./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW/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_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:13:15,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:13:15,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:13:15,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:13:15,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:13:15,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:13:15,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:13:15,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:13:15,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:13:15,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:13:15,551 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:13:15,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:13:15,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:13:15,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:13:15,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:13:15,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:13:15,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:13:15,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:13:15,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:13:15,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:13:15,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:13:15,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:13:15,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:13:15,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:13:15,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:13:15,569 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:13:15,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:13:15,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:13:15,571 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:13:15,572 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:13:15,572 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:13:15,573 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:13:15,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:13:15,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:13:15,575 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:13:15,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:13:15,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:13:15,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:13:15,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:13:15,578 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:13:15,579 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:13:15,581 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:13:15,619 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:13:15,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:13:15,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:13:15,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:13:15,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:13:15,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:13:15,627 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:13:15,627 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:13:15,627 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:13:15,627 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:13:15,628 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:13:15,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:13:15,629 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:13:15,629 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:13:15,630 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:13:15,630 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:13:15,630 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:13:15,630 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:13:15,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:13:15,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:13:15,632 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:13:15,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:13:15,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:13:15,633 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:13:15,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:13:15,633 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:13:15,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:13:15,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:13:15,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:13:15,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:13:15,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:13:15,636 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:13:15,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:13:15,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:13:15,636 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:13:15,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:13:15,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:13:15,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:13:15,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06a1a5884933bcba18239575fcdd90e80287d1e97f83c153d30cbf6ef2bf14a2 [2022-11-23 14:13:15,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:13:15,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:13:15,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:13:15,979 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:13:15,980 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:13:15,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-23 14:13:18,991 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:13:19,833 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:13:19,834 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-23 14:13:19,893 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW/data/a5ac23c70/b2636166912c4c49835023b33f62a4cb/FLAGdd4fec369 [2022-11-23 14:13:19,910 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW/data/a5ac23c70/b2636166912c4c49835023b33f62a4cb [2022-11-23 14:13:19,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:13:19,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:13:19,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:13:19,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:13:19,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:13:19,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:19" (1/1) ... [2022-11-23 14:13:19,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e86096c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:19, skipping insertion in model container [2022-11-23 14:13:19,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:13:19" (1/1) ... [2022-11-23 14:13:19,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:13:20,166 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:13:25,878 WARN L237 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_a7940acd-c8e1-4a0a-8883-254c8456316e/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] [2022-11-23 14:13:25,884 WARN L237 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_a7940acd-c8e1-4a0a-8883-254c8456316e/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] [2022-11-23 14:13:25,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:13:26,035 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:13:26,694 WARN L237 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_a7940acd-c8e1-4a0a-8883-254c8456316e/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] [2022-11-23 14:13:26,694 WARN L237 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_a7940acd-c8e1-4a0a-8883-254c8456316e/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] [2022-11-23 14:13:26,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:13:27,126 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:13:27,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:27 WrapperNode [2022-11-23 14:13:27,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:13:27,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:13:27,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:13:27,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:13:27,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:27" (1/1) ... [2022-11-23 14:13:27,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:27" (1/1) ... [2022-11-23 14:13:27,714 INFO L138 Inliner]: procedures = 696, calls = 4163, calls flagged for inlining = 369, calls inlined = 343, statements flattened = 10365 [2022-11-23 14:13:27,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:13:27,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:13:27,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:13:27,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:13:27,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:27" (1/1) ... [2022-11-23 14:13:27,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:27" (1/1) ... [2022-11-23 14:13:27,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:27" (1/1) ... [2022-11-23 14:13:27,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:27" (1/1) ... [2022-11-23 14:13:28,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:27" (1/1) ... [2022-11-23 14:13:28,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:27" (1/1) ... [2022-11-23 14:13:28,188 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:27" (1/1) ... [2022-11-23 14:13:28,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:27" (1/1) ... [2022-11-23 14:13:28,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:13:28,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:13:28,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:13:28,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:13:28,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:27" (1/1) ... [2022-11-23 14:13:28,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:13:28,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:13:28,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:13:28,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7940acd-c8e1-4a0a-8883-254c8456316e/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:13:28,413 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-23 14:13:28,413 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-23 14:13:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-23 14:13:28,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-23 14:13:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_core [2022-11-23 14:13:28,414 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_core [2022-11-23 14:13:28,414 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2022-11-23 14:13:28,414 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2022-11-23 14:13:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_post_phy_linkchg [2022-11-23 14:13:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_post_phy_linkchg [2022-11-23 14:13:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 14:13:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 14:13:28,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 14:13:28,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 14:13:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-23 14:13:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-23 14:13:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 14:13:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 14:13:28,416 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_rx_ring [2022-11-23 14:13:28,416 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_rx_ring [2022-11-23 14:13:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-23 14:13:28,417 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-23 14:13:28,417 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 14:13:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 14:13:28,418 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 14:13:28,418 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 14:13:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_current_addr [2022-11-23 14:13:28,419 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_current_addr [2022-11-23 14:13:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 14:13:28,420 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 14:13:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_mac [2022-11-23 14:13:28,420 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_mac [2022-11-23 14:13:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_disable [2022-11-23 14:13:28,421 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_disable [2022-11-23 14:13:28,421 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_stop_phy_polling [2022-11-23 14:13:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_stop_phy_polling [2022-11-23 14:13:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 14:13:28,422 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 14:13:28,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 14:13:28,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 14:13:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 14:13:28,423 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 14:13:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-23 14:13:28,423 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-23 14:13:28,423 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 14:13:28,424 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 14:13:28,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 14:13:28,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 14:13:28,425 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 14:13:28,425 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 14:13:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-23 14:13:28,426 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-23 14:13:28,426 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-23 14:13:28,427 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-23 14:13:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:13:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-23 14:13:28,427 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-23 14:13:28,427 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_speed_and_duplex [2022-11-23 14:13:28,427 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_speed_and_duplex [2022-11-23 14:13:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-11-23 14:13:28,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1c_adapter [2022-11-23 14:13:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-23 14:13:28,428 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-23 14:13:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_close [2022-11-23 14:13:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_close [2022-11-23 14:13:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 14:13:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 14:13:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_110 [2022-11-23 14:13:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_110 [2022-11-23 14:13:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_reg [2022-11-23 14:13:28,430 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_reg [2022-11-23 14:13:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 14:13:28,431 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_init [2022-11-23 14:13:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_init [2022-11-23 14:13:28,431 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_dbg [2022-11-23 14:13:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_dbg [2022-11-23 14:13:28,431 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_regs_len [2022-11-23 14:13:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_regs_len [2022-11-23 14:13:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 14:13:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 14:13:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 14:13:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 14:13:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_ring_resources [2022-11-23 14:13:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_ring_resources [2022-11-23 14:13:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 14:13:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 14:13:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 14:13:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:13:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 14:13:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 14:13:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-23 14:13:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-23 14:13:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 14:13:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 14:13:28,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 14:13:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 14:13:28,436 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-23 14:13:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-23 14:13:28,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 14:13:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 14:13:28,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 14:13:28,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 14:13:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 14:13:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 14:13:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 14:13:28,438 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 14:13:28,438 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_multi [2022-11-23 14:13:28,439 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_multi [2022-11-23 14:13:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 14:13:28,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 14:13:28,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 14:13:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 14:13:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 14:13:28,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-23 14:13:28,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-23 14:13:28,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-23 14:13:28,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-23 14:13:28,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:13:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-23 14:13:28,454 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-23 14:13:28,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 14:13:28,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 14:13:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 14:13:28,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 14:13:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 14:13:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_start_phy_polling [2022-11-23 14:13:28,455 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_start_phy_polling [2022-11-23 14:13:28,455 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-23 14:13:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-23 14:13:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 14:13:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:13:28,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 14:13:28,456 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-23 14:13:28,457 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-23 14:13:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:13:28,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 14:13:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-23 14:13:28,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-23 14:13:28,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-23 14:13:28,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-23 14:13:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-23 14:13:28,458 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-23 14:13:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_core [2022-11-23 14:13:28,458 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_core [2022-11-23 14:13:28,458 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_until_idle [2022-11-23 14:13:28,459 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_until_idle [2022-11-23 14:13:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-23 14:13:28,459 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-23 14:13:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-23 14:13:28,459 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-23 14:13:28,459 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 14:13:28,460 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 14:13:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_link_status [2022-11-23 14:13:28,461 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_link_status [2022-11-23 14:13:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 14:13:28,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 14:13:28,461 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_alloc_rx_buffer [2022-11-23 14:13:28,461 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_alloc_rx_buffer [2022-11-23 14:13:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-11-23 14:13:28,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1c_adapter [2022-11-23 14:13:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_io_resume [2022-11-23 14:13:28,462 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_io_resume [2022-11-23 14:13:28,462 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_dbg [2022-11-23 14:13:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_dbg [2022-11-23 14:13:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_wait_mdio_idle [2022-11-23 14:13:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_wait_mdio_idle [2022-11-23 14:13:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-23 14:13:28,463 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-23 14:13:28,463 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 14:13:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 14:13:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_vlan_mode [2022-11-23 14:13:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_vlan_mode [2022-11-23 14:13:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tx_buffer [2022-11-23 14:13:28,464 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tx_buffer [2022-11-23 14:13:28,464 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_down [2022-11-23 14:13:28,465 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_down [2022-11-23 14:13:28,465 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_suspend [2022-11-23 14:13:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_suspend [2022-11-23 14:13:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:13:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:13:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-23 14:13:28,466 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-23 14:13:28,466 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-23 14:13:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-23 14:13:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-23 14:13:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-23 14:13:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 14:13:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 14:13:28,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 14:13:28,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 14:13:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 14:13:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-23 14:13:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-23 14:13:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-23 14:13:28,468 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_tx_timeout [2022-11-23 14:13:28,468 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_tx_timeout [2022-11-23 14:13:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-23 14:13:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-23 14:13:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 14:13:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 14:13:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_tpd [2022-11-23 14:13:28,469 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_tpd [2022-11-23 14:13:28,469 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_hw_set_mac_addr [2022-11-23 14:13:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_hw_set_mac_addr [2022-11-23 14:13:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-23 14:13:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-23 14:13:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-23 14:13:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-23 14:13:28,470 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-23 14:13:28,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-23 14:13:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_restart_autoneg [2022-11-23 14:13:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_restart_autoneg [2022-11-23 14:13:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_rxbufsize [2022-11-23 14:13:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_rxbufsize [2022-11-23 14:13:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 14:13:28,471 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 14:13:28,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 14:13:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 14:13:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_free_irq [2022-11-23 14:13:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_free_irq [2022-11-23 14:13:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-23 14:13:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-23 14:13:28,472 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_write_phy_ext [2022-11-23 14:13:28,472 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_write_phy_ext [2022-11-23 14:13:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-23 14:13:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-23 14:13:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 14:13:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 14:13:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:13:28,473 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-23 14:13:28,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-23 14:13:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_nway_reset [2022-11-23 14:13:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_nway_reset [2022-11-23 14:13:28,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_118 [2022-11-23 14:13:28,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_118 [2022-11-23 14:13:28,475 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_dma_ring [2022-11-23 14:13:28,479 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_dma_ring [2022-11-23 14:13:28,479 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 14:13:28,479 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 14:13:28,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 14:13:28,479 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_irq_enable [2022-11-23 14:13:28,479 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_irq_enable [2022-11-23 14:13:28,480 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-23 14:13:28,480 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-23 14:13:28,480 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_get_eeprom_len [2022-11-23 14:13:28,481 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_get_eeprom_len [2022-11-23 14:13:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_104 [2022-11-23 14:13:28,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_104 [2022-11-23 14:13:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 14:13:28,482 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-23 14:13:28,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-23 14:13:28,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-23 14:13:28,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-23 14:13:28,483 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_check_eeprom_exist [2022-11-23 14:13:28,483 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_check_eeprom_exist [2022-11-23 14:13:28,483 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-23 14:13:28,483 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-23 14:13:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-23 14:13:28,484 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-23 14:13:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_netpoll [2022-11-23 14:13:28,484 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_netpoll [2022-11-23 14:13:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 14:13:28,484 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 14:13:28,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 14:13:28,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 14:13:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 14:13:28,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 14:13:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_configure [2022-11-23 14:13:28,485 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_configure [2022-11-23 14:13:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2022-11-23 14:13:28,485 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2022-11-23 14:13:28,485 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_tx_ring [2022-11-23 14:13:28,485 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_tx_ring [2022-11-23 14:13:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_reset [2022-11-23 14:13:28,486 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_reset [2022-11-23 14:13:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_open [2022-11-23 14:13:28,486 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_open [2022-11-23 14:13:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 14:13:28,486 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 14:13:28,486 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 14:13:28,487 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 14:13:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2022-11-23 14:13:28,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1c_driver_exit_16_2 [2022-11-23 14:13:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-11-23 14:13:28,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-11-23 14:13:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-23 14:13:28,487 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-23 14:13:28,487 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_intr [2022-11-23 14:13:28,488 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_intr [2022-11-23 14:13:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 14:13:28,488 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 14:13:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_power_saving [2022-11-23 14:13:28,488 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_power_saving [2022-11-23 14:13:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_phy_setup_adv [2022-11-23 14:13:28,488 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_phy_setup_adv [2022-11-23 14:13:28,488 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-23 14:13:28,489 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-23 14:13:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 14:13:28,489 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 14:13:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_clean_buffer [2022-11-23 14:13:28,489 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_clean_buffer [2022-11-23 14:13:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_remove [2022-11-23 14:13:28,489 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_remove [2022-11-23 14:13:28,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:13:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 14:13:28,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 14:13:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-23 14:13:28,490 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-23 14:13:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-23 14:13:28,490 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-23 14:13:28,490 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_up [2022-11-23 14:13:28,491 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_up [2022-11-23 14:13:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-23 14:13:28,491 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-23 14:13:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_disable_l0s_l1 [2022-11-23 14:13:28,491 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_disable_l0s_l1 [2022-11-23 14:13:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_resume [2022-11-23 14:13:28,491 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_resume [2022-11-23 14:13:28,491 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-23 14:13:28,492 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-23 14:13:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_reset_pcie [2022-11-23 14:13:28,492 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_reset_pcie [2022-11-23 14:13:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 14:13:28,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 14:13:28,492 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-23 14:13:28,492 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-23 14:13:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 14:13:28,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-23 14:13:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_shutdown [2022-11-23 14:13:28,493 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_shutdown [2022-11-23 14:13:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_set_aspm [2022-11-23 14:13:28,493 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_set_aspm [2022-11-23 14:13:28,493 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-23 14:13:28,493 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-23 14:13:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-23 14:13:28,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-23 14:13:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-23 14:13:28,494 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-23 14:13:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure atl1c_read_phy_reg [2022-11-23 14:13:28,494 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1c_read_phy_reg [2022-11-23 14:13:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:13:28,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 14:13:28,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 14:13:28,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_109 [2022-11-23 14:13:28,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_109 [2022-11-23 14:13:29,965 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:13:30,017 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:13:30,714 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 14:13:42,842 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 14:13:43,484 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:13:47,476 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:13:47,476 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:13:47,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:47 BoogieIcfgContainer [2022-11-23 14:13:47,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:13:47,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:13:47,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:13:47,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:13:47,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:13:19" (1/3) ... [2022-11-23 14:13:47,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315579c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:13:47, skipping insertion in model container [2022-11-23 14:13:47,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:13:27" (2/3) ... [2022-11-23 14:13:47,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315579c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:13:47, skipping insertion in model container [2022-11-23 14:13:47,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:13:47" (3/3) ... [2022-11-23 14:13:47,501 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1c-atl1c.cil.i [2022-11-23 14:13:47,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:13:47,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:13:47,676 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:13:47,687 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2bd53b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:13:47,688 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:13:47,704 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) [2022-11-23 14:13:47,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-23 14:13:47,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:13:47,749 INFO L195 NwaCegarLoop]: 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] [2022-11-23 14:13:47,754 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:13:47,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:13:47,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1014206776, now seen corresponding path program 1 times [2022-11-23 14:13:47,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:13:47,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420657615] [2022-11-23 14:13:47,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:13:47,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:13:48,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:13:49,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-23 14:13:49,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:13:49,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420657615] [2022-11-23 14:13:49,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420657615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:13:49,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:13:49,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:13:49,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490929175] [2022-11-23 14:13:49,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:13:49,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:13:49,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:13:49,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:13:49,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:13:49,227 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) [2022-11-23 14:13:51,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:13:56,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:13:57,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:13:57,906 INFO L93 Difference]: Finished difference Result 9162 states and 13460 transitions. [2022-11-23 14:13:57,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:13:57,909 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 [2022-11-23 14:13:57,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:13:57,991 INFO L225 Difference]: With dead ends: 9162 [2022-11-23 14:13:57,991 INFO L226 Difference]: Without dead ends: 5930 [2022-11-23 14:13:58,021 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:13:58,025 INFO L413 NwaCegarLoop]: 5353 mSDtfsCounter, 4072 mSDsluCounter, 4097 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4072 SdHoareTripleChecker+Valid, 9450 SdHoareTripleChecker+Invalid, 1133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:13:58,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4072 Valid, 9450 Invalid, 1133 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 1112 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-11-23 14:13:58,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5930 states. [2022-11-23 14:13:58,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5930 to 5927. [2022-11-23 14:13:58,681 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) [2022-11-23 14:13:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5927 states to 5927 states and 8598 transitions. [2022-11-23 14:13:58,743 INFO L78 Accepts]: Start accepts. Automaton has 5927 states and 8598 transitions. Word has length 215 [2022-11-23 14:13:58,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:13:58,747 INFO L495 AbstractCegarLoop]: Abstraction has 5927 states and 8598 transitions. [2022-11-23 14:13:58,748 INFO L496 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) [2022-11-23 14:13:58,748 INFO L276 IsEmpty]: Start isEmpty. Operand 5927 states and 8598 transitions. [2022-11-23 14:13:58,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-23 14:13:58,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:13:58,773 INFO L195 NwaCegarLoop]: 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] [2022-11-23 14:13:58,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:13:58,774 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:13:58,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:13:58,775 INFO L85 PathProgramCache]: Analyzing trace with hash 421245714, now seen corresponding path program 1 times [2022-11-23 14:13:58,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:13:58,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508452960] [2022-11-23 14:13:58,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:13:58,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:13:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:13:59,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-23 14:13:59,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:13:59,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508452960] [2022-11-23 14:13:59,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508452960] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:13:59,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:13:59,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:13:59,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733805358] [2022-11-23 14:13:59,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:13:59,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:13:59,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:13:59,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:13:59,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:13:59,458 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) [2022-11-23 14:14:01,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:14:07,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:14:08,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:14:08,372 INFO L93 Difference]: Finished difference Result 17345 states and 25143 transitions. [2022-11-23 14:14:08,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:14:08,373 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 [2022-11-23 14:14:08,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:14:08,465 INFO L225 Difference]: With dead ends: 17345 [2022-11-23 14:14:08,465 INFO L226 Difference]: Without dead ends: 11453 [2022-11-23 14:14:08,499 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:14:08,501 INFO L413 NwaCegarLoop]: 6101 mSDtfsCounter, 4258 mSDsluCounter, 4015 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4258 SdHoareTripleChecker+Valid, 10116 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:14:08,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4258 Valid, 10116 Invalid, 1297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 1267 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-11-23 14:14:08,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11453 states. [2022-11-23 14:14:09,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11453 to 11447. [2022-11-23 14:14:09,432 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) [2022-11-23 14:14:09,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11447 states to 11447 states and 16536 transitions. [2022-11-23 14:14:09,491 INFO L78 Accepts]: Start accepts. Automaton has 11447 states and 16536 transitions. Word has length 216 [2022-11-23 14:14:09,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:14:09,492 INFO L495 AbstractCegarLoop]: Abstraction has 11447 states and 16536 transitions. [2022-11-23 14:14:09,495 INFO L496 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) [2022-11-23 14:14:09,495 INFO L276 IsEmpty]: Start isEmpty. Operand 11447 states and 16536 transitions. [2022-11-23 14:14:09,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-11-23 14:14:09,506 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:14:09,506 INFO L195 NwaCegarLoop]: 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] [2022-11-23 14:14:09,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:14:09,510 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:14:09,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:14:09,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1444795007, now seen corresponding path program 1 times [2022-11-23 14:14:09,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:14:09,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215923107] [2022-11-23 14:14:09,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:14:09,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:14:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:14:09,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2022-11-23 14:14:09,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:14:09,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215923107] [2022-11-23 14:14:09,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215923107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:14:09,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:14:09,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:14:09,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968642778] [2022-11-23 14:14:09,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:14:09,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:14:09,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:14:09,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:14:09,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:14:09,969 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) [2022-11-23 14:14:12,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:14:15,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:14:17,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:14:19,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:14:19,874 INFO L93 Difference]: Finished difference Result 31006 states and 44584 transitions. [2022-11-23 14:14:19,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:14:19,875 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 [2022-11-23 14:14:19,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:14:20,047 INFO L225 Difference]: With dead ends: 31006 [2022-11-23 14:14:20,048 INFO L226 Difference]: Without dead ends: 19594 [2022-11-23 14:14:20,123 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:14:20,124 INFO L413 NwaCegarLoop]: 4883 mSDtfsCounter, 3325 mSDsluCounter, 4014 mSDsCounter, 0 mSdLazyCounter, 1072 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3325 SdHoareTripleChecker+Valid, 8897 SdHoareTripleChecker+Invalid, 1080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1072 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-23 14:14:20,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3325 Valid, 8897 Invalid, 1080 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1072 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2022-11-23 14:14:20,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19594 states. [2022-11-23 14:14:21,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19594 to 19587. [2022-11-23 14:14:21,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19587 states, 11654 states have (on average 1.2430066929809507) internal successors, (14486), 11862 states have internal predecessors, (14486), 6793 states have call successors, (6793), 1142 states have call predecessors, (6793), 1139 states have return successors, (6795), 6738 states have call predecessors, (6795), 6793 states have call successors, (6795) [2022-11-23 14:14:21,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19587 states to 19587 states and 28074 transitions. [2022-11-23 14:14:21,727 INFO L78 Accepts]: Start accepts. Automaton has 19587 states and 28074 transitions. Word has length 231 [2022-11-23 14:14:21,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:14:21,729 INFO L495 AbstractCegarLoop]: Abstraction has 19587 states and 28074 transitions. [2022-11-23 14:14:21,729 INFO L496 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) [2022-11-23 14:14:21,729 INFO L276 IsEmpty]: Start isEmpty. Operand 19587 states and 28074 transitions. [2022-11-23 14:14:21,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-11-23 14:14:21,741 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:14:21,741 INFO L195 NwaCegarLoop]: 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] [2022-11-23 14:14:21,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 14:14:21,742 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:14:21,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:14:21,744 INFO L85 PathProgramCache]: Analyzing trace with hash 1065297053, now seen corresponding path program 1 times [2022-11-23 14:14:21,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:14:21,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526838976] [2022-11-23 14:14:21,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:14:21,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:14:22,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:14:22,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-23 14:14:22,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:14:22,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526838976] [2022-11-23 14:14:22,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526838976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:14:22,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:14:22,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:14:22,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70166996] [2022-11-23 14:14:22,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:14:22,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:14:22,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:14:22,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:14:22,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:14:22,381 INFO L87 Difference]: Start difference. First operand 19587 states and 28074 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) [2022-11-23 14:14:25,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:14:29,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:14:31,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:14:32,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:14:32,439 INFO L93 Difference]: Finished difference Result 56570 states and 81039 transitions. [2022-11-23 14:14:32,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:14:32,439 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 [2022-11-23 14:14:32,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:14:32,667 INFO L225 Difference]: With dead ends: 56570 [2022-11-23 14:14:32,667 INFO L226 Difference]: Without dead ends: 37018 [2022-11-23 14:14:32,772 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:14:32,776 INFO L413 NwaCegarLoop]: 6459 mSDtfsCounter, 4445 mSDsluCounter, 4049 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4445 SdHoareTripleChecker+Valid, 10508 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-23 14:14:32,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4445 Valid, 10508 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1265 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-11-23 14:14:32,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37018 states. [2022-11-23 14:14:35,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37018 to 37000. [2022-11-23 14:14:35,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37000 states, 22060 states have (on average 1.24143245693563) internal successors, (27386), 22469 states have internal predecessors, (27386), 12765 states have call successors, (12765), 2180 states have call predecessors, (12765), 2174 states have return successors, (12769), 12648 states have call predecessors, (12769), 12765 states have call successors, (12769) [2022-11-23 14:14:36,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37000 states to 37000 states and 52920 transitions. [2022-11-23 14:14:36,088 INFO L78 Accepts]: Start accepts. Automaton has 37000 states and 52920 transitions. Word has length 236 [2022-11-23 14:14:36,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:14:36,090 INFO L495 AbstractCegarLoop]: Abstraction has 37000 states and 52920 transitions. [2022-11-23 14:14:36,090 INFO L496 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) [2022-11-23 14:14:36,090 INFO L276 IsEmpty]: Start isEmpty. Operand 37000 states and 52920 transitions. [2022-11-23 14:14:36,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-23 14:14:36,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:14:36,106 INFO L195 NwaCegarLoop]: 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] [2022-11-23 14:14:36,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 14:14:36,107 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:14:36,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:14:36,107 INFO L85 PathProgramCache]: Analyzing trace with hash -559521250, now seen corresponding path program 1 times [2022-11-23 14:14:36,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:14:36,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71757461] [2022-11-23 14:14:36,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:14:36,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:14:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:14:36,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1212 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1206 trivial. 0 not checked. [2022-11-23 14:14:36,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:14:36,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71757461] [2022-11-23 14:14:36,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71757461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:14:36,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:14:36,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:14:36,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463849931] [2022-11-23 14:14:36,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:14:36,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:14:36,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:14:36,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:14:36,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:14:36,673 INFO L87 Difference]: Start difference. First operand 37000 states and 52920 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) [2022-11-23 14:14:40,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:14:43,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:14:45,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:14:45,111 INFO L93 Difference]: Finished difference Result 74526 states and 106435 transitions. [2022-11-23 14:14:45,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:14:45,112 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 [2022-11-23 14:14:45,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:14:45,305 INFO L225 Difference]: With dead ends: 74526 [2022-11-23 14:14:45,306 INFO L226 Difference]: Without dead ends: 37561 [2022-11-23 14:14:45,434 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:14:45,435 INFO L413 NwaCegarLoop]: 4172 mSDtfsCounter, 567 mSDsluCounter, 4040 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 8212 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-23 14:14:45,435 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 8212 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1047 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-11-23 14:14:45,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37561 states. [2022-11-23 14:14:48,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37561 to 37561. [2022-11-23 14:14:48,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37561 states, 22416 states have (on average 1.2398733047822983) internal successors, (27793), 22828 states have internal predecessors, (27793), 12882 states have call successors, (12882), 2268 states have call predecessors, (12882), 2262 states have return successors, (12886), 12765 states have call predecessors, (12886), 12882 states have call successors, (12886) [2022-11-23 14:14:48,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37561 states to 37561 states and 53561 transitions. [2022-11-23 14:14:48,209 INFO L78 Accepts]: Start accepts. Automaton has 37561 states and 53561 transitions. Word has length 253 [2022-11-23 14:14:48,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:14:48,210 INFO L495 AbstractCegarLoop]: Abstraction has 37561 states and 53561 transitions. [2022-11-23 14:14:48,211 INFO L496 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) [2022-11-23 14:14:48,211 INFO L276 IsEmpty]: Start isEmpty. Operand 37561 states and 53561 transitions. [2022-11-23 14:14:48,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-23 14:14:48,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:14:48,220 INFO L195 NwaCegarLoop]: 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] [2022-11-23 14:14:48,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 14:14:48,221 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:14:48,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:14:48,221 INFO L85 PathProgramCache]: Analyzing trace with hash -1920130107, now seen corresponding path program 1 times [2022-11-23 14:14:48,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:14:48,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832600009] [2022-11-23 14:14:48,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:14:48,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:14:48,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:14:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1257 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1254 trivial. 0 not checked. [2022-11-23 14:14:48,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:14:48,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832600009] [2022-11-23 14:14:48,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832600009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:14:48,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:14:48,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:14:48,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258309989] [2022-11-23 14:14:48,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:14:48,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:14:48,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:14:48,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:14:48,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:14:48,889 INFO L87 Difference]: Start difference. First operand 37561 states and 53561 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) [2022-11-23 14:14:55,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:14:57,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:14:59,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:15:00,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:15:00,771 INFO L93 Difference]: Finished difference Result 90829 states and 129598 transitions. [2022-11-23 14:15:00,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:15:00,773 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 [2022-11-23 14:15:00,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:15:01,060 INFO L225 Difference]: With dead ends: 90829 [2022-11-23 14:15:01,060 INFO L226 Difference]: Without dead ends: 53736 [2022-11-23 14:15:01,395 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:15:01,396 INFO L413 NwaCegarLoop]: 6310 mSDtfsCounter, 3999 mSDsluCounter, 4025 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3999 SdHoareTripleChecker+Valid, 10335 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:15:01,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3999 Valid, 10335 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1319 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2022-11-23 14:15:01,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53736 states. [2022-11-23 14:15:04,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53736 to 53726. [2022-11-23 14:15:04,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53726 states, 32104 states have (on average 1.2389421878893596) internal successors, (39775), 32685 states have internal predecessors, (39775), 18362 states have call successors, (18362), 3267 states have call predecessors, (18362), 3259 states have return successors, (18368), 18192 states have call predecessors, (18368), 18362 states have call successors, (18368) [2022-11-23 14:15:04,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53726 states to 53726 states and 76505 transitions. [2022-11-23 14:15:04,765 INFO L78 Accepts]: Start accepts. Automaton has 53726 states and 76505 transitions. Word has length 264 [2022-11-23 14:15:04,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:15:04,766 INFO L495 AbstractCegarLoop]: Abstraction has 53726 states and 76505 transitions. [2022-11-23 14:15:04,766 INFO L496 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) [2022-11-23 14:15:04,767 INFO L276 IsEmpty]: Start isEmpty. Operand 53726 states and 76505 transitions. [2022-11-23 14:15:04,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-11-23 14:15:04,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:15:04,794 INFO L195 NwaCegarLoop]: 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] [2022-11-23 14:15:04,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 14:15:04,795 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:15:04,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:15:04,796 INFO L85 PathProgramCache]: Analyzing trace with hash -2140871168, now seen corresponding path program 1 times [2022-11-23 14:15:04,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:15:04,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907303626] [2022-11-23 14:15:04,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:15:04,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:15:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:15:05,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1381 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1361 trivial. 0 not checked. [2022-11-23 14:15:05,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:15:05,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907303626] [2022-11-23 14:15:05,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907303626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:15:05,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:15:05,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:15:05,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046952371] [2022-11-23 14:15:05,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:15:05,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:15:05,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:15:05,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:15:05,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:15:05,224 INFO L87 Difference]: Start difference. First operand 53726 states and 76505 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) [2022-11-23 14:15:11,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:15:15,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:15:17,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:15:17,764 INFO L93 Difference]: Finished difference Result 131561 states and 187454 transitions. [2022-11-23 14:15:17,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:15:17,767 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 [2022-11-23 14:15:17,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:15:18,297 INFO L225 Difference]: With dead ends: 131561 [2022-11-23 14:15:18,298 INFO L226 Difference]: Without dead ends: 78303 [2022-11-23 14:15:18,441 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:15:18,442 INFO L413 NwaCegarLoop]: 8020 mSDtfsCounter, 4443 mSDsluCounter, 4047 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4443 SdHoareTripleChecker+Valid, 12067 SdHoareTripleChecker+Invalid, 1570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1560 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-23 14:15:18,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4443 Valid, 12067 Invalid, 1570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1560 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2022-11-23 14:15:18,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78303 states. [2022-11-23 14:15:22,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78303 to 78277. [2022-11-23 14:15:22,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78277 states, 46799 states have (on average 1.2387871535716575) internal successors, (57974), 47660 states have internal predecessors, (57974), 26715 states have call successors, (26715), 4774 states have call predecessors, (26715), 4762 states have return successors, (26724), 26455 states have call predecessors, (26724), 26715 states have call successors, (26724) [2022-11-23 14:15:22,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78277 states to 78277 states and 111413 transitions. [2022-11-23 14:15:22,982 INFO L78 Accepts]: Start accepts. Automaton has 78277 states and 111413 transitions. Word has length 297 [2022-11-23 14:15:22,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:15:22,983 INFO L495 AbstractCegarLoop]: Abstraction has 78277 states and 111413 transitions. [2022-11-23 14:15:22,983 INFO L496 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) [2022-11-23 14:15:22,983 INFO L276 IsEmpty]: Start isEmpty. Operand 78277 states and 111413 transitions. [2022-11-23 14:15:23,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-11-23 14:15:23,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:15:23,016 INFO L195 NwaCegarLoop]: 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] [2022-11-23 14:15:23,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 14:15:23,016 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:15:23,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:15:23,017 INFO L85 PathProgramCache]: Analyzing trace with hash 907880599, now seen corresponding path program 1 times [2022-11-23 14:15:23,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:15:23,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192670068] [2022-11-23 14:15:23,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:15:23,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:15:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:15:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1432 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1432 trivial. 0 not checked. [2022-11-23 14:15:23,465 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:15:23,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192670068] [2022-11-23 14:15:23,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192670068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:15:23,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:15:23,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 14:15:23,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655391626] [2022-11-23 14:15:23,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:15:23,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:15:23,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:15:23,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:15:23,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:15:23,468 INFO L87 Difference]: Start difference. First operand 78277 states and 111413 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) [2022-11-23 14:15:27,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:15:29,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:15:33,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:15:35,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:15:35,276 INFO L93 Difference]: Finished difference Result 156114 states and 222661 transitions. [2022-11-23 14:15:35,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:15:35,276 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 [2022-11-23 14:15:35,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:15:35,701 INFO L225 Difference]: With dead ends: 156114 [2022-11-23 14:15:35,701 INFO L226 Difference]: Without dead ends: 78305 [2022-11-23 14:15:36,240 INFO L412 NwaCegarLoop]: 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 [2022-11-23 14:15:36,241 INFO L413 NwaCegarLoop]: 4074 mSDtfsCounter, 0 mSDsluCounter, 4068 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8142 SdHoareTripleChecker+Invalid, 1034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:15:36,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8142 Invalid, 1034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1032 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2022-11-23 14:15:36,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78305 states. [2022-11-23 14:15:40,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78305 to 78305. [2022-11-23 14:15:40,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78305 states, 46827 states have (on average 1.2386443718367608) internal successors, (58002), 47688 states have internal predecessors, (58002), 26715 states have call successors, (26715), 4774 states have call predecessors, (26715), 4762 states have return successors, (26724), 26455 states have call predecessors, (26724), 26715 states have call successors, (26724) [2022-11-23 14:15:40,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78305 states to 78305 states and 111441 transitions. [2022-11-23 14:15:40,380 INFO L78 Accepts]: Start accepts. Automaton has 78305 states and 111441 transitions. Word has length 326 [2022-11-23 14:15:40,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:15:40,385 INFO L495 AbstractCegarLoop]: Abstraction has 78305 states and 111441 transitions. [2022-11-23 14:15:40,386 INFO L496 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) [2022-11-23 14:15:40,386 INFO L276 IsEmpty]: Start isEmpty. Operand 78305 states and 111441 transitions. [2022-11-23 14:15:40,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2022-11-23 14:15:40,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:15:40,412 INFO L195 NwaCegarLoop]: 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] [2022-11-23 14:15:40,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 14:15:40,413 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:15:40,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:15:40,413 INFO L85 PathProgramCache]: Analyzing trace with hash 777158919, now seen corresponding path program 1 times [2022-11-23 14:15:40,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:15:40,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873160530] [2022-11-23 14:15:40,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:15:40,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:15:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:15:47,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2022-11-23 14:15:47,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:15:47,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873160530] [2022-11-23 14:15:47,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873160530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:15:47,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:15:47,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 14:15:47,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296084790] [2022-11-23 14:15:47,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:15:47,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 14:15:47,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:15:47,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 14:15:47,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 14:15:47,868 INFO L87 Difference]: Start difference. First operand 78305 states and 111441 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) [2022-11-23 14:15:58,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:16:01,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 14:16:06,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []