./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.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_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/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_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/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_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/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 06a1a5884933bcba18239575fcdd90e80287d1e97f83c153d30cbf6ef2bf14a2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:06:01,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:06:01,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:06:01,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:06:01,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:06:01,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:06:01,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:06:01,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:06:01,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:06:01,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:06:01,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:06:01,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:06:01,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:06:01,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:06:01,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:06:01,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:06:01,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:06:01,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:06:01,704 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:06:01,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:06:01,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:06:01,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:06:01,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:06:01,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:06:01,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:06:01,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:06:01,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:06:01,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:06:01,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:06:01,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:06:01,737 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:06:01,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:06:01,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:06:01,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:06:01,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:06:01,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:06:01,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:06:01,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:06:01,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:06:01,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:06:01,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:06:01,747 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 00:06:01,792 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:06:01,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:06:01,793 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:06:01,793 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:06:01,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:06:01,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:06:01,801 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:06:01,801 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:06:01,801 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:06:01,801 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:06:01,802 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:06:01,803 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:06:01,803 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:06:01,803 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:06:01,803 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:06:01,803 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:06:01,804 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:06:01,804 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:06:01,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:06:01,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:06:01,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:06:01,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:06:01,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:06:01,806 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:06:01,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:06:01,806 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:06:01,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:06:01,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:06:01,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:06:01,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:06:01,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:06:01,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:06:01,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:06:01,810 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:06:01,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:06:01,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:06:01,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:06:01,810 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:06:01,811 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_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06a1a5884933bcba18239575fcdd90e80287d1e97f83c153d30cbf6ef2bf14a2 [2021-11-21 00:06:02,097 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:06:02,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:06:02,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:06:02,134 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:06:02,134 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:06:02,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-11-21 00:06:02,244 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/bin/utaipan-TEXQjIfE4P/data/d5df90c52/ec9faa9e91b34dac9ea39f01b413ef1b/FLAGe3327ac71 [2021-11-21 00:06:03,325 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:06:03,325 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-11-21 00:06:03,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/bin/utaipan-TEXQjIfE4P/data/d5df90c52/ec9faa9e91b34dac9ea39f01b413ef1b/FLAGe3327ac71 [2021-11-21 00:06:03,723 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/bin/utaipan-TEXQjIfE4P/data/d5df90c52/ec9faa9e91b34dac9ea39f01b413ef1b [2021-11-21 00:06:03,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:06:03,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:06:03,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:06:03,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:06:03,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:06:03,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:06:03" (1/1) ... [2021-11-21 00:06:03,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc508c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:03, skipping insertion in model container [2021-11-21 00:06:03,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:06:03" (1/1) ... [2021-11-21 00:06:03,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:06:03,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:06:09,609 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_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[523621,523634] [2021-11-21 00:06:09,612 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_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[523766,523779] [2021-11-21 00:06:09,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:06:09,712 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:06:10,313 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_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[523621,523634] [2021-11-21 00:06:10,316 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_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i[523766,523779] [2021-11-21 00:06:10,325 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:06:10,874 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:06:10,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:10 WrapperNode [2021-11-21 00:06:10,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:06:10,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:06:10,876 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:06:10,876 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:06:10,884 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:10" (1/1) ... [2021-11-21 00:06:11,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:10" (1/1) ... [2021-11-21 00:06:11,477 INFO L137 Inliner]: procedures = 696, calls = 4163, calls flagged for inlining = 369, calls inlined = 343, statements flattened = 10403 [2021-11-21 00:06:11,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:06:11,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:06:11,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:06:11,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:06:11,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:10" (1/1) ... [2021-11-21 00:06:11,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:10" (1/1) ... [2021-11-21 00:06:11,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:10" (1/1) ... [2021-11-21 00:06:11,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:10" (1/1) ... [2021-11-21 00:06:11,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:10" (1/1) ... [2021-11-21 00:06:12,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:10" (1/1) ... [2021-11-21 00:06:12,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:10" (1/1) ... [2021-11-21 00:06:12,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:06:12,208 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:06:12,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:06:12,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:06:12,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:10" (1/1) ... [2021-11-21 00:06:12,241 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:06:12,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:06:12,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:06:12,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e77f6fa8-d98c-4f4c-9bcb-0d4770f657c6/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:06:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 00:06:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 00:06:12,346 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-21 00:06:12,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-21 00:06:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2021-11-21 00:06:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2021-11-21 00:06:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-21 00:06:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-21 00:06:12,347 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2021-11-21 00:06:12,347 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2021-11-21 00:06:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-21 00:06:12,348 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-21 00:06:12,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 00:06:12,348 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 00:06:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-21 00:06:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-21 00:06:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 00:06:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 00:06:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2021-11-21 00:06:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2021-11-21 00:06:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 00:06:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 00:06:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 00:06:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 00:06:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 00:06:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 00:06:12,352 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2021-11-21 00:06:12,352 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2021-11-21 00:06:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-21 00:06:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-21 00:06:12,353 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2021-11-21 00:06:12,353 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2021-11-21 00:06:12,354 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2021-11-21 00:06:12,354 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2021-11-21 00:06:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2021-11-21 00:06:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2021-11-21 00:06:12,355 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 00:06:12,355 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 00:06:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 00:06:12,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 00:06:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 00:06:12,356 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 00:06:12,356 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 00:06:12,357 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 00:06:12,357 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 00:06:12,357 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 00:06:12,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 00:06:12,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 00:06:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-21 00:06:12,359 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-21 00:06:12,359 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-21 00:06:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-21 00:06:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-21 00:06:12,360 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-21 00:06:12,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:06:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 00:06:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 00:06:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2021-11-21 00:06:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2021-11-21 00:06:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2021-11-21 00:06:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2021-11-21 00:06:12,363 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-21 00:06:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-21 00:06:12,363 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2021-11-21 00:06:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2021-11-21 00:06:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 00:06:12,364 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 00:06:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_110 [2021-11-21 00:06:12,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_110 [2021-11-21 00:06:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2021-11-21 00:06:12,364 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2021-11-21 00:06:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 00:06:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2021-11-21 00:06:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2021-11-21 00:06:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2021-11-21 00:06:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2021-11-21 00:06:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2021-11-21 00:06:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2021-11-21 00:06:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 00:06:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 00:06:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-21 00:06:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-21 00:06:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2021-11-21 00:06:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2021-11-21 00:06:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 00:06:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 00:06:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 00:06:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:06:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 00:06:12,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 00:06:12,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-21 00:06:12,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-21 00:06:12,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 00:06:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 00:06:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 00:06:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 00:06:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-21 00:06:12,371 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-21 00:06:12,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 00:06:12,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 00:06:12,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 00:06:12,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 00:06:12,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 00:06:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 00:06:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 00:06:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 00:06:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2021-11-21 00:06:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2021-11-21 00:06:12,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:06:12,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 00:06:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 00:06:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 00:06:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 00:06:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-21 00:06:12,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-21 00:06:12,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-11-21 00:06:12,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-11-21 00:06:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:06:12,381 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 00:06:12,387 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 00:06:12,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 00:06:12,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 00:06:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 00:06:12,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 00:06:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:06:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2021-11-21 00:06:12,388 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2021-11-21 00:06:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2021-11-21 00:06:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2021-11-21 00:06:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 00:06:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:06:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-21 00:06:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-21 00:06:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-21 00:06:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:06:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 00:06:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-21 00:06:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-21 00:06:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-21 00:06:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-21 00:06:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-21 00:06:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-21 00:06:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2021-11-21 00:06:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2021-11-21 00:06:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2021-11-21 00:06:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2021-11-21 00:06:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-21 00:06:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-21 00:06:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-21 00:06:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-21 00:06:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 00:06:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 00:06:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2021-11-21 00:06:12,393 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2021-11-21 00:06:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 00:06:12,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 00:06:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2021-11-21 00:06:12,393 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2021-11-21 00:06:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2021-11-21 00:06:12,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2021-11-21 00:06:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2021-11-21 00:06:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2021-11-21 00:06:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2021-11-21 00:06:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2021-11-21 00:06:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2021-11-21 00:06:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2021-11-21 00:06:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 00:06:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 00:06:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 00:06:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 00:06:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2021-11-21 00:06:12,397 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2021-11-21 00:06:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2021-11-21 00:06:12,397 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2021-11-21 00:06:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2021-11-21 00:06:12,397 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2021-11-21 00:06:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2021-11-21 00:06:12,398 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2021-11-21 00:06:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:06:12,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:06:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-21 00:06:12,398 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-21 00:06:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-21 00:06:12,401 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-21 00:06:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 00:06:12,401 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 00:06:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 00:06:12,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 00:06:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 00:06:12,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 00:06:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 00:06:12,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 00:06:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 00:06:12,402 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 00:06:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2021-11-21 00:06:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2021-11-21 00:06:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-21 00:06:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-21 00:06:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 00:06:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 00:06:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2021-11-21 00:06:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2021-11-21 00:06:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2021-11-21 00:06:12,404 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2021-11-21 00:06:12,404 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-21 00:06:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-21 00:06:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-21 00:06:12,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-21 00:06:12,413 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-21 00:06:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-21 00:06:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2021-11-21 00:06:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2021-11-21 00:06:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2021-11-21 00:06:12,414 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2021-11-21 00:06:12,414 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 00:06:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 00:06:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:06:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:06:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2021-11-21 00:06:12,415 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2021-11-21 00:06:12,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-21 00:06:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-21 00:06:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2021-11-21 00:06:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2021-11-21 00:06:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-21 00:06:12,416 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-21 00:06:12,416 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 00:06:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 00:06:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:06:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-21 00:06:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-21 00:06:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2021-11-21 00:06:12,417 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2021-11-21 00:06:12,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_118 [2021-11-21 00:06:12,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_118 [2021-11-21 00:06:12,418 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2021-11-21 00:06:12,419 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2021-11-21 00:06:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 00:06:12,424 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 00:06:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:06:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2021-11-21 00:06:12,424 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2021-11-21 00:06:12,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-21 00:06:12,425 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-21 00:06:12,425 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2021-11-21 00:06:12,425 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2021-11-21 00:06:12,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_104 [2021-11-21 00:06:12,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_104 [2021-11-21 00:06:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 00:06:12,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 00:06:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-21 00:06:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-21 00:06:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-21 00:06:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2021-11-21 00:06:12,428 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2021-11-21 00:06:12,428 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-21 00:06:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-21 00:06:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-21 00:06:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-21 00:06:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2021-11-21 00:06:12,429 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2021-11-21 00:06:12,429 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 00:06:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 00:06:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 00:06:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 00:06:12,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-21 00:06:12,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-21 00:06:12,441 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2021-11-21 00:06:12,442 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2021-11-21 00:06:12,442 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2021-11-21 00:06:12,442 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2021-11-21 00:06:12,442 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2021-11-21 00:06:12,442 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2021-11-21 00:06:12,442 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2021-11-21 00:06:12,442 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2021-11-21 00:06:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2021-11-21 00:06:12,443 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2021-11-21 00:06:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 00:06:12,443 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 00:06:12,443 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 00:06:12,443 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 00:06:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2021-11-21 00:06:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2021-11-21 00:06:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-21 00:06:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-21 00:06:12,444 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-21 00:06:12,444 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-21 00:06:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2021-11-21 00:06:12,445 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2021-11-21 00:06:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 00:06:12,445 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 00:06:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2021-11-21 00:06:12,445 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2021-11-21 00:06:12,445 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2021-11-21 00:06:12,446 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2021-11-21 00:06:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-21 00:06:12,446 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-21 00:06:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 00:06:12,446 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 00:06:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2021-11-21 00:06:12,446 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2021-11-21 00:06:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2021-11-21 00:06:12,447 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2021-11-21 00:06:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:06:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 00:06:12,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 00:06:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 00:06:12,448 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 00:06:12,448 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 00:06:12,448 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 00:06:12,448 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2021-11-21 00:06:12,448 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2021-11-21 00:06:12,448 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-21 00:06:12,448 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-21 00:06:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2021-11-21 00:06:12,449 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2021-11-21 00:06:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2021-11-21 00:06:12,449 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2021-11-21 00:06:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-21 00:06:12,449 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-21 00:06:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2021-11-21 00:06:12,450 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2021-11-21 00:06:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 00:06:12,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 00:06:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-21 00:06:12,450 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-21 00:06:12,450 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 00:06:12,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 00:06:12,451 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2021-11-21 00:06:12,451 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2021-11-21 00:06:12,451 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2021-11-21 00:06:12,453 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2021-11-21 00:06:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-21 00:06:12,454 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-21 00:06:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-21 00:06:12,454 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-21 00:06:12,454 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-21 00:06:12,454 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-21 00:06:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2021-11-21 00:06:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2021-11-21 00:06:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:06:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 00:06:12,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 00:06:12,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_109 [2021-11-21 00:06:12,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_109 [2021-11-21 00:06:13,748 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:06:13,755 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:06:14,352 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 00:06:25,729 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 00:06:26,157 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:06:29,392 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:06:29,393 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 00:06:29,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:06:29 BoogieIcfgContainer [2021-11-21 00:06:29,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:06:29,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:06:29,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:06:29,411 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:06:29,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:06:03" (1/3) ... [2021-11-21 00:06:29,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7de19d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:06:29, skipping insertion in model container [2021-11-21 00:06:29,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:06:10" (2/3) ... [2021-11-21 00:06:29,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7de19d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:06:29, skipping insertion in model container [2021-11-21 00:06:29,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:06:29" (3/3) ... [2021-11-21 00:06:29,414 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2021-11-21 00:06:29,424 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:06:29,424 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:06:29,513 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:06:29,539 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 00:06:29,539 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:06:29,651 INFO L276 IsEmpty]: Start isEmpty. Operand has 3199 states, 1890 states have (on average 1.265079365079365) internal successors, (2391), 1927 states have internal predecessors, (2391), 1145 states have call successors, (1145), 164 states have call predecessors, (1145), 163 states have return successors, (1136), 1128 states have call predecessors, (1136), 1136 states have call successors, (1136) [2021-11-21 00:06:29,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-11-21 00:06:29,705 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:29,706 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:29,707 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:06:29,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:29,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1838098912, now seen corresponding path program 1 times [2021-11-21 00:06:29,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:29,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574600098] [2021-11-21 00:06:29,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:29,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:30,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2021-11-21 00:06:30,743 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:30,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574600098] [2021-11-21 00:06:30,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574600098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:30,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:30,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:06:30,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10454996] [2021-11-21 00:06:30,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:30,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:06:30,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:30,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:06:30,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:06:30,823 INFO L87 Difference]: Start difference. First operand has 3199 states, 1890 states have (on average 1.265079365079365) internal successors, (2391), 1927 states have internal predecessors, (2391), 1145 states have call successors, (1145), 164 states have call predecessors, (1145), 163 states have return successors, (1136), 1128 states have call predecessors, (1136), 1136 states have call successors, (1136) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-21 00:06:33,464 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 00:06:38,176 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 00:06:38,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:38,962 INFO L93 Difference]: Finished difference Result 9162 states and 13460 transitions. [2021-11-21 00:06:38,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:06:38,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 215 [2021-11-21 00:06:38,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:39,042 INFO L225 Difference]: With dead ends: 9162 [2021-11-21 00:06:39,043 INFO L226 Difference]: Without dead ends: 5930 [2021-11-21 00:06:39,072 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 00:06:39,076 INFO L933 BasicCegarLoop]: 5570 mSDtfsCounter, 4072 mSDsluCounter, 4596 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4072 SdHoareTripleChecker+Valid, 9659 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:39,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4072 Valid, 9659 Invalid, 1157 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1136 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2021-11-21 00:06:39,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5930 states. [2021-11-21 00:06:39,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5930 to 5927. [2021-11-21 00:06:39,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5927 states, 3542 states have (on average 1.258610954263128) internal successors, (4458), 3608 states have internal predecessors, (4458), 2070 states have call successors, (2070), 314 states have call predecessors, (2070), 314 states have return successors, (2070), 2054 states have call predecessors, (2070), 2070 states have call successors, (2070) [2021-11-21 00:06:39,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5927 states to 5927 states and 8598 transitions. [2021-11-21 00:06:39,921 INFO L78 Accepts]: Start accepts. Automaton has 5927 states and 8598 transitions. Word has length 215 [2021-11-21 00:06:39,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:39,923 INFO L470 AbstractCegarLoop]: Abstraction has 5927 states and 8598 transitions. [2021-11-21 00:06:39,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-21 00:06:39,924 INFO L276 IsEmpty]: Start isEmpty. Operand 5927 states and 8598 transitions. [2021-11-21 00:06:39,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-21 00:06:39,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:39,937 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:06:39,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:06:39,938 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:06:39,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:39,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1502747479, now seen corresponding path program 1 times [2021-11-21 00:06:39,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:39,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827806058] [2021-11-21 00:06:39,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:39,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:40,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2021-11-21 00:06:40,241 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:40,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827806058] [2021-11-21 00:06:40,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827806058] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:40,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:40,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:06:40,245 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372237185] [2021-11-21 00:06:40,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:40,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:06:40,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:40,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:06:40,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:06:40,249 INFO L87 Difference]: Start difference. First operand 5927 states and 8598 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-21 00:06:42,642 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 00:06:46,523 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:06:48,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:06:49,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:49,450 INFO L93 Difference]: Finished difference Result 17345 states and 25143 transitions. [2021-11-21 00:06:49,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:06:49,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 216 [2021-11-21 00:06:49,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:49,571 INFO L225 Difference]: With dead ends: 17345 [2021-11-21 00:06:49,571 INFO L226 Difference]: Without dead ends: 11453 [2021-11-21 00:06:49,615 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 00:06:49,616 INFO L933 BasicCegarLoop]: 5855 mSDtfsCounter, 4258 mSDsluCounter, 4501 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4258 SdHoareTripleChecker+Valid, 9862 SdHoareTripleChecker+Invalid, 1290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:49,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4258 Valid, 9862 Invalid, 1290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1260 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2021-11-21 00:06:49,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11453 states. [2021-11-21 00:06:50,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11453 to 11447. [2021-11-21 00:06:50,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11447 states, 6836 states have (on average 1.2504388531304858) internal successors, (8548), 6955 states have internal predecessors, (8548), 3994 states have call successors, (3994), 616 states have call predecessors, (3994), 616 states have return successors, (3994), 3968 states have call predecessors, (3994), 3994 states have call successors, (3994) [2021-11-21 00:06:50,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11447 states to 11447 states and 16536 transitions. [2021-11-21 00:06:50,919 INFO L78 Accepts]: Start accepts. Automaton has 11447 states and 16536 transitions. Word has length 216 [2021-11-21 00:06:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:50,922 INFO L470 AbstractCegarLoop]: Abstraction has 11447 states and 16536 transitions. [2021-11-21 00:06:50,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-21 00:06:50,924 INFO L276 IsEmpty]: Start isEmpty. Operand 11447 states and 16536 transitions. [2021-11-21 00:06:50,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-11-21 00:06:50,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:50,937 INFO L514 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 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] [2021-11-21 00:06:50,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:06:50,938 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:06:50,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:50,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1402256280, now seen corresponding path program 1 times [2021-11-21 00:06:50,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:06:50,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204808136] [2021-11-21 00:06:50,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:50,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:06:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:51,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2021-11-21 00:06:51,251 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:06:51,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204808136] [2021-11-21 00:06:51,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204808136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:51,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:51,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:06:51,252 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513436352] [2021-11-21 00:06:51,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:51,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:06:51,253 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:06:51,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:06:51,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:06:51,254 INFO L87 Difference]: Start difference. First operand 11447 states and 16536 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-21 00:06:54,500 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:06:56,979 WARN L515 Checker$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 00:06:58,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:58,892 INFO L93 Difference]: Finished difference Result 30970 states and 44538 transitions. [2021-11-21 00:06:58,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:06:58,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 231 [2021-11-21 00:06:58,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:59,078 INFO L225 Difference]: With dead ends: 30970 [2021-11-21 00:06:59,078 INFO L226 Difference]: Without dead ends: 19558 [2021-11-21 00:06:59,461 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 00:06:59,462 INFO L933 BasicCegarLoop]: 5005 mSDtfsCounter, 3301 mSDsluCounter, 4482 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3301 SdHoareTripleChecker+Valid, 9011 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:59,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3301 Valid, 9011 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1093 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2021-11-21 00:06:59,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19558 states. [2021-11-21 00:07:00,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19558 to 19547. [2021-11-21 00:07:00,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19547 states, 11634 states have (on average 1.2432525356713082) internal successors, (14464), 11844 states have internal predecessors, (14464), 6779 states have call successors, (6779), 1136 states have call predecessors, (6779), 1133 states have return successors, (6781), 6722 states have call predecessors, (6781), 6779 states have call successors, (6781) [2021-11-21 00:07:01,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19547 states to 19547 states and 28024 transitions. [2021-11-21 00:07:01,097 INFO L78 Accepts]: Start accepts. Automaton has 19547 states and 28024 transitions. Word has length 231 [2021-11-21 00:07:01,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:07:01,099 INFO L470 AbstractCegarLoop]: Abstraction has 19547 states and 28024 transitions. [2021-11-21 00:07:01,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-11-21 00:07:01,100 INFO L276 IsEmpty]: Start isEmpty. Operand 19547 states and 28024 transitions. [2021-11-21 00:07:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-21 00:07:01,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:07:01,114 INFO L514 BasicCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:07:01,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 00:07:01,114 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:07:01,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:07:01,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1578823007, now seen corresponding path program 1 times [2021-11-21 00:07:01,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:07:01,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394074174] [2021-11-21 00:07:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:01,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:07:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:01,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2021-11-21 00:07:01,479 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:07:01,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394074174] [2021-11-21 00:07:01,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394074174] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:07:01,479 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:07:01,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:07:01,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327588506] [2021-11-21 00:07:01,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:07:01,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:07:01,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:07:01,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:07:01,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:07:01,482 INFO L87 Difference]: Start difference. First operand 19547 states and 28024 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-21 00:07:05,699 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:07:08,275 WARN L515 Checker$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 00:07:10,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:07:10,393 INFO L93 Difference]: Finished difference Result 56418 states and 80845 transitions. [2021-11-21 00:07:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:07:10,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 236 [2021-11-21 00:07:10,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:07:10,662 INFO L225 Difference]: With dead ends: 56418 [2021-11-21 00:07:10,663 INFO L226 Difference]: Without dead ends: 36906 [2021-11-21 00:07:10,941 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 00:07:10,946 INFO L933 BasicCegarLoop]: 6993 mSDtfsCounter, 4421 mSDsluCounter, 4550 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4421 SdHoareTripleChecker+Valid, 11034 SdHoareTripleChecker+Invalid, 1430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:07:10,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4421 Valid, 11034 Invalid, 1430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1415 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2021-11-21 00:07:11,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36906 states. [2021-11-21 00:07:14,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36906 to 36884. [2021-11-21 00:07:14,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36884 states, 22002 states have (on average 1.241796200345423) internal successors, (27322), 22417 states have internal predecessors, (27322), 12723 states have call successors, (12723), 2164 states have call predecessors, (12723), 2158 states have return successors, (12727), 12600 states have call predecessors, (12727), 12723 states have call successors, (12727) [2021-11-21 00:07:14,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36884 states to 36884 states and 52772 transitions. [2021-11-21 00:07:14,401 INFO L78 Accepts]: Start accepts. Automaton has 36884 states and 52772 transitions. Word has length 236 [2021-11-21 00:07:14,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:07:14,402 INFO L470 AbstractCegarLoop]: Abstraction has 36884 states and 52772 transitions. [2021-11-21 00:07:14,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-21 00:07:14,403 INFO L276 IsEmpty]: Start isEmpty. Operand 36884 states and 52772 transitions. [2021-11-21 00:07:14,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-11-21 00:07:14,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:07:14,423 INFO L514 BasicCegarLoop]: trace histogram [20, 17, 17, 17, 17, 17, 17, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:07:14,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:07:14,424 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:07:14,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:07:14,424 INFO L85 PathProgramCache]: Analyzing trace with hash 2087436827, now seen corresponding path program 1 times [2021-11-21 00:07:14,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:07:14,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078025659] [2021-11-21 00:07:14,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:14,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:07:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:15,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1212 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1206 trivial. 0 not checked. [2021-11-21 00:07:15,122 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:07:15,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078025659] [2021-11-21 00:07:15,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078025659] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:07:15,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:07:15,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:07:15,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250205400] [2021-11-21 00:07:15,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:07:15,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:07:15,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:07:15,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:07:15,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:07:15,126 INFO L87 Difference]: Start difference. First operand 36884 states and 52772 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-21 00:07:20,719 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 00:07:22,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:07:22,440 INFO L93 Difference]: Finished difference Result 74294 states and 106139 transitions. [2021-11-21 00:07:22,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:07:22,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 253 [2021-11-21 00:07:22,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:07:22,841 INFO L225 Difference]: With dead ends: 74294 [2021-11-21 00:07:22,841 INFO L226 Difference]: Without dead ends: 37445 [2021-11-21 00:07:23,003 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 00:07:23,004 INFO L933 BasicCegarLoop]: 4164 mSDtfsCounter, 567 mSDsluCounter, 4542 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 8196 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:07:23,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [567 Valid, 8196 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1064 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2021-11-21 00:07:23,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37445 states. [2021-11-21 00:07:25,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37445 to 37445. [2021-11-21 00:07:25,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37445 states, 22358 states have (on average 1.2402272117362914) internal successors, (27729), 22776 states have internal predecessors, (27729), 12840 states have call successors, (12840), 2252 states have call predecessors, (12840), 2246 states have return successors, (12844), 12717 states have call predecessors, (12844), 12840 states have call successors, (12844) [2021-11-21 00:07:26,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37445 states to 37445 states and 53413 transitions. [2021-11-21 00:07:26,168 INFO L78 Accepts]: Start accepts. Automaton has 37445 states and 53413 transitions. Word has length 253 [2021-11-21 00:07:26,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:07:26,174 INFO L470 AbstractCegarLoop]: Abstraction has 37445 states and 53413 transitions. [2021-11-21 00:07:26,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-21 00:07:26,175 INFO L276 IsEmpty]: Start isEmpty. Operand 37445 states and 53413 transitions. [2021-11-21 00:07:26,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-11-21 00:07:26,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:07:26,189 INFO L514 BasicCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 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] [2021-11-21 00:07:26,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 00:07:26,189 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:07:26,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:07:26,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1311793343, now seen corresponding path program 1 times [2021-11-21 00:07:26,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:07:26,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42686027] [2021-11-21 00:07:26,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:26,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:07:26,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:26,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2021-11-21 00:07:26,834 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:07:26,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42686027] [2021-11-21 00:07:26,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42686027] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:07:26,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:07:26,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:07:26,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897154264] [2021-11-21 00:07:26,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:07:26,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:07:26,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:07:26,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:07:26,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:07:26,838 INFO L87 Difference]: Start difference. First operand 37445 states and 53413 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-21 00:07:31,897 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 00:07:34,224 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 00:07:36,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:07:36,125 INFO L93 Difference]: Finished difference Result 90597 states and 129302 transitions. [2021-11-21 00:07:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:07:36,129 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 264 [2021-11-21 00:07:36,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:07:36,400 INFO L225 Difference]: With dead ends: 90597 [2021-11-21 00:07:36,401 INFO L226 Difference]: Without dead ends: 53620 [2021-11-21 00:07:36,535 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 00:07:36,537 INFO L933 BasicCegarLoop]: 6341 mSDtfsCounter, 3999 mSDsluCounter, 4524 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3999 SdHoareTripleChecker+Valid, 10358 SdHoareTripleChecker+Invalid, 1360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:07:36,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3999 Valid, 10358 Invalid, 1360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1343 Invalid, 2 Unknown, 0 Unchecked, 8.0s Time] [2021-11-21 00:07:36,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53620 states. [2021-11-21 00:07:39,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53620 to 53610. [2021-11-21 00:07:39,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53610 states, 32046 states have (on average 1.2391874180865006) internal successors, (39711), 32633 states have internal predecessors, (39711), 18320 states have call successors, (18320), 3251 states have call predecessors, (18320), 3243 states have return successors, (18326), 18144 states have call predecessors, (18326), 18320 states have call successors, (18326) [2021-11-21 00:07:39,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53610 states to 53610 states and 76357 transitions. [2021-11-21 00:07:39,784 INFO L78 Accepts]: Start accepts. Automaton has 53610 states and 76357 transitions. Word has length 264 [2021-11-21 00:07:39,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:07:39,785 INFO L470 AbstractCegarLoop]: Abstraction has 53610 states and 76357 transitions. [2021-11-21 00:07:39,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-11-21 00:07:39,785 INFO L276 IsEmpty]: Start isEmpty. Operand 53610 states and 76357 transitions. [2021-11-21 00:07:39,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-11-21 00:07:39,817 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:07:39,818 INFO L514 BasicCegarLoop]: trace histogram [23, 17, 17, 17, 17, 17, 17, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:07:39,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 00:07:39,819 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:07:39,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:07:39,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1556361220, now seen corresponding path program 1 times [2021-11-21 00:07:39,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:07:39,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885142522] [2021-11-21 00:07:39,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:39,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:07:39,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:40,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1381 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1361 trivial. 0 not checked. [2021-11-21 00:07:40,108 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:07:40,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885142522] [2021-11-21 00:07:40,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885142522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:07:40,108 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:07:40,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:07:40,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20546757] [2021-11-21 00:07:40,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:07:40,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:07:40,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:07:40,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:07:40,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:07:40,111 INFO L87 Difference]: Start difference. First operand 53610 states and 76357 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-21 00:07:44,788 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 00:07:47,866 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 00:07:50,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:07:50,698 INFO L93 Difference]: Finished difference Result 131289 states and 187108 transitions. [2021-11-21 00:07:50,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:07:50,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 297 [2021-11-21 00:07:50,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:07:51,032 INFO L225 Difference]: With dead ends: 131289 [2021-11-21 00:07:51,032 INFO L226 Difference]: Without dead ends: 78147 [2021-11-21 00:07:51,172 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 00:07:51,173 INFO L933 BasicCegarLoop]: 8004 mSDtfsCounter, 4443 mSDsluCounter, 4549 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4443 SdHoareTripleChecker+Valid, 12043 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:07:51,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4443 Valid, 12043 Invalid, 1594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1584 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2021-11-21 00:07:51,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78147 states. [2021-11-21 00:07:54,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78147 to 78121. [2021-11-21 00:07:54,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78121 states, 46721 states have (on average 1.2390145758866462) internal successors, (57888), 47590 states have internal predecessors, (57888), 26659 states have call successors, (26659), 4752 states have call predecessors, (26659), 4740 states have return successors, (26668), 26391 states have call predecessors, (26668), 26659 states have call successors, (26668) [2021-11-21 00:07:55,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78121 states to 78121 states and 111215 transitions. [2021-11-21 00:07:55,492 INFO L78 Accepts]: Start accepts. Automaton has 78121 states and 111215 transitions. Word has length 297 [2021-11-21 00:07:55,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:07:55,493 INFO L470 AbstractCegarLoop]: Abstraction has 78121 states and 111215 transitions. [2021-11-21 00:07:55,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2021-11-21 00:07:55,494 INFO L276 IsEmpty]: Start isEmpty. Operand 78121 states and 111215 transitions. [2021-11-21 00:07:55,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-11-21 00:07:55,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:07:55,537 INFO L514 BasicCegarLoop]: trace histogram [23, 17, 17, 17, 17, 17, 17, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:07:55,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 00:07:55,537 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:07:55,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:07:55,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1886152508, now seen corresponding path program 1 times [2021-11-21 00:07:55,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:07:55,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385292246] [2021-11-21 00:07:55,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:07:55,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:07:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:07:55,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1432 trivial. 0 not checked. [2021-11-21 00:07:55,833 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:07:55,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385292246] [2021-11-21 00:07:55,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385292246] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:07:55,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:07:55,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:07:55,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266467457] [2021-11-21 00:07:55,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:07:55,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:07:55,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:07:55,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:07:55,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:07:55,836 INFO L87 Difference]: Start difference. First operand 78121 states and 111215 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-21 00:08:00,337 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 00:08:02,775 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 00:08:05,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:05,405 INFO L93 Difference]: Finished difference Result 155802 states and 222265 transitions. [2021-11-21 00:08:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:08:05,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 326 [2021-11-21 00:08:05,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:05,923 INFO L225 Difference]: With dead ends: 155802 [2021-11-21 00:08:05,923 INFO L226 Difference]: Without dead ends: 78149 [2021-11-21 00:08:06,231 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 00:08:06,232 INFO L933 BasicCegarLoop]: 4066 mSDtfsCounter, 0 mSDsluCounter, 4578 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8127 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:06,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8127 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1046 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2021-11-21 00:08:06,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78149 states. [2021-11-21 00:08:10,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78149 to 78149. [2021-11-21 00:08:10,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78149 states, 46749 states have (on average 1.2388714197095125) internal successors, (57916), 47618 states have internal predecessors, (57916), 26659 states have call successors, (26659), 4752 states have call predecessors, (26659), 4740 states have return successors, (26668), 26391 states have call predecessors, (26668), 26659 states have call successors, (26668) [2021-11-21 00:08:11,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78149 states to 78149 states and 111243 transitions. [2021-11-21 00:08:11,026 INFO L78 Accepts]: Start accepts. Automaton has 78149 states and 111243 transitions. Word has length 326 [2021-11-21 00:08:11,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:08:11,027 INFO L470 AbstractCegarLoop]: Abstraction has 78149 states and 111243 transitions. [2021-11-21 00:08:11,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-21 00:08:11,028 INFO L276 IsEmpty]: Start isEmpty. Operand 78149 states and 111243 transitions. [2021-11-21 00:08:11,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-11-21 00:08:11,067 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:08:11,068 INFO L514 BasicCegarLoop]: trace histogram [23, 17, 17, 17, 17, 17, 17, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:08:11,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 00:08:11,069 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:08:11,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:08:11,069 INFO L85 PathProgramCache]: Analyzing trace with hash -514077272, now seen corresponding path program 1 times [2021-11-21 00:08:11,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:08:11,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203230779] [2021-11-21 00:08:11,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:08:11,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:08:11,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:08:12,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2021-11-21 00:08:12,601 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:08:12,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203230779] [2021-11-21 00:08:12,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203230779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:08:12,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:08:12,602 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 00:08:12,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092437286] [2021-11-21 00:08:12,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:08:12,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:08:12,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:08:12,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:08:12,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:08:12,604 INFO L87 Difference]: Start difference. First operand 78149 states and 111243 transitions. Second operand has 6 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2021-11-21 00:08:21,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:08:23,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 00:08:27,369 WARN L515 Checker$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 00:08:36,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:08:36,692 INFO L93 Difference]: Finished difference Result 146619 states and 209342 transitions. [2021-11-21 00:08:36,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 00:08:36,693 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (38), 2 states have call predecessors, (38), 2 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 327 [2021-11-21 00:08:36,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:08:37,389 INFO L225 Difference]: With dead ends: 146619 [2021-11-21 00:08:37,389 INFO L226 Difference]: Without dead ends: 146617 [2021-11-21 00:08:37,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:08:37,460 INFO L933 BasicCegarLoop]: 5264 mSDtfsCounter, 3910 mSDsluCounter, 20008 mSDsCounter, 0 mSdLazyCounter, 4691 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3911 SdHoareTripleChecker+Valid, 23141 SdHoareTripleChecker+Invalid, 4697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4691 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:08:37,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3911 Valid, 23141 Invalid, 4697 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 4691 Invalid, 2 Unknown, 0 Unchecked, 18.2s Time] [2021-11-21 00:08:37,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146617 states.