./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.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_ce78ad06-cac3-4329-87c6-eaca9de549a1/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/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_ce78ad06-cac3-4329-87c6-eaca9de549a1/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/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_ce78ad06-cac3-4329-87c6-eaca9de549a1/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 9e0fc576d8a50911d793e48f3029c6fea512a91c8b7de6b4c98b61b2fe16dd8a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:08:44,616 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:08:44,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:08:44,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:08:44,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:08:44,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:08:44,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:08:44,681 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:08:44,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:08:44,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:08:44,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:08:44,694 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:08:44,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:08:44,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:08:44,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:08:44,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:08:44,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:08:44,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:08:44,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:08:44,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:08:44,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:08:44,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:08:44,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:08:44,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:08:44,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:08:44,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:08:44,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:08:44,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:08:44,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:08:44,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:08:44,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:08:44,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:08:44,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:08:44,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:08:44,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:08:44,742 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:08:44,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:08:44,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:08:44,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:08:44,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:08:44,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:08:44,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:08:44,787 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:08:44,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:08:44,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:08:44,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:08:44,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:08:44,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:08:44,796 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:08:44,796 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:08:44,797 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:08:44,797 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:08:44,798 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:08:44,798 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:08:44,799 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:08:44,799 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:08:44,799 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:08:44,799 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:08:44,800 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:08:44,800 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:08:44,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:08:44,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:08:44,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:08:44,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:08:44,801 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:08:44,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:08:44,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:08:44,802 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:08:44,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:08:44,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:08:44,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:08:44,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:08:44,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:08:44,806 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:08:44,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:08:44,806 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:08:44,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:08:44,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:08:44,807 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:08:44,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:08:44,807 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_ce78ad06-cac3-4329-87c6-eaca9de549a1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e0fc576d8a50911d793e48f3029c6fea512a91c8b7de6b4c98b61b2fe16dd8a [2021-11-21 01:08:45,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:08:45,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:08:45,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:08:45,123 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:08:45,124 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:08:45,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-21 01:08:45,198 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/bin/utaipan-TEXQjIfE4P/data/a8db3c1a4/41628a7b95254a9aba8d0a758d2491f6/FLAG7d4db9a65 [2021-11-21 01:08:46,206 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:08:46,208 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-21 01:08:46,289 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/bin/utaipan-TEXQjIfE4P/data/a8db3c1a4/41628a7b95254a9aba8d0a758d2491f6/FLAG7d4db9a65 [2021-11-21 01:08:46,524 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/bin/utaipan-TEXQjIfE4P/data/a8db3c1a4/41628a7b95254a9aba8d0a758d2491f6 [2021-11-21 01:08:46,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:08:46,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:08:46,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:08:46,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:08:46,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:08:46,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:08:46" (1/1) ... [2021-11-21 01:08:46,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c7027f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:46, skipping insertion in model container [2021-11-21 01:08:46,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:08:46" (1/1) ... [2021-11-21 01:08:46,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:08:46,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:08:50,557 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2021-11-21 01:08:50,560 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_ce78ad06-cac3-4329-87c6-eaca9de549a1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2021-11-21 01:08:50,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:08:50,701 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:08:51,178 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_ce78ad06-cac3-4329-87c6-eaca9de549a1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2021-11-21 01:08:51,179 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_ce78ad06-cac3-4329-87c6-eaca9de549a1/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2021-11-21 01:08:51,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:08:51,383 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:08:51,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:51 WrapperNode [2021-11-21 01:08:51,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:08:51,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:08:51,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:08:51,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:08:51,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:51" (1/1) ... [2021-11-21 01:08:51,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:51" (1/1) ... [2021-11-21 01:08:51,823 INFO L137 Inliner]: procedures = 521, calls = 3820, calls flagged for inlining = 276, calls inlined = 261, statements flattened = 6818 [2021-11-21 01:08:51,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:08:51,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:08:51,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:08:51,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:08:51,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:51" (1/1) ... [2021-11-21 01:08:51,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:51" (1/1) ... [2021-11-21 01:08:51,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:51" (1/1) ... [2021-11-21 01:08:51,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:51" (1/1) ... [2021-11-21 01:08:52,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:51" (1/1) ... [2021-11-21 01:08:52,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:51" (1/1) ... [2021-11-21 01:08:52,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:51" (1/1) ... [2021-11-21 01:08:52,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:08:52,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:08:52,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:08:52,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:08:52,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:51" (1/1) ... [2021-11-21 01:08:52,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:08:52,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:08:52,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:08:52,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce78ad06-cac3-4329-87c6-eaca9de549a1/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:08:52,523 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2021-11-21 01:08:52,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2021-11-21 01:08:52,524 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_frequency_to_channel [2021-11-21 01:08:52,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_frequency_to_channel [2021-11-21 01:08:52,524 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_tx_ring [2021-11-21 01:08:52,524 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_tx_ring [2021-11-21 01:08:52,525 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2021-11-21 01:08:52,525 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2021-11-21 01:08:52,525 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-21 01:08:52,525 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-21 01:08:52,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:08:52,525 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:08:52,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:08:52,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:08:52,526 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_init [2021-11-21 01:08:52,526 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_init [2021-11-21 01:08:52,526 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_calc_rssi [2021-11-21 01:08:52,527 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_calc_rssi [2021-11-21 01:08:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:08:52,527 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:08:52,527 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-21 01:08:52,527 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-21 01:08:52,528 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 01:08:52,528 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 01:08:52,528 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_write_phy_antenna [2021-11-21 01:08:52,528 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_write_phy_antenna [2021-11-21 01:08:52,528 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_init [2021-11-21 01:08:52,528 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_init [2021-11-21 01:08:52,529 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2021-11-21 01:08:52,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2021-11-21 01:08:52,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:08:52,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:08:52,529 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_free_rx_ring [2021-11-21 01:08:52,529 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_free_rx_ring [2021-11-21 01:08:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_bss_info_changed [2021-11-21 01:08:52,530 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_bss_info_changed [2021-11-21 01:08:52,530 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_calc_rssi [2021-11-21 01:08:52,531 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_calc_rssi [2021-11-21 01:08:52,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:08:52,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:08:52,531 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-21 01:08:52,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-21 01:08:52,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2021-11-21 01:08:52,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_rtl8180_driver_exit_14_2 [2021-11-21 01:08:52,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:08:52,532 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2021-11-21 01:08:52,533 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2021-11-21 01:08:52,533 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2021-11-21 01:08:52,534 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2021-11-21 01:08:52,534 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_set_anaparam [2021-11-21 01:08:52,535 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_set_anaparam [2021-11-21 01:08:52,535 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:08:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2021-11-21 01:08:52,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2021-11-21 01:08:52,536 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_conf_erp [2021-11-21 01:08:52,536 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_conf_erp [2021-11-21 01:08:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:08:52,537 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:08:52,537 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 01:08:52,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 01:08:52,538 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_stop [2021-11-21 01:08:52,538 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_stop [2021-11-21 01:08:52,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:08:52,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:08:52,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:08:52,539 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2021-11-21 01:08:52,539 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2021-11-21 01:08:52,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:08:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 01:08:52,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 01:08:52,540 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_get_tsf [2021-11-21 01:08:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_get_tsf [2021-11-21 01:08:52,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:08:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:08:52,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 01:08:52,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 01:08:52,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 01:08:52,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 01:08:52,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 01:08:52,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 01:08:52,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 01:08:52,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 01:08:52,544 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2021-11-21 01:08:52,544 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2021-11-21 01:08:52,544 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_add_interface [2021-11-21 01:08:52,544 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_add_interface [2021-11-21 01:08:52,544 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_write_phy_antenna [2021-11-21 01:08:52,545 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_write_phy_antenna [2021-11-21 01:08:52,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-21 01:08:52,546 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-21 01:08:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 01:08:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 01:08:52,547 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2021-11-21 01:08:52,547 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2021-11-21 01:08:52,548 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2021-11-21 01:08:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2021-11-21 01:08:52,548 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_set_channel [2021-11-21 01:08:52,548 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_set_channel [2021-11-21 01:08:52,548 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-11-21 01:08:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-11-21 01:08:52,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:08:52,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 01:08:52,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 01:08:52,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 01:08:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 01:08:52,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:08:52,550 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 01:08:52,550 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 01:08:52,551 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2021-11-21 01:08:52,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2021-11-21 01:08:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2021-11-21 01:08:52,554 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2021-11-21 01:08:52,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:08:52,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:08:52,555 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 01:08:52,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 01:08:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:08:52,556 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:08:52,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 01:08:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:08:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:08:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-21 01:08:52,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-21 01:08:52,563 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2021-11-21 01:08:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2021-11-21 01:08:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-21 01:08:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-21 01:08:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_start [2021-11-21 01:08:52,564 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_start [2021-11-21 01:08:52,564 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_rf_set_channel [2021-11-21 01:08:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_rf_set_channel [2021-11-21 01:08:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:08:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:08:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_resume [2021-11-21 01:08:52,565 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_resume [2021-11-21 01:08:52,565 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2021-11-21 01:08:52,566 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2021-11-21 01:08:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_rtl8180_priv [2021-11-21 01:08:52,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_rtl8180_priv [2021-11-21 01:08:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_calc_rssi [2021-11-21 01:08:52,566 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_calc_rssi [2021-11-21 01:08:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_write_phy [2021-11-21 01:08:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_write_phy [2021-11-21 01:08:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-21 01:08:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-21 01:08:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:08:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:08:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 01:08:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 01:08:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure write_sa2400 [2021-11-21 01:08:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure write_sa2400 [2021-11-21 01:08:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:08:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:08:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:08:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:08:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-11-21 01:08:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-11-21 01:08:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ieee80211_free_hw [2021-11-21 01:08:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ieee80211_free_hw [2021-11-21 01:08:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2021-11-21 01:08:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2021-11-21 01:08:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2021-11-21 01:08:52,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2021-11-21 01:08:52,570 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove [2021-11-21 01:08:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove [2021-11-21 01:08:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-21 01:08:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-21 01:08:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 01:08:52,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 01:08:52,571 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 01:08:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 01:08:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure sa2400_rf_stop [2021-11-21 01:08:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure sa2400_rf_stop [2021-11-21 01:08:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:08:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:08:52,572 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-21 01:08:52,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-21 01:08:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2021-11-21 01:08:52,573 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2021-11-21 01:08:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:08:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure grf5101_write_phy_antenna [2021-11-21 01:08:52,573 INFO L138 BoogieDeclarations]: Found implementation of procedure grf5101_write_phy_antenna [2021-11-21 01:08:52,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:08:52,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:08:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-21 01:08:52,579 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-21 01:08:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:08:52,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:08:52,579 INFO L130 BoogieDeclarations]: Found specification of procedure write_max2820 [2021-11-21 01:08:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure write_max2820 [2021-11-21 01:08:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure write_grf5101 [2021-11-21 01:08:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure write_grf5101 [2021-11-21 01:08:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_remove_interface [2021-11-21 01:08:52,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_remove_interface [2021-11-21 01:08:52,580 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-21 01:08:52,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-21 01:08:52,581 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2021-11-21 01:08:52,581 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2021-11-21 01:08:52,581 INFO L130 BoogieDeclarations]: Found specification of procedure max2820_rf_set_channel [2021-11-21 01:08:52,581 INFO L138 BoogieDeclarations]: Found implementation of procedure max2820_rf_set_channel [2021-11-21 01:08:52,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:08:52,581 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2021-11-21 01:08:52,582 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2021-11-21 01:08:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-21 01:08:52,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-21 01:08:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:08:52,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:08:52,582 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_handle_tx [2021-11-21 01:08:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_handle_tx [2021-11-21 01:08:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_configure_filter [2021-11-21 01:08:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_configure_filter [2021-11-21 01:08:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2021-11-21 01:08:52,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2021-11-21 01:08:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2021-11-21 01:08:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_rtl8180_priv [2021-11-21 01:08:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-21 01:08:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-21 01:08:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-11-21 01:08:52,611 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-11-21 01:08:52,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:08:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:08:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_prepare_multicast [2021-11-21 01:08:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_prepare_multicast [2021-11-21 01:08:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 01:08:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 01:08:52,612 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2021-11-21 01:08:52,612 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2021-11-21 01:08:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_multiread [2021-11-21 01:08:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_multiread [2021-11-21 01:08:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-21 01:08:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:08:52,613 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-21 01:08:52,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-21 01:08:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_config [2021-11-21 01:08:52,614 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_config [2021-11-21 01:08:52,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 01:08:52,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 01:08:52,619 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_tx [2021-11-21 01:08:52,619 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_tx [2021-11-21 01:08:52,620 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2021-11-21 01:08:52,620 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2021-11-21 01:08:52,620 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2021-11-21 01:08:52,620 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2021-11-21 01:08:53,739 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:08:53,743 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:08:53,908 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:09:02,632 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 01:09:02,872 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:09:04,617 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:09:04,617 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 01:09:04,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:09:04 BoogieIcfgContainer [2021-11-21 01:09:04,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:09:04,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:09:04,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:09:04,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:09:04,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:08:46" (1/3) ... [2021-11-21 01:09:04,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63339ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:09:04, skipping insertion in model container [2021-11-21 01:09:04,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:51" (2/3) ... [2021-11-21 01:09:04,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63339ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:09:04, skipping insertion in model container [2021-11-21 01:09:04,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:09:04" (3/3) ... [2021-11-21 01:09:04,636 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-21 01:09:04,644 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:09:04,645 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:09:04,729 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:09:04,746 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 [2021-11-21 01:09:04,746 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:09:04,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 2491 states, 1168 states have (on average 1.2568493150684932) internal successors, (1468), 1204 states have internal predecessors, (1468), 1210 states have call successors, (1210), 113 states have call predecessors, (1210), 112 states have return successors, (1202), 1185 states have call predecessors, (1202), 1202 states have call successors, (1202) [2021-11-21 01:09:04,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2021-11-21 01:09:04,895 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:04,897 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:09:04,897 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:09:04,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:04,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1458294750, now seen corresponding path program 1 times [2021-11-21 01:09:04,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:09:04,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416492538] [2021-11-21 01:09:04,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:04,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:09:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:06,137 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-21 01:09:06,138 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:09:06,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416492538] [2021-11-21 01:09:06,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416492538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:06,139 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:09:06,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:09:06,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901163284] [2021-11-21 01:09:06,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:06,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:09:06,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:09:06,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:09:06,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:09:06,199 INFO L87 Difference]: Start difference. First operand has 2491 states, 1168 states have (on average 1.2568493150684932) internal successors, (1468), 1204 states have internal predecessors, (1468), 1210 states have call successors, (1210), 113 states have call predecessors, (1210), 112 states have return successors, (1202), 1185 states have call predecessors, (1202), 1202 states have call successors, (1202) Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-21 01:09:08,489 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:09:11,404 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:09:13,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:13,018 INFO L93 Difference]: Finished difference Result 7233 states and 11330 transitions. [2021-11-21 01:09:13,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:09:13,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 411 [2021-11-21 01:09:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:13,090 INFO L225 Difference]: With dead ends: 7233 [2021-11-21 01:09:13,090 INFO L226 Difference]: Without dead ends: 4748 [2021-11-21 01:09:13,122 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 [2021-11-21 01:09:13,125 INFO L933 BasicCegarLoop]: 4681 mSDtfsCounter, 3631 mSDsluCounter, 3799 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3638 SdHoareTripleChecker+Valid, 8160 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:13,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3638 Valid, 8160 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 758 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-11-21 01:09:13,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4748 states. [2021-11-21 01:09:13,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4748 to 4741. [2021-11-21 01:09:13,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4741 states, 2230 states have (on average 1.248878923766816) internal successors, (2785), 2297 states have internal predecessors, (2785), 2290 states have call successors, (2290), 220 states have call predecessors, (2290), 220 states have return successors, (2316), 2255 states have call predecessors, (2316), 2290 states have call successors, (2316) [2021-11-21 01:09:14,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4741 states to 4741 states and 7391 transitions. [2021-11-21 01:09:14,021 INFO L78 Accepts]: Start accepts. Automaton has 4741 states and 7391 transitions. Word has length 411 [2021-11-21 01:09:14,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:14,026 INFO L470 AbstractCegarLoop]: Abstraction has 4741 states and 7391 transitions. [2021-11-21 01:09:14,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-21 01:09:14,028 INFO L276 IsEmpty]: Start isEmpty. Operand 4741 states and 7391 transitions. [2021-11-21 01:09:14,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-11-21 01:09:14,049 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:14,049 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:09:14,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:09:14,051 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:09:14,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:14,053 INFO L85 PathProgramCache]: Analyzing trace with hash 751109315, now seen corresponding path program 1 times [2021-11-21 01:09:14,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:09:14,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835435749] [2021-11-21 01:09:14,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:14,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:09:14,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-21 01:09:14,536 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:09:14,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835435749] [2021-11-21 01:09:14,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835435749] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:14,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:09:14,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:09:14,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923158002] [2021-11-21 01:09:14,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:14,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:09:14,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:09:14,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:09:14,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:09:14,540 INFO L87 Difference]: Start difference. First operand 4741 states and 7391 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-21 01:09:18,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:09:20,475 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:09:22,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:22,013 INFO L93 Difference]: Finished difference Result 13945 states and 21773 transitions. [2021-11-21 01:09:22,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:09:22,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 413 [2021-11-21 01:09:22,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:22,125 INFO L225 Difference]: With dead ends: 13945 [2021-11-21 01:09:22,126 INFO L226 Difference]: Without dead ends: 9277 [2021-11-21 01:09:22,173 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 [2021-11-21 01:09:22,174 INFO L933 BasicCegarLoop]: 4603 mSDtfsCounter, 3579 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3583 SdHoareTripleChecker+Valid, 8020 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:22,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3583 Valid, 8020 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 755 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2021-11-21 01:09:22,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9277 states. [2021-11-21 01:09:23,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9277 to 9266. [2021-11-21 01:09:23,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9266 states, 4342 states have (on average 1.2441271303546753) internal successors, (5402), 4477 states have internal predecessors, (5402), 4483 states have call successors, (4483), 440 states have call predecessors, (4483), 440 states have return successors, (4570), 4412 states have call predecessors, (4570), 4483 states have call successors, (4570) [2021-11-21 01:09:23,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9266 states to 9266 states and 14455 transitions. [2021-11-21 01:09:23,207 INFO L78 Accepts]: Start accepts. Automaton has 9266 states and 14455 transitions. Word has length 413 [2021-11-21 01:09:23,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:23,211 INFO L470 AbstractCegarLoop]: Abstraction has 9266 states and 14455 transitions. [2021-11-21 01:09:23,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-21 01:09:23,213 INFO L276 IsEmpty]: Start isEmpty. Operand 9266 states and 14455 transitions. [2021-11-21 01:09:23,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-21 01:09:23,316 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:23,316 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:09:23,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:09:23,317 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:09:23,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:23,318 INFO L85 PathProgramCache]: Analyzing trace with hash -695554493, now seen corresponding path program 1 times [2021-11-21 01:09:23,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:09:23,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513391522] [2021-11-21 01:09:23,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:23,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:09:23,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:23,701 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-21 01:09:23,701 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:09:23,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513391522] [2021-11-21 01:09:23,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513391522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:23,702 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:09:23,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:09:23,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585167982] [2021-11-21 01:09:23,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:23,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:09:23,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:09:23,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:09:23,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:09:23,704 INFO L87 Difference]: Start difference. First operand 9266 states and 14455 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 01:09:26,597 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:09:29,506 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:09:31,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:31,001 INFO L93 Difference]: Finished difference Result 26734 states and 41755 transitions. [2021-11-21 01:09:31,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:09:31,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 414 [2021-11-21 01:09:31,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:31,206 INFO L225 Difference]: With dead ends: 26734 [2021-11-21 01:09:31,206 INFO L226 Difference]: Without dead ends: 17541 [2021-11-21 01:09:31,285 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 [2021-11-21 01:09:31,291 INFO L933 BasicCegarLoop]: 5405 mSDtfsCounter, 3318 mSDsluCounter, 3762 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3323 SdHoareTripleChecker+Valid, 8837 SdHoareTripleChecker+Invalid, 828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:31,292 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3323 Valid, 8837 Invalid, 828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 812 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2021-11-21 01:09:31,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17541 states. [2021-11-21 01:09:33,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17541 to 17534. [2021-11-21 01:09:33,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17534 states, 8106 states have (on average 1.2373550456452012) internal successors, (10030), 8377 states have internal predecessors, (10030), 8575 states have call successors, (8575), 852 states have call predecessors, (8575), 852 states have return successors, (8738), 8428 states have call predecessors, (8738), 8575 states have call successors, (8738) [2021-11-21 01:09:33,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17534 states to 17534 states and 27343 transitions. [2021-11-21 01:09:33,351 INFO L78 Accepts]: Start accepts. Automaton has 17534 states and 27343 transitions. Word has length 414 [2021-11-21 01:09:33,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:33,352 INFO L470 AbstractCegarLoop]: Abstraction has 17534 states and 27343 transitions. [2021-11-21 01:09:33,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 01:09:33,353 INFO L276 IsEmpty]: Start isEmpty. Operand 17534 states and 27343 transitions. [2021-11-21 01:09:33,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-21 01:09:33,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:33,367 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:09:33,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:09:33,368 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:09:33,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:33,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1359381405, now seen corresponding path program 1 times [2021-11-21 01:09:33,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:09:33,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784635626] [2021-11-21 01:09:33,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:33,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:09:33,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:34,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-21 01:09:34,039 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:09:34,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784635626] [2021-11-21 01:09:34,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784635626] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:34,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:09:34,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:09:34,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671056521] [2021-11-21 01:09:34,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:34,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:09:34,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:09:34,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:09:34,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:09:34,043 INFO L87 Difference]: Start difference. First operand 17534 states and 27343 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 01:09:36,187 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:09:39,138 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:09:41,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:41,433 INFO L93 Difference]: Finished difference Result 51898 states and 81009 transitions. [2021-11-21 01:09:41,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:09:41,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 414 [2021-11-21 01:09:41,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:41,841 INFO L225 Difference]: With dead ends: 51898 [2021-11-21 01:09:41,841 INFO L226 Difference]: Without dead ends: 34437 [2021-11-21 01:09:41,950 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 [2021-11-21 01:09:41,955 INFO L933 BasicCegarLoop]: 4596 mSDtfsCounter, 3560 mSDsluCounter, 3735 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3567 SdHoareTripleChecker+Valid, 8013 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:41,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3567 Valid, 8013 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 756 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-11-21 01:09:42,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34437 states. [2021-11-21 01:09:45,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34437 to 34406. [2021-11-21 01:09:45,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34406 states, 15838 states have (on average 1.230332112640485) internal successors, (19486), 16381 states have internal predecessors, (19486), 16863 states have call successors, (16863), 1704 states have call predecessors, (16863), 1704 states have return successors, (17292), 16568 states have call predecessors, (17292), 16863 states have call successors, (17292) [2021-11-21 01:09:45,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34406 states to 34406 states and 53641 transitions. [2021-11-21 01:09:45,779 INFO L78 Accepts]: Start accepts. Automaton has 34406 states and 53641 transitions. Word has length 414 [2021-11-21 01:09:45,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:45,781 INFO L470 AbstractCegarLoop]: Abstraction has 34406 states and 53641 transitions. [2021-11-21 01:09:45,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 01:09:45,782 INFO L276 IsEmpty]: Start isEmpty. Operand 34406 states and 53641 transitions. [2021-11-21 01:09:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2021-11-21 01:09:45,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:45,793 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:09:45,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:09:45,794 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:09:45,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:45,794 INFO L85 PathProgramCache]: Analyzing trace with hash -873679616, now seen corresponding path program 1 times [2021-11-21 01:09:45,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:09:45,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144565556] [2021-11-21 01:09:45,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:45,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:09:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:46,218 INFO L134 CoverageAnalysis]: Checked inductivity of 5112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5112 trivial. 0 not checked. [2021-11-21 01:09:46,218 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:09:46,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144565556] [2021-11-21 01:09:46,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144565556] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:46,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:09:46,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:09:46,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881641036] [2021-11-21 01:09:46,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:46,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:09:46,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:09:46,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:09:46,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:09:46,221 INFO L87 Difference]: Start difference. First operand 34406 states and 53641 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-21 01:09:48,949 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:09:53,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:53,460 INFO L93 Difference]: Finished difference Result 100528 states and 156749 transitions. [2021-11-21 01:09:53,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:09:53,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 414 [2021-11-21 01:09:53,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:54,152 INFO L225 Difference]: With dead ends: 100528 [2021-11-21 01:09:54,152 INFO L226 Difference]: Without dead ends: 66195 [2021-11-21 01:09:54,449 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 [2021-11-21 01:09:54,450 INFO L933 BasicCegarLoop]: 4600 mSDtfsCounter, 3577 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3581 SdHoareTripleChecker+Valid, 8017 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:54,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3581 Valid, 8017 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 755 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2021-11-21 01:09:54,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66195 states. [2021-11-21 01:09:58,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66195 to 66121. [2021-11-21 01:09:58,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66121 states, 30404 states have (on average 1.2230956453098276) internal successors, (37187), 31461 states have internal predecessors, (37187), 32375 states have call successors, (32375), 3337 states have call predecessors, (32375), 3341 states have return successors, (33374), 31810 states have call predecessors, (33374), 32375 states have call successors, (33374) [2021-11-21 01:09:59,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66121 states to 66121 states and 102936 transitions. [2021-11-21 01:09:59,860 INFO L78 Accepts]: Start accepts. Automaton has 66121 states and 102936 transitions. Word has length 414 [2021-11-21 01:09:59,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:59,861 INFO L470 AbstractCegarLoop]: Abstraction has 66121 states and 102936 transitions. [2021-11-21 01:09:59,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2021-11-21 01:09:59,862 INFO L276 IsEmpty]: Start isEmpty. Operand 66121 states and 102936 transitions. [2021-11-21 01:09:59,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2021-11-21 01:09:59,873 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:59,873 INFO L514 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:09:59,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:09:59,874 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:09:59,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:59,875 INFO L85 PathProgramCache]: Analyzing trace with hash 73598017, now seen corresponding path program 1 times [2021-11-21 01:09:59,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:09:59,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549150585] [2021-11-21 01:09:59,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:59,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:10:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:10:00,268 INFO L134 CoverageAnalysis]: Checked inductivity of 5114 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5114 trivial. 0 not checked. [2021-11-21 01:10:00,268 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:10:00,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549150585] [2021-11-21 01:10:00,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549150585] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:10:00,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:10:00,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:10:00,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242673347] [2021-11-21 01:10:00,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:10:00,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:10:00,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:10:00,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:10:00,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:10:00,271 INFO L87 Difference]: Start difference. First operand 66121 states and 102936 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-21 01:10:02,416 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:10:04,184 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:10:06,449 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:10:08,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:10:13,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:10:13,700 INFO L93 Difference]: Finished difference Result 194704 states and 304821 transitions. [2021-11-21 01:10:13,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:10:13,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 426 [2021-11-21 01:10:13,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:10:14,964 INFO L225 Difference]: With dead ends: 194704 [2021-11-21 01:10:14,964 INFO L226 Difference]: Without dead ends: 128656 [2021-11-21 01:10:15,357 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 [2021-11-21 01:10:15,359 INFO L933 BasicCegarLoop]: 4610 mSDtfsCounter, 3561 mSDsluCounter, 3793 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3561 SdHoareTripleChecker+Valid, 8065 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:10:15,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3561 Valid, 8065 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 698 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2021-11-21 01:10:15,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128656 states. [2021-11-21 01:10:24,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128656 to 128590. [2021-11-21 01:10:24,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128590 states, 58651 states have (on average 1.2192289986530493) internal successors, (71509), 60685 states have internal predecessors, (71509), 63453 states have call successors, (63453), 6509 states have call predecessors, (63453), 6485 states have return successors, (66871), 62243 states have call predecessors, (66871), 63453 states have call successors, (66871) [2021-11-21 01:10:26,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128590 states to 128590 states and 201833 transitions. [2021-11-21 01:10:26,223 INFO L78 Accepts]: Start accepts. Automaton has 128590 states and 201833 transitions. Word has length 426 [2021-11-21 01:10:26,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:10:26,225 INFO L470 AbstractCegarLoop]: Abstraction has 128590 states and 201833 transitions. [2021-11-21 01:10:26,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2021-11-21 01:10:26,226 INFO L276 IsEmpty]: Start isEmpty. Operand 128590 states and 201833 transitions. [2021-11-21 01:10:26,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2021-11-21 01:10:26,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:10:26,235 INFO L514 BasicCegarLoop]: trace histogram [40, 36, 36, 36, 36, 36, 36, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:10:26,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:10:26,235 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:10:26,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:10:26,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1964302061, now seen corresponding path program 1 times [2021-11-21 01:10:26,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:10:26,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621472370] [2021-11-21 01:10:26,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:10:26,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:10:26,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:10:26,730 INFO L134 CoverageAnalysis]: Checked inductivity of 5361 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5358 trivial. 0 not checked. [2021-11-21 01:10:26,731 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:10:26,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621472370] [2021-11-21 01:10:26,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621472370] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:10:26,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:10:26,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:10:26,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758316289] [2021-11-21 01:10:26,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:10:26,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:10:26,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:10:26,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:10:26,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:10:26,734 INFO L87 Difference]: Start difference. First operand 128590 states and 201833 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-21 01:10:29,459 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:10:32,141 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []