./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-marvell-sky2.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V --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 420f46e1636dc611874a0bbfeb0e9dd74d5fb59c9c42275d858865fbb83330f0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:42:11,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:42:11,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:42:11,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:42:11,545 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:42:11,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:42:11,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:42:11,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:42:11,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:42:11,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:42:11,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:42:11,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:42:11,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:42:11,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:42:11,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:42:11,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:42:11,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:42:11,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:42:11,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:42:11,579 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:42:11,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:42:11,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:42:11,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:42:11,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:42:11,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:42:11,602 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:42:11,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:42:11,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:42:11,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:42:11,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:42:11,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:42:11,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:42:11,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:42:11,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:42:11,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:42:11,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:42:11,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:42:11,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:42:11,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:42:11,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:42:11,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:42:11,625 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:42:11,669 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:42:11,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:42:11,669 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:42:11,669 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:42:11,670 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:42:11,671 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:42:11,671 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:42:11,671 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:42:11,671 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:42:11,672 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:42:11,672 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:42:11,672 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:42:11,672 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:42:11,672 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:42:11,673 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:42:11,673 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:42:11,673 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:42:11,673 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:42:11,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:42:11,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:42:11,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:42:11,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:42:11,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:42:11,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:42:11,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:42:11,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:42:11,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:42:11,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:42:11,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:42:11,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:42:11,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:42:11,682 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:42:11,682 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:42:11,682 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:42:11,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:42:11,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:42:11,684 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:42:11,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:42:11,684 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 420f46e1636dc611874a0bbfeb0e9dd74d5fb59c9c42275d858865fbb83330f0 [2021-11-23 02:42:12,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:42:12,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:42:12,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:42:12,106 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:42:12,107 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:42:12,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-23 02:42:12,216 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/data/3792004aa/7b95fb7a7b244ec89fa6dafd0d5767af/FLAGb29e54884 [2021-11-23 02:42:13,643 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:42:13,644 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-23 02:42:13,724 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/data/3792004aa/7b95fb7a7b244ec89fa6dafd0d5767af/FLAGb29e54884 [2021-11-23 02:42:14,193 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/data/3792004aa/7b95fb7a7b244ec89fa6dafd0d5767af [2021-11-23 02:42:14,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:42:14,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:42:14,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:42:14,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:42:14,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:42:14,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:42:14" (1/1) ... [2021-11-23 02:42:14,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68aaec2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:14, skipping insertion in model container [2021-11-23 02:42:14,208 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:42:14" (1/1) ... [2021-11-23 02:42:14,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:42:14,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:42:23,177 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598078,598091] [2021-11-23 02:42:23,181 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598223,598236] [2021-11-23 02:42:23,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:42:23,375 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:42:24,427 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598078,598091] [2021-11-23 02:42:24,428 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i[598223,598236] [2021-11-23 02:42:24,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:42:24,926 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:42:24,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24 WrapperNode [2021-11-23 02:42:24,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:42:24,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:42:24,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:42:24,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:42:24,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:25,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:25,739 INFO L137 Inliner]: procedures = 821, calls = 5772, calls flagged for inlining = 428, calls inlined = 368, statements flattened = 11456 [2021-11-23 02:42:25,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:42:25,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:42:25,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:42:25,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:42:25,755 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:25,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:25,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:25,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:26,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:26,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:26,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:26,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:42:26,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:42:26,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:42:26,702 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:42:26,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (1/1) ... [2021-11-23 02:42:26,726 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:42:26,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:42:26,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:42:26,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc1f0827-2efb-412b-8e09-448e6c534202/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:42:26,938 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-23 02:42:26,939 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-23 02:42:26,939 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_remove [2021-11-23 02:42:26,939 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_remove [2021-11-23 02:42:26,939 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_led [2021-11-23 02:42:26,939 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_led [2021-11-23 02:42:26,939 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_alloc_rx_skbs [2021-11-23 02:42:26,940 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_alloc_rx_skbs [2021-11-23 02:42:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure rx_set_rss [2021-11-23 02:42:26,940 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_set_rss [2021-11-23 02:42:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_power_aux [2021-11-23 02:42:26,940 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_power_aux [2021-11-23 02:42:26,940 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-23 02:42:26,941 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-23 02:42:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2021-11-23 02:42:26,941 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2021-11-23 02:42:26,941 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-23 02:42:26,941 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-23 02:42:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_add_filter [2021-11-23 02:42:26,942 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_add_filter [2021-11-23 02:42:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-23 02:42:26,942 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-23 02:42:26,942 INFO L130 BoogieDeclarations]: Found specification of procedure PageTail [2021-11-23 02:42:26,942 INFO L138 BoogieDeclarations]: Found implementation of procedure PageTail [2021-11-23 02:42:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size_set [2021-11-23 02:42:26,943 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size_set [2021-11-23 02:42:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-23 02:42:26,943 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-23 02:42:26,943 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 02:42:26,943 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 02:42:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_init_netdev [2021-11-23 02:42:26,944 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_init_netdev [2021-11-23 02:42:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-11-23 02:42:26,944 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-11-23 02:42:26,944 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-23 02:42:26,944 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-23 02:42:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure netif_schedule_queue [2021-11-23 02:42:26,945 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_schedule_queue [2021-11-23 02:42:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_regs_len [2021-11-23 02:42:26,945 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_regs_len [2021-11-23 02:42:26,945 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-23 02:42:26,945 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-23 02:42:26,946 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_update [2021-11-23 02:42:26,946 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_update [2021-11-23 02:42:26,946 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-23 02:42:26,946 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-23 02:42:26,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-23 02:42:26,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-23 02:42:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_ramset [2021-11-23 02:42:26,947 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_ramset [2021-11-23 02:42:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:42:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_update_features [2021-11-23 02:42:26,947 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_update_features [2021-11-23 02:42:26,947 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_netpoll [2021-11-23 02:42:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_netpoll [2021-11-23 02:42:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-23 02:42:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-23 02:42:26,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-23 02:42:26,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-23 02:42:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2021-11-23 02:42:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2021-11-23 02:42:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2021-11-23 02:42:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2021-11-23 02:42:26,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-11-23 02:42:26,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-11-23 02:42:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-23 02:42:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-23 02:42:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_lock [2021-11-23 02:42:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_lock [2021-11-23 02:42:26,950 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-23 02:42:26,950 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-23 02:42:26,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:42:26,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-23 02:42:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-23 02:42:26,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-23 02:42:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-23 02:42:26,951 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_add [2021-11-23 02:42:26,951 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_add [2021-11-23 02:42:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-23 02:42:26,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-23 02:42:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-23 02:42:26,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-23 02:42:26,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-23 02:42:26,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-23 02:42:26,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2021-11-23 02:42:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2021-11-23 02:42:26,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_5 [2021-11-23 02:42:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_5 [2021-11-23 02:42:26,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-11-23 02:42:26,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-11-23 02:42:26,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:42:26,954 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_map_skb [2021-11-23 02:42:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_map_skb [2021-11-23 02:42:26,954 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_resume [2021-11-23 02:42:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_resume [2021-11-23 02:42:26,954 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_ring_size [2021-11-23 02:42:26,954 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_ring_size [2021-11-23 02:42:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-23 02:42:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-23 02:42:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:42:26,955 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:42:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:42:26,955 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:42:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read32 [2021-11-23 02:42:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read32 [2021-11-23 02:42:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-11-23 02:42:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-11-23 02:42:26,956 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2021-11-23 02:42:26,956 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2021-11-23 02:42:26,957 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_clean [2021-11-23 02:42:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_clean [2021-11-23 02:42:26,957 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-23 02:42:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-23 02:42:26,957 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-23 02:42:26,957 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-23 02:42:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_down [2021-11-23 02:42:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_down [2021-11-23 02:42:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-23 02:42:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-23 02:42:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_reinit [2021-11-23 02:42:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_reinit [2021-11-23 02:42:26,958 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-23 02:42:26,959 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-23 02:42:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_read16 [2021-11-23 02:42:26,959 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_read16 [2021-11-23 02:42:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:42:26,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:42:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write16 [2021-11-23 02:42:26,960 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write16 [2021-11-23 02:42:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-23 02:42:26,960 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-23 02:42:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_free_buffers [2021-11-23 02:42:26,960 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_free_buffers [2021-11-23 02:42:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 02:42:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 02:42:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:42:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 02:42:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-23 02:42:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-11-23 02:42:26,961 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-11-23 02:42:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2021-11-23 02:42:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2021-11-23 02:42:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-23 02:42:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-23 02:42:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read32 [2021-11-23 02:42:26,962 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read32 [2021-11-23 02:42:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-23 02:42:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_multicast [2021-11-23 02:42:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_multicast [2021-11-23 02:42:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-23 02:42:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-23 02:42:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_prefetch_init [2021-11-23 02:42:26,963 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_prefetch_init [2021-11-23 02:42:26,963 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_reset [2021-11-23 02:42:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_reset [2021-11-23 02:42:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-11-23 02:42:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-11-23 02:42:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-23 02:42:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-23 02:42:26,964 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-23 02:42:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-23 02:42:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-11-23 02:42:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_phy_lock_of_sky2_port [2021-11-23 02:42:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:42:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:42:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-23 02:42:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-23 02:42:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-11-23 02:42:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-11-23 02:42:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vpd_wait [2021-11-23 02:42:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vpd_wait [2021-11-23 02:42:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-23 02:42:26,966 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-23 02:42:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_shutdown [2021-11-23 02:42:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_shutdown [2021-11-23 02:42:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read16 [2021-11-23 02:42:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read16 [2021-11-23 02:42:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure get_tx_le [2021-11-23 02:42:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure get_tx_le [2021-11-23 02:42:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_stop [2021-11-23 02:42:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_stop [2021-11-23 02:42:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:42:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 02:42:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 02:42:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:42:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_down [2021-11-23 02:42:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_down [2021-11-23 02:42:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-23 02:42:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-23 02:42:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure __gm_phy_read [2021-11-23 02:42:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __gm_phy_read [2021-11-23 02:42:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-23 02:42:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-23 02:42:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure pci_find_capability [2021-11-23 02:42:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_find_capability [2021-11-23 02:42:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 02:42:26,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 02:42:26,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_103 [2021-11-23 02:42:26,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_103 [2021-11-23 02:42:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure gma_write16 [2021-11-23 02:42:26,992 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_write16 [2021-11-23 02:42:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-23 02:42:26,992 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-23 02:42:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_next_rx [2021-11-23 02:42:26,992 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_next_rx [2021-11-23 02:42:26,992 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2021-11-23 02:42:26,992 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2021-11-23 02:42:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2021-11-23 02:42:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2021-11-23 02:42:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_get_eeprom_len [2021-11-23 02:42:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_get_eeprom_len [2021-11-23 02:42:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-23 02:42:26,993 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-23 02:42:26,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:42:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_us2clk [2021-11-23 02:42:26,994 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_us2clk [2021-11-23 02:42:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:42:26,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:42:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_retry_bh [2021-11-23 02:42:26,994 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_retry_bh [2021-11-23 02:42:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-11-23 02:42:26,994 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-11-23 02:42:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2021-11-23 02:42:26,995 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2021-11-23 02:42:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-23 02:42:26,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-23 02:42:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2021-11-23 02:42:26,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2021-11-23 02:42:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2021-11-23 02:42:26,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2021-11-23 02:42:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_qset [2021-11-23 02:42:26,996 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_qset [2021-11-23 02:42:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_mhz [2021-11-23 02:42:26,996 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_mhz [2021-11-23 02:42:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-23 02:42:26,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-23 02:42:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-23 02:42:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-23 02:42:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-11-23 02:42:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-11-23 02:42:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats32 [2021-11-23 02:42:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats32 [2021-11-23 02:42:26,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:42:26,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:42:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-23 02:42:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-23 02:42:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_supported_modes [2021-11-23 02:42:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_supported_modes [2021-11-23 02:42:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_read [2021-11-23 02:42:26,998 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_read [2021-11-23 02:42:26,998 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_alloc [2021-11-23 02:42:26,999 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_alloc [2021-11-23 02:42:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2021-11-23 02:42:26,999 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2021-11-23 02:42:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_tx_unlock [2021-11-23 02:42:26,999 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_tx_unlock [2021-11-23 02:42:26,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-23 02:42:26,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-23 02:42:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_show_addr [2021-11-23 02:42:27,000 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_show_addr [2021-11-23 02:42:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-23 02:42:27,000 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-23 02:42:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_close [2021-11-23 02:42:27,000 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_close [2021-11-23 02:42:27,000 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-23 02:42:27,001 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-23 02:42:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-23 02:42:27,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-23 02:42:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_start [2021-11-23 02:42:27,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_start [2021-11-23 02:42:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:42:27,001 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2021-11-23 02:42:27,002 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2021-11-23 02:42:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats64 [2021-11-23 02:42:27,002 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats64 [2021-11-23 02:42:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2021-11-23 02:42:27,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2021-11-23 02:42:27,002 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-11-23 02:42:27,002 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-11-23 02:42:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-23 02:42:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-23 02:42:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure pci_is_pcie [2021-11-23 02:42:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_is_pcie [2021-11-23 02:42:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:42:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-11-23 02:42:27,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-11-23 02:42:27,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:42:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-23 02:42:27,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-23 02:42:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-23 02:42:27,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-23 02:42:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:42:27,004 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:42:27,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-23 02:42:27,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-23 02:42:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-23 02:42:27,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-23 02:42:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_hw_up [2021-11-23 02:42:27,005 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_hw_up [2021-11-23 02:42:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-23 02:42:27,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-23 02:42:27,005 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_unmap [2021-11-23 02:42:27,006 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_unmap [2021-11-23 02:42:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_put_idx [2021-11-23 02:42:27,006 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_put_idx [2021-11-23 02:42:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:42:27,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-23 02:42:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_dma_map [2021-11-23 02:42:27,006 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_dma_map [2021-11-23 02:42:27,006 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:42:27,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:42:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:42:27,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-23 02:42:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-23 02:42:27,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-23 02:42:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_power_up [2021-11-23 02:42:27,007 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_power_up [2021-11-23 02:42:27,007 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_phy_init [2021-11-23 02:42:27,007 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_phy_init [2021-11-23 02:42:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-23 02:42:27,008 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-23 02:42:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_complete [2021-11-23 02:42:27,008 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_complete [2021-11-23 02:42:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_fetch_begin_bh [2021-11-23 02:42:27,008 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_fetch_begin_bh [2021-11-23 02:42:27,008 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-23 02:42:27,008 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-23 02:42:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read16 [2021-11-23 02:42:27,009 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read16 [2021-11-23 02:42:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:42:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:42:27,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:42:27,009 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_all_up [2021-11-23 02:42:27,009 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_all_up [2021-11-23 02:42:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_tx_timeout [2021-11-23 02:42:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_tx_timeout [2021-11-23 02:42:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-23 02:42:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-23 02:42:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_wol_supported [2021-11-23 02:42:27,010 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_wol_supported [2021-11-23 02:42:27,010 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_pci_write32 [2021-11-23 02:42:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_pci_write32 [2021-11-23 02:42:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-23 02:42:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-23 02:42:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_submit [2021-11-23 02:42:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_submit [2021-11-23 02:42:27,011 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-11-23 02:42:27,011 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-11-23 02:42:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-23 02:42:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-23 02:42:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_vlan_mode [2021-11-23 02:42:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_vlan_mode [2021-11-23 02:42:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_read8 [2021-11-23 02:42:27,012 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_read8 [2021-11-23 02:42:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-11-23 02:42:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-11-23 02:42:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read32 [2021-11-23 02:42:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read32 [2021-11-23 02:42:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-11-23 02:42:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_phy_lock_of_sky2_port [2021-11-23 02:42:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure gma_set_addr [2021-11-23 02:42:27,013 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_set_addr [2021-11-23 02:42:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-23 02:42:27,014 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-23 02:42:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-23 02:42:27,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-23 02:42:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-23 02:42:27,014 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-23 02:42:27,014 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-23 02:42:27,015 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-23 02:42:27,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:42:27,015 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_nway_reset [2021-11-23 02:42:27,015 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_nway_reset [2021-11-23 02:42:27,015 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 02:42:27,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-23 02:42:27,015 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-11-23 02:42:27,016 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-11-23 02:42:27,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-23 02:42:27,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-23 02:42:27,016 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-23 02:42:27,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-23 02:42:27,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-23 02:42:27,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-23 02:42:27,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-23 02:42:27,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-23 02:42:27,017 INFO L130 BoogieDeclarations]: Found specification of procedure tx_avail [2021-11-23 02:42:27,017 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_avail [2021-11-23 02:42:27,017 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_rx_unmap_skb [2021-11-23 02:42:27,017 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_rx_unmap_skb [2021-11-23 02:42:27,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-23 02:42:27,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-23 02:42:27,018 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_clk2us [2021-11-23 02:42:27,018 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_clk2us [2021-11-23 02:42:27,018 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_set_tx_stfwd [2021-11-23 02:42:27,018 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_set_tx_stfwd [2021-11-23 02:42:27,018 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_enable_rx_tx [2021-11-23 02:42:27,018 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_enable_rx_tx [2021-11-23 02:42:27,018 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-23 02:42:27,018 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-23 02:42:27,019 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-23 02:42:27,019 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-23 02:42:27,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2021-11-23 02:42:27,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_sky2_cleanup_module_22_2 [2021-11-23 02:42:27,019 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2021-11-23 02:42:27,019 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2021-11-23 02:42:27,019 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_setup_irq [2021-11-23 02:42:27,019 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_setup_irq [2021-11-23 02:42:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:42:27,020 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:42:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-11-23 02:42:27,020 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-11-23 02:42:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 02:42:27,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2021-11-23 02:42:27,020 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_is_copper [2021-11-23 02:42:27,020 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_is_copper [2021-11-23 02:42:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-23 02:42:27,021 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-23 02:42:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_suspend [2021-11-23 02:42:27,021 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_suspend [2021-11-23 02:42:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_104 [2021-11-23 02:42:27,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_104 [2021-11-23 02:42:27,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2021-11-23 02:42:27,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2021-11-23 02:42:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-23 02:42:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-23 02:42:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write16 [2021-11-23 02:42:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write16 [2021-11-23 02:42:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 02:42:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 02:42:27,022 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-23 02:42:27,022 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-23 02:42:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write8 [2021-11-23 02:42:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write8 [2021-11-23 02:42:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure gm_phy_write [2021-11-23 02:42:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure gm_phy_write [2021-11-23 02:42:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-23 02:42:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-23 02:42:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-23 02:42:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-23 02:42:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_write32 [2021-11-23 02:42:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_write32 [2021-11-23 02:42:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:42:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure gma_read64 [2021-11-23 02:42:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure gma_read64 [2021-11-23 02:42:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-23 02:42:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-23 02:42:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-11-23 02:42:27,025 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-11-23 02:42:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure sky2_open [2021-11-23 02:42:27,025 INFO L138 BoogieDeclarations]: Found implementation of procedure sky2_open [2021-11-23 02:42:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-23 02:42:28,603 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:42:28,610 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:42:28,731 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:42:44,146 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-23 02:42:44,295 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:42:47,409 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:42:47,409 INFO L301 CfgBuilder]: Removed 11 assume(true) statements. [2021-11-23 02:42:47,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:47 BoogieIcfgContainer [2021-11-23 02:42:47,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:42:47,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:42:47,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:42:47,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:42:47,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:42:14" (1/3) ... [2021-11-23 02:42:47,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6486b7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:42:47, skipping insertion in model container [2021-11-23 02:42:47,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:24" (2/3) ... [2021-11-23 02:42:47,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6486b7f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:42:47, skipping insertion in model container [2021-11-23 02:42:47,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:47" (3/3) ... [2021-11-23 02:42:47,427 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-marvell-sky2.cil.i [2021-11-23 02:42:47,433 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:42:47,433 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:42:47,502 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:42:47,512 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:42:47,513 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:42:47,610 INFO L276 IsEmpty]: Start isEmpty. Operand has 3400 states, 1936 states have (on average 1.3099173553719008) internal successors, (2536), 2015 states have internal predecessors, (2536), 1249 states have call successors, (1249), 216 states have call predecessors, (1249), 215 states have return successors, (1239), 1214 states have call predecessors, (1239), 1239 states have call successors, (1239) [2021-11-23 02:42:47,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-11-23 02:42:47,652 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:42:47,653 INFO L514 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:42:47,654 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:42:47,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:42:47,659 INFO L85 PathProgramCache]: Analyzing trace with hash -637935520, now seen corresponding path program 1 times [2021-11-23 02:42:47,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:42:47,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026146904] [2021-11-23 02:42:47,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:42:47,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:42:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:42:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2021-11-23 02:42:49,071 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:42:49,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026146904] [2021-11-23 02:42:49,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026146904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:42:49,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:42:49,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:42:49,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383740362] [2021-11-23 02:42:49,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:42:49,087 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:42:49,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:42:49,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:42:49,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:42:49,138 INFO L87 Difference]: Start difference. First operand has 3400 states, 1936 states have (on average 1.3099173553719008) internal successors, (2536), 2015 states have internal predecessors, (2536), 1249 states have call successors, (1249), 216 states have call predecessors, (1249), 215 states have return successors, (1239), 1214 states have call predecessors, (1239), 1239 states have call successors, (1239) 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, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-23 02:42:55,538 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:42:58,288 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:00,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:00,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:00,603 INFO L93 Difference]: Finished difference Result 9750 states and 14469 transitions. [2021-11-23 02:43:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:00,606 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, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 378 [2021-11-23 02:43:00,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:00,692 INFO L225 Difference]: With dead ends: 9750 [2021-11-23 02:43:00,697 INFO L226 Difference]: Without dead ends: 6342 [2021-11-23 02:43:00,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:00,736 INFO L933 BasicCegarLoop]: 5496 mSDtfsCounter, 4461 mSDsluCounter, 4942 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4461 SdHoareTripleChecker+Valid, 9849 SdHoareTripleChecker+Invalid, 1276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:00,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4461 Valid, 9849 Invalid, 1276 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 1256 Invalid, 3 Unknown, 0 Unchecked, 10.8s Time] [2021-11-23 02:43:00,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6342 states. [2021-11-23 02:43:01,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6342 to 6339. [2021-11-23 02:43:01,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6339 states, 3637 states have (on average 1.3046466868298048) internal successors, (4745), 3785 states have internal predecessors, (4745), 2285 states have call successors, (2285), 416 states have call predecessors, (2285), 416 states have return successors, (2285), 2235 states have call predecessors, (2285), 2285 states have call successors, (2285) [2021-11-23 02:43:01,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6339 states to 6339 states and 9315 transitions. [2021-11-23 02:43:01,545 INFO L78 Accepts]: Start accepts. Automaton has 6339 states and 9315 transitions. Word has length 378 [2021-11-23 02:43:01,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:01,553 INFO L470 AbstractCegarLoop]: Abstraction has 6339 states and 9315 transitions. [2021-11-23 02:43:01,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-23 02:43:01,556 INFO L276 IsEmpty]: Start isEmpty. Operand 6339 states and 9315 transitions. [2021-11-23 02:43:01,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2021-11-23 02:43:01,581 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:01,581 INFO L514 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:01,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:43:01,582 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:01,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:01,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1469055558, now seen corresponding path program 1 times [2021-11-23 02:43:01,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:01,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35888906] [2021-11-23 02:43:01,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:01,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:02,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4032 trivial. 0 not checked. [2021-11-23 02:43:02,256 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:02,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35888906] [2021-11-23 02:43:02,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35888906] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:02,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:02,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:43:02,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351665515] [2021-11-23 02:43:02,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:02,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:43:02,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:02,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:43:02,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:02,262 INFO L87 Difference]: Start difference. First operand 6339 states and 9315 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-23 02:43:08,136 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:10,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:10,140 INFO L93 Difference]: Finished difference Result 18496 states and 27179 transitions. [2021-11-23 02:43:10,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:10,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 379 [2021-11-23 02:43:10,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:10,282 INFO L225 Difference]: With dead ends: 18496 [2021-11-23 02:43:10,282 INFO L226 Difference]: Without dead ends: 12222 [2021-11-23 02:43:10,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:10,330 INFO L933 BasicCegarLoop]: 6320 mSDtfsCounter, 4545 mSDsluCounter, 4837 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4547 SdHoareTripleChecker+Valid, 10587 SdHoareTripleChecker+Invalid, 1429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:10,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4547 Valid, 10587 Invalid, 1429 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 1399 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2021-11-23 02:43:10,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12222 states. [2021-11-23 02:43:11,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12222 to 12216. [2021-11-23 02:43:11,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12216 states, 6997 states have (on average 1.2994140345862513) internal successors, (9092), 7283 states have internal predecessors, (9092), 4404 states have call successors, (4404), 816 states have call predecessors, (4404), 814 states have return successors, (4404), 4308 states have call predecessors, (4404), 4404 states have call successors, (4404) [2021-11-23 02:43:11,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12216 states to 12216 states and 17900 transitions. [2021-11-23 02:43:11,363 INFO L78 Accepts]: Start accepts. Automaton has 12216 states and 17900 transitions. Word has length 379 [2021-11-23 02:43:11,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:11,369 INFO L470 AbstractCegarLoop]: Abstraction has 12216 states and 17900 transitions. [2021-11-23 02:43:11,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-11-23 02:43:11,370 INFO L276 IsEmpty]: Start isEmpty. Operand 12216 states and 17900 transitions. [2021-11-23 02:43:11,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2021-11-23 02:43:11,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:11,394 INFO L514 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:11,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:43:11,394 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:11,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:11,395 INFO L85 PathProgramCache]: Analyzing trace with hash 280475068, now seen corresponding path program 1 times [2021-11-23 02:43:11,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:11,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96291052] [2021-11-23 02:43:11,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:11,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:11,973 INFO L134 CoverageAnalysis]: Checked inductivity of 4035 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4035 trivial. 0 not checked. [2021-11-23 02:43:11,973 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:11,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96291052] [2021-11-23 02:43:11,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96291052] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:11,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:11,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:43:11,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145478645] [2021-11-23 02:43:11,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:11,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:43:11,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:11,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:43:11,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:11,976 INFO L87 Difference]: Start difference. First operand 12216 states and 17900 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-23 02:43:18,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:20,478 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:21,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:21,272 INFO L93 Difference]: Finished difference Result 35966 states and 52660 transitions. [2021-11-23 02:43:21,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:21,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 403 [2021-11-23 02:43:21,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:21,508 INFO L225 Difference]: With dead ends: 35966 [2021-11-23 02:43:21,509 INFO L226 Difference]: Without dead ends: 23815 [2021-11-23 02:43:21,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:21,624 INFO L933 BasicCegarLoop]: 6534 mSDtfsCounter, 4692 mSDsluCounter, 4887 mSDsCounter, 0 mSdLazyCounter, 1400 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4694 SdHoareTripleChecker+Valid, 10832 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1400 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:21,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4694 Valid, 10832 Invalid, 1414 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1400 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2021-11-23 02:43:21,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23815 states. [2021-11-23 02:43:23,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23815 to 23805. [2021-11-23 02:43:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23805 states, 13679 states have (on average 1.2984867314862198) internal successors, (17762), 14238 states have internal predecessors, (17762), 8523 states have call successors, (8523), 1608 states have call predecessors, (8523), 1602 states have return successors, (8523), 8331 states have call predecessors, (8523), 8523 states have call successors, (8523) [2021-11-23 02:43:23,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23805 states to 23805 states and 34808 transitions. [2021-11-23 02:43:23,662 INFO L78 Accepts]: Start accepts. Automaton has 23805 states and 34808 transitions. Word has length 403 [2021-11-23 02:43:23,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:23,663 INFO L470 AbstractCegarLoop]: Abstraction has 23805 states and 34808 transitions. [2021-11-23 02:43:23,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2021-11-23 02:43:23,663 INFO L276 IsEmpty]: Start isEmpty. Operand 23805 states and 34808 transitions. [2021-11-23 02:43:23,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-11-23 02:43:23,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:23,710 INFO L514 BasicCegarLoop]: trace histogram [34, 32, 32, 32, 32, 32, 32, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:23,710 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:43:23,710 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:23,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:23,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1457570332, now seen corresponding path program 1 times [2021-11-23 02:43:23,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:23,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731965979] [2021-11-23 02:43:23,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:23,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:24,283 INFO L134 CoverageAnalysis]: Checked inductivity of 4110 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4107 trivial. 0 not checked. [2021-11-23 02:43:24,284 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:24,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731965979] [2021-11-23 02:43:24,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731965979] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:24,284 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:24,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:43:24,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167363307] [2021-11-23 02:43:24,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:24,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:43:24,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:24,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:43:24,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:24,288 INFO L87 Difference]: Start difference. First operand 23805 states and 34808 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 02:43:30,595 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:32,883 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:33,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:33,038 INFO L93 Difference]: Finished difference Result 50092 states and 73089 transitions. [2021-11-23 02:43:33,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:33,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 420 [2021-11-23 02:43:33,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:33,210 INFO L225 Difference]: With dead ends: 50092 [2021-11-23 02:43:33,210 INFO L226 Difference]: Without dead ends: 26352 [2021-11-23 02:43:33,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:33,321 INFO L933 BasicCegarLoop]: 5631 mSDtfsCounter, 3408 mSDsluCounter, 4852 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3409 SdHoareTripleChecker+Valid, 9898 SdHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:33,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3409 Valid, 9898 Invalid, 1294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1286 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2021-11-23 02:43:33,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26352 states. [2021-11-23 02:43:34,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26352 to 26349. [2021-11-23 02:43:34,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26349 states, 15175 states have (on average 1.2957495881383856) internal successors, (19663), 15781 states have internal predecessors, (19663), 9353 states have call successors, (9353), 1826 states have call predecessors, (9353), 1820 states have return successors, (9354), 9145 states have call predecessors, (9354), 9353 states have call successors, (9354) [2021-11-23 02:43:35,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26349 states to 26349 states and 38370 transitions. [2021-11-23 02:43:35,319 INFO L78 Accepts]: Start accepts. Automaton has 26349 states and 38370 transitions. Word has length 420 [2021-11-23 02:43:35,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:35,321 INFO L470 AbstractCegarLoop]: Abstraction has 26349 states and 38370 transitions. [2021-11-23 02:43:35,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 02:43:35,322 INFO L276 IsEmpty]: Start isEmpty. Operand 26349 states and 38370 transitions. [2021-11-23 02:43:35,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-11-23 02:43:35,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:35,363 INFO L514 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:35,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:43:35,364 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:35,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:35,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1598464471, now seen corresponding path program 1 times [2021-11-23 02:43:35,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:35,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875315232] [2021-11-23 02:43:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:35,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:35,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:36,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4040 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4040 trivial. 0 not checked. [2021-11-23 02:43:36,105 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:36,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875315232] [2021-11-23 02:43:36,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875315232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:36,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:36,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:43:36,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071911330] [2021-11-23 02:43:36,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:36,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:43:36,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:36,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:43:36,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:36,109 INFO L87 Difference]: Start difference. First operand 26349 states and 38370 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 02:43:39,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:43,728 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:44,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:44,382 INFO L93 Difference]: Finished difference Result 67342 states and 97596 transitions. [2021-11-23 02:43:44,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:44,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 434 [2021-11-23 02:43:44,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:44,666 INFO L225 Difference]: With dead ends: 67342 [2021-11-23 02:43:44,666 INFO L226 Difference]: Without dead ends: 41058 [2021-11-23 02:43:44,769 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:44,771 INFO L933 BasicCegarLoop]: 5292 mSDtfsCounter, 3630 mSDsluCounter, 4803 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3631 SdHoareTripleChecker+Valid, 9554 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:44,771 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3631 Valid, 9554 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1266 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-23 02:43:44,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41058 states. [2021-11-23 02:43:47,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41058 to 41046. [2021-11-23 02:43:47,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41046 states, 23310 states have (on average 1.2787215787215787) internal successors, (29807), 24265 states have internal predecessors, (29807), 14720 states have call successors, (14720), 3034 states have call predecessors, (14720), 3015 states have return successors, (14740), 14377 states have call predecessors, (14740), 14720 states have call successors, (14740) [2021-11-23 02:43:47,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41046 states to 41046 states and 59267 transitions. [2021-11-23 02:43:47,402 INFO L78 Accepts]: Start accepts. Automaton has 41046 states and 59267 transitions. Word has length 434 [2021-11-23 02:43:47,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:43:47,404 INFO L470 AbstractCegarLoop]: Abstraction has 41046 states and 59267 transitions. [2021-11-23 02:43:47,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2021-11-23 02:43:47,404 INFO L276 IsEmpty]: Start isEmpty. Operand 41046 states and 59267 transitions. [2021-11-23 02:43:47,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2021-11-23 02:43:47,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:43:47,432 INFO L514 BasicCegarLoop]: trace histogram [37, 33, 33, 33, 33, 33, 33, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:43:47,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:43:47,433 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:43:47,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:43:47,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1966946504, now seen corresponding path program 1 times [2021-11-23 02:43:47,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:43:47,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242555812] [2021-11-23 02:43:47,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:43:47,434 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:43:47,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:43:48,173 INFO L134 CoverageAnalysis]: Checked inductivity of 4521 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2021-11-23 02:43:48,174 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:43:48,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242555812] [2021-11-23 02:43:48,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242555812] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:43:48,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:43:48,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:43:48,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827032718] [2021-11-23 02:43:48,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:43:48,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:43:48,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:43:48,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:43:48,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:48,177 INFO L87 Difference]: Start difference. First operand 41046 states and 59267 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-23 02:43:55,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:43:56,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:43:56,148 INFO L93 Difference]: Finished difference Result 99772 states and 144103 transitions. [2021-11-23 02:43:56,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:43:56,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 439 [2021-11-23 02:43:56,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:43:56,634 INFO L225 Difference]: With dead ends: 99772 [2021-11-23 02:43:56,634 INFO L226 Difference]: Without dead ends: 59131 [2021-11-23 02:43:56,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:43:56,784 INFO L933 BasicCegarLoop]: 6505 mSDtfsCounter, 4344 mSDsluCounter, 4869 mSDsCounter, 0 mSdLazyCounter, 1501 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4346 SdHoareTripleChecker+Valid, 10786 SdHoareTripleChecker+Invalid, 1517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1501 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:43:56,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4346 Valid, 10786 Invalid, 1517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1501 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2021-11-23 02:43:56,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59131 states. [2021-11-23 02:43:59,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59131 to 59121. [2021-11-23 02:43:59,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59121 states, 33615 states have (on average 1.2779116465863454) internal successors, (42957), 34977 states have internal predecessors, (42957), 21140 states have call successors, (21140), 4393 states have call predecessors, (21140), 4365 states have return successors, (21164), 20642 states have call predecessors, (21164), 21140 states have call successors, (21164) [2021-11-23 02:44:00,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59121 states to 59121 states and 85261 transitions. [2021-11-23 02:44:00,131 INFO L78 Accepts]: Start accepts. Automaton has 59121 states and 85261 transitions. Word has length 439 [2021-11-23 02:44:00,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:00,136 INFO L470 AbstractCegarLoop]: Abstraction has 59121 states and 85261 transitions. [2021-11-23 02:44:00,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2021-11-23 02:44:00,137 INFO L276 IsEmpty]: Start isEmpty. Operand 59121 states and 85261 transitions. [2021-11-23 02:44:00,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2021-11-23 02:44:00,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:00,178 INFO L514 BasicCegarLoop]: trace histogram [38, 33, 33, 33, 33, 33, 33, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:00,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:44:00,178 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:44:00,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:00,179 INFO L85 PathProgramCache]: Analyzing trace with hash -198035033, now seen corresponding path program 1 times [2021-11-23 02:44:00,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:44:00,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705245257] [2021-11-23 02:44:00,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:00,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:00,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:00,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4635 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4628 trivial. 0 not checked. [2021-11-23 02:44:00,766 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:44:00,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705245257] [2021-11-23 02:44:00,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705245257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:00,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:00,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:00,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974693630] [2021-11-23 02:44:00,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:00,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:44:00,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:00,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:44:00,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:00,769 INFO L87 Difference]: Start difference. First operand 59121 states and 85261 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-23 02:44:07,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:11,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:12,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:12,718 INFO L93 Difference]: Finished difference Result 144779 states and 208837 transitions. [2021-11-23 02:44:12,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:44:12,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 476 [2021-11-23 02:44:12,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:13,326 INFO L225 Difference]: With dead ends: 144779 [2021-11-23 02:44:13,326 INFO L226 Difference]: Without dead ends: 86063 [2021-11-23 02:44:13,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:13,619 INFO L933 BasicCegarLoop]: 8408 mSDtfsCounter, 4651 mSDsluCounter, 4885 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4655 SdHoareTripleChecker+Valid, 12704 SdHoareTripleChecker+Invalid, 1827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:13,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4655 Valid, 12704 Invalid, 1827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1816 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2021-11-23 02:44:13,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86063 states. [2021-11-23 02:44:16,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86063 to 86027. [2021-11-23 02:44:17,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86027 states, 49057 states have (on average 1.2785331349246793) internal successors, (62721), 51049 states have internal predecessors, (62721), 30606 states have call successors, (30606), 6405 states have call predecessors, (30606), 6363 states have return successors, (30660), 29870 states have call predecessors, (30660), 30606 states have call successors, (30660) [2021-11-23 02:44:17,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86027 states to 86027 states and 123987 transitions. [2021-11-23 02:44:17,605 INFO L78 Accepts]: Start accepts. Automaton has 86027 states and 123987 transitions. Word has length 476 [2021-11-23 02:44:17,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:17,606 INFO L470 AbstractCegarLoop]: Abstraction has 86027 states and 123987 transitions. [2021-11-23 02:44:17,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2021-11-23 02:44:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 86027 states and 123987 transitions. [2021-11-23 02:44:17,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2021-11-23 02:44:17,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:17,652 INFO L514 BasicCegarLoop]: trace histogram [39, 33, 33, 33, 33, 33, 33, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:17,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:44:17,652 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:44:17,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:17,654 INFO L85 PathProgramCache]: Analyzing trace with hash 1595003230, now seen corresponding path program 1 times [2021-11-23 02:44:17,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:44:17,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583636683] [2021-11-23 02:44:17,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:17,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:19,001 INFO L134 CoverageAnalysis]: Checked inductivity of 4762 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4746 trivial. 0 not checked. [2021-11-23 02:44:19,001 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:44:19,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583636683] [2021-11-23 02:44:19,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583636683] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:19,002 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:19,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:44:19,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640323212] [2021-11-23 02:44:19,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:19,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:44:19,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:19,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:44:19,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:19,004 INFO L87 Difference]: Start difference. First operand 86027 states and 123987 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-23 02:44:29,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:44:30,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:44:30,316 INFO L93 Difference]: Finished difference Result 200628 states and 289198 transitions. [2021-11-23 02:44:30,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:44:30,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 503 [2021-11-23 02:44:30,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:44:30,963 INFO L225 Difference]: With dead ends: 200628 [2021-11-23 02:44:30,963 INFO L226 Difference]: Without dead ends: 115006 [2021-11-23 02:44:31,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:44:31,228 INFO L933 BasicCegarLoop]: 8127 mSDtfsCounter, 4684 mSDsluCounter, 4537 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4686 SdHoareTripleChecker+Valid, 12126 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:44:31,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4686 Valid, 12126 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1722 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2021-11-23 02:44:31,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115006 states. [2021-11-23 02:44:36,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115006 to 114992. [2021-11-23 02:44:36,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114992 states, 65448 states have (on average 1.276952695269527) internal successors, (83574), 68101 states have internal predecessors, (83574), 40978 states have call successors, (40978), 8625 states have call predecessors, (40978), 8565 states have return successors, (41044), 39983 states have call predecessors, (41044), 40978 states have call successors, (41044) [2021-11-23 02:44:37,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114992 states to 114992 states and 165596 transitions. [2021-11-23 02:44:37,608 INFO L78 Accepts]: Start accepts. Automaton has 114992 states and 165596 transitions. Word has length 503 [2021-11-23 02:44:37,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:44:37,609 INFO L470 AbstractCegarLoop]: Abstraction has 114992 states and 165596 transitions. [2021-11-23 02:44:37,610 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2021-11-23 02:44:37,610 INFO L276 IsEmpty]: Start isEmpty. Operand 114992 states and 165596 transitions. [2021-11-23 02:44:37,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-11-23 02:44:37,651 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:44:37,651 INFO L514 BasicCegarLoop]: trace histogram [40, 33, 33, 33, 33, 33, 33, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:44:37,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:44:37,652 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:44:37,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:44:37,653 INFO L85 PathProgramCache]: Analyzing trace with hash 909021225, now seen corresponding path program 1 times [2021-11-23 02:44:37,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:44:37,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041914015] [2021-11-23 02:44:37,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:44:37,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:44:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:44:38,264 INFO L134 CoverageAnalysis]: Checked inductivity of 4814 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 4789 trivial. 0 not checked. [2021-11-23 02:44:38,264 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:44:38,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041914015] [2021-11-23 02:44:38,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041914015] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:44:38,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:44:38,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:44:38,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787503084] [2021-11-23 02:44:38,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:44:38,769 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:44:38,769 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:44:38,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:44:38,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:44:38,770 INFO L87 Difference]: Start difference. First operand 114992 states and 165596 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-23 02:44:55,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []