969 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-20 22:49:13,072 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 22:49:13,076 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 22:49:13,566 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 22:49:30,534 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-20 22:49:30,863 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 22:49:34,117 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 22:49:34,118 INFO L301 CfgBuilder]: Removed 17 assume(true) statements. [2021-11-20 22:49:34,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:34 BoogieIcfgContainer [2021-11-20 22:49:34,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 22:49:34,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 22:49:34,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 22:49:34,134 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 22:49:34,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:49:04" (1/3) ... [2021-11-20 22:49:34,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2b48b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:49:34, skipping insertion in model container [2021-11-20 22:49:34,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:49:10" (2/3) ... [2021-11-20 22:49:34,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2b48b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:49:34, skipping insertion in model container [2021-11-20 22:49:34,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:49:34" (3/3) ... [2021-11-20 22:49:34,138 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-de4x5.cil.i [2021-11-20 22:49:34,145 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 22:49:34,146 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 22:49:34,231 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 22:49:34,247 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 [2021-11-20 22:49:34,248 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 22:49:34,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 3043 states, 1909 states have (on average 1.3473022524882137) internal successors, (2572), 1969 states have internal predecessors, (2572), 997 states have call successors, (997), 153 states have call predecessors, (997), 152 states have return successors, (990), 976 states have call predecessors, (990), 990 states have call successors, (990) [2021-11-20 22:49:34,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-20 22:49:34,412 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:34,413 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:49:34,414 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:49:34,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:34,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1353830328, now seen corresponding path program 1 times [2021-11-20 22:49:34,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:34,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702365839] [2021-11-20 22:49:34,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:34,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:35,378 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 872 trivial. 0 not checked. [2021-11-20 22:49:35,379 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:35,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702365839] [2021-11-20 22:49:35,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702365839] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:35,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:35,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:49:35,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837135] [2021-11-20 22:49:35,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:35,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:49:35,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:35,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:49:35,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:49:35,432 INFO L87 Difference]: Start difference. First operand has 3043 states, 1909 states have (on average 1.3473022524882137) internal successors, (2572), 1969 states have internal predecessors, (2572), 997 states have call successors, (997), 153 states have call predecessors, (997), 152 states have return successors, (990), 976 states have call predecessors, (990), 990 states have call successors, (990) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-20 22:49:37,499 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:42,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:49:42,776 INFO L93 Difference]: Finished difference Result 8398 states and 12822 transitions. [2021-11-20 22:49:42,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:49:42,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 199 [2021-11-20 22:49:42,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:49:42,856 INFO L225 Difference]: With dead ends: 8398 [2021-11-20 22:49:42,856 INFO L226 Difference]: Without dead ends: 5331 [2021-11-20 22:49:42,898 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 [2021-11-20 22:49:42,902 INFO L933 BasicCegarLoop]: 4743 mSDtfsCounter, 3541 mSDsluCounter, 4406 mSDsCounter, 0 mSdLazyCounter, 1131 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3541 SdHoareTripleChecker+Valid, 8624 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1131 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-20 22:49:42,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3541 Valid, 8624 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1131 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-20 22:49:42,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5331 states. [2021-11-20 22:49:43,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5331 to 5328. [2021-11-20 22:49:43,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5328 states, 3330 states have (on average 1.3396396396396397) internal successors, (4461), 3409 states have internal predecessors, (4461), 1720 states have call successors, (1720), 277 states have call predecessors, (1720), 277 states have return successors, (1720), 1694 states have call predecessors, (1720), 1720 states have call successors, (1720) [2021-11-20 22:49:43,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5328 states to 5328 states and 7901 transitions. [2021-11-20 22:49:43,395 INFO L78 Accepts]: Start accepts. Automaton has 5328 states and 7901 transitions. Word has length 199 [2021-11-20 22:49:43,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:49:43,399 INFO L470 AbstractCegarLoop]: Abstraction has 5328 states and 7901 transitions. [2021-11-20 22:49:43,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-20 22:49:43,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5328 states and 7901 transitions. [2021-11-20 22:49:43,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-20 22:49:43,438 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:43,438 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 3, 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] [2021-11-20 22:49:43,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 22:49:43,440 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:49:43,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:43,441 INFO L85 PathProgramCache]: Analyzing trace with hash 474535166, now seen corresponding path program 1 times [2021-11-20 22:49:43,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:43,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810343583] [2021-11-20 22:49:43,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:43,444 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:43,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:43,780 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2021-11-20 22:49:43,781 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:43,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810343583] [2021-11-20 22:49:43,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810343583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:43,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:43,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:49:43,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656601878] [2021-11-20 22:49:43,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:43,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:49:43,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:43,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:49:43,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:49:43,790 INFO L87 Difference]: Start difference. First operand 5328 states and 7901 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-20 22:49:45,839 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:49:51,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:49:51,806 INFO L93 Difference]: Finished difference Result 15652 states and 23509 transitions. [2021-11-20 22:49:51,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:49:51,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 227 [2021-11-20 22:49:51,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:49:51,926 INFO L225 Difference]: With dead ends: 15652 [2021-11-20 22:49:51,926 INFO L226 Difference]: Without dead ends: 10355 [2021-11-20 22:49:51,982 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 [2021-11-20 22:49:51,984 INFO L933 BasicCegarLoop]: 4871 mSDtfsCounter, 4242 mSDsluCounter, 4430 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4242 SdHoareTripleChecker+Valid, 8777 SdHoareTripleChecker+Invalid, 1082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-20 22:49:51,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4242 Valid, 8777 Invalid, 1082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1075 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-11-20 22:49:52,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10355 states. [2021-11-20 22:49:52,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10355 to 10349. [2021-11-20 22:49:52,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10349 states, 6464 states have (on average 1.3405012376237624) internal successors, (8665), 6627 states have internal predecessors, (8665), 3335 states have call successors, (3335), 552 states have call predecessors, (3335), 549 states have return successors, (3643), 3275 states have call predecessors, (3643), 3335 states have call successors, (3643) [2021-11-20 22:49:52,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10349 states to 10349 states and 15643 transitions. [2021-11-20 22:49:52,802 INFO L78 Accepts]: Start accepts. Automaton has 10349 states and 15643 transitions. Word has length 227 [2021-11-20 22:49:52,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:49:52,803 INFO L470 AbstractCegarLoop]: Abstraction has 10349 states and 15643 transitions. [2021-11-20 22:49:52,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-20 22:49:52,804 INFO L276 IsEmpty]: Start isEmpty. Operand 10349 states and 15643 transitions. [2021-11-20 22:49:52,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-20 22:49:52,829 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:49:52,849 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:49:52,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 22:49:52,850 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:49:52,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:49:52,851 INFO L85 PathProgramCache]: Analyzing trace with hash 420386674, now seen corresponding path program 1 times [2021-11-20 22:49:52,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:49:52,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406410639] [2021-11-20 22:49:52,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:49:52,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:49:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:49:53,146 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-20 22:49:53,146 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:49:53,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406410639] [2021-11-20 22:49:53,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406410639] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:49:53,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:49:53,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:49:53,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299909386] [2021-11-20 22:49:53,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:49:53,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:49:53,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:49:53,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:49:53,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:49:53,150 INFO L87 Difference]: Start difference. First operand 10349 states and 15643 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-20 22:49:55,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:00,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:00,933 INFO L93 Difference]: Finished difference Result 30877 states and 46663 transitions. [2021-11-20 22:50:00,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:50:00,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 231 [2021-11-20 22:50:00,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:01,143 INFO L225 Difference]: With dead ends: 30877 [2021-11-20 22:50:01,143 INFO L226 Difference]: Without dead ends: 20559 [2021-11-20 22:50:01,223 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 [2021-11-20 22:50:01,225 INFO L933 BasicCegarLoop]: 4799 mSDtfsCounter, 4297 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4297 SdHoareTripleChecker+Valid, 8641 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:01,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4297 Valid, 8641 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2021-11-20 22:50:01,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20559 states. [2021-11-20 22:50:02,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20559 to 20557. [2021-11-20 22:50:02,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20557 states, 12843 states have (on average 1.3390173635443432) internal successors, (17197), 13169 states have internal predecessors, (17197), 6615 states have call successors, (6615), 1104 states have call predecessors, (6615), 1098 states have return successors, (7233), 6495 states have call predecessors, (7233), 6615 states have call successors, (7233) [2021-11-20 22:50:02,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20557 states to 20557 states and 31045 transitions. [2021-11-20 22:50:02,534 INFO L78 Accepts]: Start accepts. Automaton has 20557 states and 31045 transitions. Word has length 231 [2021-11-20 22:50:02,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:02,536 INFO L470 AbstractCegarLoop]: Abstraction has 20557 states and 31045 transitions. [2021-11-20 22:50:02,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-20 22:50:02,536 INFO L276 IsEmpty]: Start isEmpty. Operand 20557 states and 31045 transitions. [2021-11-20 22:50:02,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2021-11-20 22:50:02,563 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:02,564 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:02,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 22:50:02,564 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:50:02,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:02,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1433819076, now seen corresponding path program 1 times [2021-11-20 22:50:02,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:02,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285399448] [2021-11-20 22:50:02,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:02,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:02,837 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-20 22:50:02,838 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:02,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285399448] [2021-11-20 22:50:02,838 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285399448] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:02,838 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:02,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:50:02,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860034696] [2021-11-20 22:50:02,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:02,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:50:02,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:02,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:50:02,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:50:02,843 INFO L87 Difference]: Start difference. First operand 20557 states and 31045 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-20 22:50:04,892 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:10,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:10,377 INFO L93 Difference]: Finished difference Result 61393 states and 92695 transitions. [2021-11-20 22:50:10,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:50:10,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 232 [2021-11-20 22:50:10,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:11,013 INFO L225 Difference]: With dead ends: 61393 [2021-11-20 22:50:11,014 INFO L226 Difference]: Without dead ends: 40867 [2021-11-20 22:50:11,122 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 [2021-11-20 22:50:11,127 INFO L933 BasicCegarLoop]: 4799 mSDtfsCounter, 4296 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4296 SdHoareTripleChecker+Valid, 8641 SdHoareTripleChecker+Invalid, 1106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:11,128 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4296 Valid, 8641 Invalid, 1106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1098 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2021-11-20 22:50:11,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40867 states. [2021-11-20 22:50:13,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40867 to 40865. [2021-11-20 22:50:14,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40865 states, 25533 states have (on average 1.337288998550895) internal successors, (34145), 26185 states have internal predecessors, (34145), 13135 states have call successors, (13135), 2208 states have call predecessors, (13135), 2196 states have return successors, (14375), 12895 states have call predecessors, (14375), 13135 states have call successors, (14375) [2021-11-20 22:50:14,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40865 states to 40865 states and 61655 transitions. [2021-11-20 22:50:14,583 INFO L78 Accepts]: Start accepts. Automaton has 40865 states and 61655 transitions. Word has length 232 [2021-11-20 22:50:14,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:14,584 INFO L470 AbstractCegarLoop]: Abstraction has 40865 states and 61655 transitions. [2021-11-20 22:50:14,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-20 22:50:14,584 INFO L276 IsEmpty]: Start isEmpty. Operand 40865 states and 61655 transitions. [2021-11-20 22:50:14,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-20 22:50:14,607 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:14,608 INFO L514 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:14,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 22:50:14,608 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:50:14,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:14,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1156625612, now seen corresponding path program 1 times [2021-11-20 22:50:14,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:14,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027407423] [2021-11-20 22:50:14,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:14,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:14,863 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-20 22:50:14,863 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:14,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027407423] [2021-11-20 22:50:14,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027407423] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:14,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:14,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 22:50:14,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042334169] [2021-11-20 22:50:14,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:14,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 22:50:14,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:14,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 22:50:14,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:50:14,865 INFO L87 Difference]: Start difference. First operand 40865 states and 61655 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-20 22:50:16,915 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:36,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:36,310 INFO L93 Difference]: Finished difference Result 156087 states and 235158 transitions. [2021-11-20 22:50:36,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 22:50:36,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 233 [2021-11-20 22:50:36,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:50:37,237 INFO L225 Difference]: With dead ends: 156087 [2021-11-20 22:50:37,237 INFO L226 Difference]: Without dead ends: 115253 [2021-11-20 22:50:37,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-20 22:50:37,468 INFO L933 BasicCegarLoop]: 5539 mSDtfsCounter, 10719 mSDsluCounter, 9205 mSDsCounter, 0 mSdLazyCounter, 6885 mSolverCounterSat, 2078 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10899 SdHoareTripleChecker+Valid, 13195 SdHoareTripleChecker+Invalid, 8964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2078 IncrementalHoareTripleChecker+Valid, 6885 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2021-11-20 22:50:37,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10899 Valid, 13195 Invalid, 8964 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2078 Valid, 6885 Invalid, 1 Unknown, 0 Unchecked, 17.8s Time] [2021-11-20 22:50:37,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115253 states. [2021-11-20 22:50:43,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115253 to 115161. [2021-11-20 22:50:43,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115161 states, 71961 states have (on average 1.3356818276566473) internal successors, (96117), 73821 states have internal predecessors, (96117), 36887 states have call successors, (36887), 6346 states have call predecessors, (36887), 6312 states have return successors, (40343), 36205 states have call predecessors, (40343), 36887 states have call successors, (40343) [2021-11-20 22:50:45,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115161 states to 115161 states and 173347 transitions. [2021-11-20 22:50:45,333 INFO L78 Accepts]: Start accepts. Automaton has 115161 states and 173347 transitions. Word has length 233 [2021-11-20 22:50:45,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 22:50:45,334 INFO L470 AbstractCegarLoop]: Abstraction has 115161 states and 173347 transitions. [2021-11-20 22:50:45,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-20 22:50:45,335 INFO L276 IsEmpty]: Start isEmpty. Operand 115161 states and 173347 transitions. [2021-11-20 22:50:45,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-11-20 22:50:45,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 22:50:45,348 INFO L514 BasicCegarLoop]: trace histogram [19, 15, 15, 15, 15, 15, 15, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 22:50:45,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 22:50:45,348 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 22:50:45,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 22:50:45,349 INFO L85 PathProgramCache]: Analyzing trace with hash -687134285, now seen corresponding path program 1 times [2021-11-20 22:50:45,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 22:50:45,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740633812] [2021-11-20 22:50:45,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 22:50:45,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 22:50:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 22:50:45,607 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-11-20 22:50:45,608 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 22:50:45,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740633812] [2021-11-20 22:50:45,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740633812] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 22:50:45,608 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 22:50:45,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 22:50:45,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504460305] [2021-11-20 22:50:45,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 22:50:45,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 22:50:45,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 22:50:45,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 22:50:45,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 22:50:45,611 INFO L87 Difference]: Start difference. First operand 115161 states and 173347 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, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-20 22:50:47,661 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-20 22:50:59,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 22:50:59,116 INFO L93 Difference]: Finished difference Result 278241 states and 418715 transitions. [2021-11-20 22:50:59,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 22:50:59,117 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, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 242 [2021-11-20 22:50:59,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 22:51:00,638 INFO L225 Difference]: With dead ends: 278241 [2021-11-20 22:51:00,639 INFO L226 Difference]: Without dead ends: 163111 [2021-11-20 22:51:01,508 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 [2021-11-20 22:51:01,509 INFO L933 BasicCegarLoop]: 6932 mSDtfsCounter, 3500 mSDsluCounter, 4344 mSDsCounter, 0 mSdLazyCounter, 1538 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3500 SdHoareTripleChecker+Valid, 10752 SdHoareTripleChecker+Invalid, 1554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1538 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2021-11-20 22:51:01,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3500 Valid, 10752 Invalid, 1554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1538 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2021-11-20 22:51:01,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163111 states. [2021-11-20 22:51:08,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163111 to 163085. [2021-11-20 22:51:08,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163085 states, 101775 states have (on average 1.3328125767624661) internal successors, (135647), 104403 states have internal predecessors, (135647), 52247 states have call successors, (52247), 9106 states have call predecessors, (52247), 9062 states have return successors, (57135), 51279 states have call predecessors, (57135), 52247 states have call successors, (57135)