./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1f86bd80e1dfdf8246d3fbc9ed5a7a7eb69a7621f24c545347c1a1ff0b611568 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:33:30,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:33:30,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:33:30,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:33:30,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:33:30,497 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:33:30,499 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:33:30,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:33:30,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:33:30,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:33:30,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:33:30,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:33:30,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:33:30,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:33:30,520 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:33:30,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:33:30,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:33:30,528 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:33:30,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:33:30,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:33:30,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:33:30,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:33:30,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:33:30,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:33:30,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:33:30,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:33:30,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:33:30,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:33:30,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:33:30,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:33:30,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:33:30,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:33:30,563 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:33:30,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:33:30,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:33:30,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:33:30,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:33:30,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:33:30,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:33:30,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:33:30,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:33:30,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-21 01:33:30,613 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:33:30,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:33:30,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:33:30,615 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:33:30,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:33:30,616 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:33:30,616 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:33:30,616 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:33:30,617 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:33:30,617 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:33:30,618 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:33:30,618 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:33:30,618 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:33:30,619 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:33:30,619 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:33:30,619 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:33:30,619 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:33:30,620 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:33:30,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:33:30,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:33:30,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:33:30,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:33:30,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:33:30,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:33:30,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:33:30,622 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:33:30,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:33:30,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:33:30,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:33:30,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:33:30,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:33:30,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:33:30,625 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:33:30,625 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:33:30,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:33:30,626 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:33:30,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:33:30,626 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:33:30,626 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_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1f86bd80e1dfdf8246d3fbc9ed5a7a7eb69a7621f24c545347c1a1ff0b611568 [2021-11-21 01:33:30,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:33:30,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:33:30,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:33:30,955 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:33:30,955 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:33:30,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-21 01:33:31,048 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/data/90aade813/7644915dffd6472ea8171a4cb69d8bc6/FLAG1b7c5361d [2021-11-21 01:33:32,330 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:33:32,331 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-21 01:33:32,431 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/data/90aade813/7644915dffd6472ea8171a4cb69d8bc6/FLAG1b7c5361d [2021-11-21 01:33:32,908 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/data/90aade813/7644915dffd6472ea8171a4cb69d8bc6 [2021-11-21 01:33:32,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:33:32,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:33:32,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:33:32,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:33:32,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:33:32,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:33:32" (1/1) ... [2021-11-21 01:33:32,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c676935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:32, skipping insertion in model container [2021-11-21 01:33:32,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:33:32" (1/1) ... [2021-11-21 01:33:32,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:33:33,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:33:44,202 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_240b0fb8-8d43-4b96-b37f-14e5605ac214/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[950924,950937] [2021-11-21 01:33:44,205 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_240b0fb8-8d43-4b96-b37f-14e5605ac214/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[951069,951082] [2021-11-21 01:33:44,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:33:44,380 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:33:45,444 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_240b0fb8-8d43-4b96-b37f-14e5605ac214/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[950924,950937] [2021-11-21 01:33:45,445 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_240b0fb8-8d43-4b96-b37f-14e5605ac214/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i[951069,951082] [2021-11-21 01:33:45,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:33:46,085 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:33:46,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:46 WrapperNode [2021-11-21 01:33:46,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:33:46,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:33:46,087 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:33:46,087 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:33:46,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:46" (1/1) ... [2021-11-21 01:33:46,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:46" (1/1) ... [2021-11-21 01:33:47,318 INFO L137 Inliner]: procedures = 866, calls = 16600, calls flagged for inlining = 427, calls inlined = 364, statements flattened = 29024 [2021-11-21 01:33:47,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:33:47,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:33:47,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:33:47,322 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:33:47,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:46" (1/1) ... [2021-11-21 01:33:47,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:46" (1/1) ... [2021-11-21 01:33:47,779 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:46" (1/1) ... [2021-11-21 01:33:47,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:46" (1/1) ... [2021-11-21 01:33:48,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:46" (1/1) ... [2021-11-21 01:33:48,873 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:46" (1/1) ... [2021-11-21 01:33:49,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:46" (1/1) ... [2021-11-21 01:33:49,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:33:49,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:33:49,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:33:49,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:33:49,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:46" (1/1) ... [2021-11-21 01:33:49,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:33:49,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:33:49,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:33:49,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_240b0fb8-8d43-4b96-b37f-14e5605ac214/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:33:49,471 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_fc_after_link_up [2021-11-21 01:33:49,471 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_fc_after_link_up [2021-11-21 01:33:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2021-11-21 01:33:49,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2021-11-21 01:33:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_collision_dist [2021-11-21 01:33:49,472 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_collision_dist [2021-11-21 01:33:49,472 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_ee_clk [2021-11-21 01:33:49,473 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_ee_clk [2021-11-21 01:33:49,473 INFO L130 BoogieDeclarations]: Found specification of procedure device_set_wakeup_enable [2021-11-21 01:33:49,473 INFO L138 BoogieDeclarations]: Found implementation of procedure device_set_wakeup_enable [2021-11-21 01:33:49,473 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-11-21 01:33:49,473 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-11-21 01:33:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure reg_pattern_test [2021-11-21 01:33:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_pattern_test [2021-11-21 01:33:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-21 01:33:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-21 01:33:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2021-11-21 01:33:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2021-11-21 01:33:49,475 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_unmap_and_free_tx_resource [2021-11-21 01:33:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_unmap_and_free_tx_resource [2021-11-21 01:33:49,475 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-21 01:33:49,475 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-21 01:33:49,475 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-21 01:33:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-21 01:33:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_rctl [2021-11-21 01:33:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_rctl [2021-11-21 01:33:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-11-21 01:33:49,476 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-11-21 01:33:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_tail_pointer [2021-11-21 01:33:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_tail_pointer [2021-11-21 01:33:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset [2021-11-21 01:33:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset [2021-11-21 01:33:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure dma_zalloc_coherent [2021-11-21 01:33:49,478 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_zalloc_coherent [2021-11-21 01:33:49,478 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-11-21 01:33:49,479 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-11-21 01:33:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-21 01:33:49,479 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-21 01:33:49,479 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-21 01:33:49,480 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-21 01:33:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-21 01:33:49,480 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-21 01:33:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg [2021-11-21 01:33:49,480 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg [2021-11-21 01:33:49,480 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_speed_and_duplex [2021-11-21 01:33:49,481 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_speed_and_duplex [2021-11-21 01:33:49,481 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_bit [2021-11-21 01:33:49,482 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_bit [2021-11-21 01:33:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-21 01:33:49,483 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-21 01:33:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-21 01:33:49,483 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-21 01:33:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-11-21 01:33:49,484 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-11-21 01:33:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_113 [2021-11-21 01:33:49,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_113 [2021-11-21 01:33:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link [2021-11-21 01:33:49,484 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link [2021-11-21 01:33:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_irq [2021-11-21 01:33:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_irq [2021-11-21 01:33:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2021-11-21 01:33:49,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2021-11-21 01:33:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_vlan_mode [2021-11-21 01:33:49,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_vlan_mode [2021-11-21 01:33:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-21 01:33:49,486 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-21 01:33:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_dsp_after_link_change [2021-11-21 01:33:49,487 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_dsp_after_link_change [2021-11-21 01:33:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-21 01:33:49,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-21 01:33:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_maybe_stop_tx [2021-11-21 01:33:49,488 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_maybe_stop_tx [2021-11-21 01:33:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:33:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_108 [2021-11-21 01:33:49,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_108 [2021-11-21 01:33:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_used [2021-11-21 01:33:49,489 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_used [2021-11-21 01:33:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_force_mac_fc [2021-11-21 01:33:49,490 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_force_mac_fc [2021-11-21 01:33:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-11-21 01:33:49,490 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-11-21 01:33:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-21 01:33:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-21 01:33:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_leave_82542_rst [2021-11-21 01:33:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_leave_82542_rst [2021-11-21 01:33:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-21 01:33:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-21 01:33:49,492 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_tx_resources [2021-11-21 01:33:49,492 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_tx_resources [2021-11-21 01:33:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-21 01:33:49,493 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-21 01:33:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure reg_set_and_check [2021-11-21 01:33:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_set_and_check [2021-11-21 01:33:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:33:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-21 01:33:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-21 01:33:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-21 01:33:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-21 01:33:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-11-21 01:33:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-11-21 01:33:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_netpoll [2021-11-21 01:33:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_netpoll [2021-11-21 01:33:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:33:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-21 01:33:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-21 01:33:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-21 01:33:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-21 01:33:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:33:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_rx_mode [2021-11-21 01:33:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_rx_mode [2021-11-21 01:33:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-21 01:33:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-11-21 01:33:49,501 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-11-21 01:33:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_hw_reset [2021-11-21 01:33:49,502 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_hw_reset [2021-11-21 01:33:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:33:49,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2021-11-21 01:33:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_ee_bits [2021-11-21 01:33:49,503 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_ee_bits [2021-11-21 01:33:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-21 01:33:49,510 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-21 01:33:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_ee_clk [2021-11-21 01:33:49,510 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_ee_clk [2021-11-21 01:33:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-21 01:33:49,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-21 01:33:49,511 INFO L130 BoogieDeclarations]: Found specification of procedure device_can_wakeup [2021-11-21 01:33:49,511 INFO L138 BoogieDeclarations]: Found implementation of procedure device_can_wakeup [2021-11-21 01:33:49,511 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2021-11-21 01:33:49,511 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2021-11-21 01:33:49,511 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-21 01:33:49,511 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-21 01:33:49,512 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom [2021-11-21 01:33:49,512 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom [2021-11-21 01:33:49,512 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_enter_82542_rst [2021-11-21 01:33:49,512 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_enter_82542_rst [2021-11-21 01:33:49,512 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-21 01:33:49,512 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-21 01:33:49,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:33:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:33:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_down_phy [2021-11-21 01:33:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_down_phy [2021-11-21 01:33:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2021-11-21 01:33:49,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2021-11-21 01:33:49,513 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_spi_eeprom_ready [2021-11-21 01:33:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_spi_eeprom_ready [2021-11-21 01:33:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_clear_mwi [2021-11-21 01:33:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_clear_mwi [2021-11-21 01:33:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-21 01:33:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-21 01:33:49,514 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_power_up_phy [2021-11-21 01:33:49,514 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_power_up_phy [2021-11-21 01:33:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-21 01:33:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 01:33:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-21 01:33:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_phy_reg_ex [2021-11-21 01:33:49,515 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_phy_reg_ex [2021-11-21 01:33:49,515 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-21 01:33:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-21 01:33:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-21 01:33:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-11-21 01:33:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-11-21 01:33:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_resume [2021-11-21 01:33:49,516 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_resume [2021-11-21 01:33:49,516 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-11-21 01:33:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-11-21 01:33:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-21 01:33:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-21 01:33:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:33:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:33:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_raise_mdi_clk [2021-11-21 01:33:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_raise_mdi_clk [2021-11-21 01:33:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_config_mac_to_phy [2021-11-21 01:33:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_config_mac_to_phy [2021-11-21 01:33:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2021-11-21 01:33:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2021-11-21 01:33:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-11-21 01:33:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-11-21 01:33:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset_clk_and_crs [2021-11-21 01:33:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset_clk_and_crs [2021-11-21 01:33:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-21 01:33:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-21 01:33:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-21 01:33:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-21 01:33:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:33:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-21 01:33:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-21 01:33:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_119 [2021-11-21 01:33:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_119 [2021-11-21 01:33:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_regs_len [2021-11-21 01:33:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_regs_len [2021-11-21 01:33:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:33:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2021-11-21 01:33:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2021-11-21 01:33:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_tx_resources [2021-11-21 01:33:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_tx_resources [2021-11-21 01:33:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2021-11-21 01:33:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2021-11-21 01:33:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_setup_autoneg [2021-11-21 01:33:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_setup_autoneg [2021-11-21 01:33:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_mng_vlan [2021-11-21 01:33:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_mng_vlan [2021-11-21 01:33:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_filter_on_off [2021-11-21 01:33:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_filter_on_off [2021-11-21 01:33:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-11-21 01:33:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-11-21 01:33:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_nway_reset [2021-11-21 01:33:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_nway_reset [2021-11-21 01:33:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-21 01:33:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-21 01:33:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-21 01:33:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-21 01:33:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_all_rx_rings [2021-11-21 01:33:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_all_rx_rings [2021-11-21 01:33:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-21 01:33:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-21 01:33:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reinit_locked [2021-11-21 01:33:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reinit_locked [2021-11-21 01:33:49,525 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2021-11-21 01:33:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2021-11-21 01:33:49,525 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_phy_reg [2021-11-21 01:33:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_phy_reg [2021-11-21 01:33:49,525 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_all_rx_resources [2021-11-21 01:33:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_all_rx_resources [2021-11-21 01:33:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-11-21 01:33:49,526 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-11-21 01:33:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2021-11-21 01:33:49,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2021-11-21 01:33:49,526 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_copper_link_rtl_setup [2021-11-21 01:33:49,526 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_copper_link_rtl_setup [2021-11-21 01:33:49,527 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_desc_rings [2021-11-21 01:33:49,527 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_desc_rings [2021-11-21 01:33:49,527 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-11-21 01:33:49,527 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-11-21 01:33:49,527 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-21 01:33:49,527 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-21 01:33:49,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:33:49,529 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_64k_bound [2021-11-21 01:33:49,532 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_64k_bound [2021-11-21 01:33:49,533 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-21 01:33:49,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-21 01:33:49,533 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_request_irq [2021-11-21 01:33:49,533 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_request_irq [2021-11-21 01:33:49,533 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-11-21 01:33:49,533 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-11-21 01:33:49,534 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_eeprom [2021-11-21 01:33:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_eeprom [2021-11-21 01:33:49,535 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw [2021-11-21 01:33:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw [2021-11-21 01:33:49,536 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_disable [2021-11-21 01:33:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_disable [2021-11-21 01:33:49,536 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-11-21 01:33:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-11-21 01:33:49,536 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_tx_ring [2021-11-21 01:33:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_tx_ring [2021-11-21 01:33:49,537 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 01:33:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-11-21 01:33:49,537 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_manageability [2021-11-21 01:33:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_manageability [2021-11-21 01:33:49,537 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-11-21 01:33:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-11-21 01:33:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-11-21 01:33:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-11-21 01:33:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_112 [2021-11-21 01:33:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_112 [2021-11-21 01:33:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-21 01:33:49,538 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-11-21 01:33:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-11-21 01:33:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_clean_rx_ring [2021-11-21 01:33:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_clean_rx_ring [2021-11-21 01:33:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-21 01:33:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-21 01:33:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-21 01:33:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-21 01:33:49,539 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-11-21 01:33:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-11-21 01:33:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_eeprom [2021-11-21 01:33:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_eeprom [2021-11-21 01:33:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-21 01:33:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-21 01:33:49,540 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_release_manageability [2021-11-21 01:33:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_release_manageability [2021-11-21 01:33:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_in_ee_bits [2021-11-21 01:33:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_in_ee_bits [2021-11-21 01:33:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down_and_stop [2021-11-21 01:33:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down_and_stop [2021-11-21 01:33:49,541 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-11-21 01:33:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-11-21 01:33:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-11-21 01:33:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-11-21 01:33:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2021-11-21 01:33:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2021-11-21 01:33:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-11-21 01:33:49,542 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-11-21 01:33:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_get_info [2021-11-21 01:33:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_get_info [2021-11-21 01:33:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_do_read_eeprom [2021-11-21 01:33:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_do_read_eeprom [2021-11-21 01:33:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set [2021-11-21 01:33:49,543 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set [2021-11-21 01:33:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_eeprom_params [2021-11-21 01:33:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_eeprom_params [2021-11-21 01:33:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure phys_to_virt [2021-11-21 01:33:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure phys_to_virt [2021-11-21 01:33:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-21 01:33:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-21 01:33:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-21 01:33:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-21 01:33:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-21 01:33:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-21 01:33:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-21 01:33:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-21 01:33:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-11-21 01:33:49,545 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-11-21 01:33:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:33:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_standby_eeprom [2021-11-21 01:33:49,546 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_standby_eeprom [2021-11-21 01:33:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure_rx [2021-11-21 01:33:49,546 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure_rx [2021-11-21 01:33:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_hw_dev [2021-11-21 01:33:49,546 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_hw_dev [2021-11-21 01:33:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_update_stats [2021-11-21 01:33:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_update_stats [2021-11-21 01:33:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_validate_option [2021-11-21 01:33:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_validate_option [2021-11-21 01:33:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-21 01:33:49,547 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-21 01:33:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-21 01:33:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_link [2021-11-21 01:33:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_link [2021-11-21 01:33:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_reset [2021-11-21 01:33:49,548 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_reset [2021-11-21 01:33:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-21 01:33:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-21 01:33:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-21 01:33:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-21 01:33:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-21 01:33:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shutdown [2021-11-21 01:33:49,549 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shutdown [2021-11-21 01:33:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-21 01:33:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-21 01:33:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_disable_receiver [2021-11-21 01:33:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_disable_receiver [2021-11-21 01:33:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_kill_vid [2021-11-21 01:33:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_kill_vid [2021-11-21 01:33:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-11-21 01:33:49,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-11-21 01:33:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-21 01:33:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-21 01:33:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2021-11-21 01:33:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2021-11-21 01:33:49,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-21 01:33:49,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-21 01:33:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_has_link [2021-11-21 01:33:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_has_link [2021-11-21 01:33:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-11-21 01:33:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-11-21 01:33:49,552 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2021-11-21 01:33:49,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2021-11-21 01:33:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure pci_wake_from_d3 [2021-11-21 01:33:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_wake_from_d3 [2021-11-21 01:33:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-21 01:33:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-21 01:33:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-11-21 01:33:49,553 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-11-21 01:33:49,553 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:33:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-21 01:33:49,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-21 01:33:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-21 01:33:49,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-21 01:33:49,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-21 01:33:49,554 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_open [2021-11-21 01:33:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_open [2021-11-21 01:33:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-11-21 01:33:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-11-21 01:33:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_vfta [2021-11-21 01:33:49,555 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_vfta [2021-11-21 01:33:49,555 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_remove [2021-11-21 01:33:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_remove [2021-11-21 01:33:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_configure [2021-11-21 01:33:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_configure [2021-11-21 01:33:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-21 01:33:49,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-21 01:33:49,556 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-21 01:33:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-21 01:33:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-21 01:33:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-21 01:33:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_cable_length [2021-11-21 01:33:49,557 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_cable_length [2021-11-21 01:33:49,557 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-21 01:33:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-21 01:33:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_rx_resources [2021-11-21 01:33:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_rx_resources [2021-11-21 01:33:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_vlan_rx_add_vid [2021-11-21 01:33:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_vlan_rx_add_vid [2021-11-21 01:33:49,558 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-21 01:33:49,558 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-21 01:33:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_io_write [2021-11-21 01:33:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_io_write [2021-11-21 01:33:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-21 01:33:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-21 01:33:49,559 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_resume [2021-11-21 01:33:49,559 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_resume [2021-11-21 01:33:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-21 01:33:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-21 01:33:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_acquire_eeprom [2021-11-21 01:33:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_acquire_eeprom [2021-11-21 01:33:49,560 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-11-21 01:33:49,560 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-11-21 01:33:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-21 01:33:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-21 01:33:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-21 01:33:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-21 01:33:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-21 01:33:49,561 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2021-11-21 01:33:49,561 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2021-11-21 01:33:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-21 01:33:49,562 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-21 01:33:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_polarity [2021-11-21 01:33:49,562 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_polarity [2021-11-21 01:33:49,562 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-21 01:33:49,562 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-21 01:33:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-21 01:33:49,563 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-21 01:33:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_get_eeprom_len [2021-11-21 01:33:49,563 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_get_eeprom_len [2021-11-21 01:33:49,563 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-21 01:33:49,563 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-21 01:33:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_setup_all_rx_resources [2021-11-21 01:33:49,564 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_setup_all_rx_resources [2021-11-21 01:33:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2021-11-21 01:33:49,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2021-11-21 01:33:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_close [2021-11-21 01:33:49,564 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_close [2021-11-21 01:33:49,564 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-21 01:33:49,565 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-21 01:33:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-11-21 01:33:49,565 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-11-21 01:33:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-21 01:33:49,565 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-21 01:33:49,565 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-21 01:33:49,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-21 01:33:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure __pskb_pull_tail [2021-11-21 01:33:49,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __pskb_pull_tail [2021-11-21 01:33:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 01:33:49,566 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_media_type [2021-11-21 01:33:49,566 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_media_type [2021-11-21 01:33:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_eeprom [2021-11-21 01:33:49,567 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_eeprom [2021-11-21 01:33:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_phy_loopback [2021-11-21 01:33:49,567 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_phy_loopback [2021-11-21 01:33:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2021-11-21 01:33:49,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2021-11-21 01:33:49,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-21 01:33:49,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-21 01:33:49,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-11-21 01:33:49,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-11-21 01:33:49,568 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_irq_enable [2021-11-21 01:33:49,568 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_irq_enable [2021-11-21 01:33:49,568 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_up [2021-11-21 01:33:49,569 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_up [2021-11-21 01:33:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_tx_timeout [2021-11-21 01:33:49,569 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_tx_timeout [2021-11-21 01:33:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_lower_mdi_clk [2021-11-21 01:33:49,569 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_lower_mdi_clk [2021-11-21 01:33:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-21 01:33:49,569 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-21 01:33:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-21 01:33:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-21 01:33:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-11-21 01:33:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-11-21 01:33:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_eeprom [2021-11-21 01:33:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_eeprom [2021-11-21 01:33:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_pci_set_mwi [2021-11-21 01:33:49,571 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_pci_set_mwi [2021-11-21 01:33:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-11-21 01:33:49,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_stats_lock_of_e1000_adapter [2021-11-21 01:33:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_polarity_reversal_workaround [2021-11-21 01:33:49,571 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_polarity_reversal_workaround [2021-11-21 01:33:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-11-21 01:33:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-11-21 01:33:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-21 01:33:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2021-11-21 01:33:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-21 01:33:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-21 01:33:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_link_test [2021-11-21 01:33:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_link_test [2021-11-21 01:33:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_shift_out_mdi_bits [2021-11-21 01:33:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_shift_out_mdi_bits [2021-11-21 01:33:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_set_spd_dplx [2021-11-21 01:33:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_set_spd_dplx [2021-11-21 01:33:49,573 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2021-11-21 01:33:49,573 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2021-11-21 01:33:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_down [2021-11-21 01:33:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_down [2021-11-21 01:33:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-21 01:33:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-21 01:33:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_phy_init_script [2021-11-21 01:33:49,574 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_phy_init_script [2021-11-21 01:33:49,574 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-11-21 01:33:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-11-21 01:33:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2021-11-21 01:33:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2021-11-21 01:33:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-11-21 01:33:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-11-21 01:33:49,575 INFO L130 BoogieDeclarations]: Found specification of procedure __e1000_shutdown [2021-11-21 01:33:49,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __e1000_shutdown [2021-11-21 01:33:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_free_tx_resources [2021-11-21 01:33:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_free_tx_resources [2021-11-21 01:33:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-21 01:33:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-21 01:33:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-21 01:33:49,576 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-21 01:33:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2021-11-21 01:33:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2021-11-21 01:33:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2021-11-21 01:33:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2021-11-21 01:33:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_wol_exclusion [2021-11-21 01:33:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_wol_exclusion [2021-11-21 01:33:49,577 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-11-21 01:33:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-11-21 01:33:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2021-11-21 01:33:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_e1000_exit_module_13_2 [2021-11-21 01:33:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-21 01:33:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-21 01:33:49,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_e1000_phy_lock [2021-11-21 01:33:49,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_e1000_phy_lock [2021-11-21 01:33:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:33:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-21 01:33:49,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-21 01:33:49,579 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-21 01:33:51,925 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:33:51,931 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:33:53,395 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-21 01:34:58,496 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-21 01:34:58,777 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:35:07,219 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:35:07,219 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-21 01:35:07,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:35:07 BoogieIcfgContainer [2021-11-21 01:35:07,229 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:35:07,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:35:07,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:35:07,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:35:07,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:33:32" (1/3) ... [2021-11-21 01:35:07,236 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5efb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:35:07, skipping insertion in model container [2021-11-21 01:35:07,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:46" (2/3) ... [2021-11-21 01:35:07,237 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5efb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:35:07, skipping insertion in model container [2021-11-21 01:35:07,237 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:35:07" (3/3) ... [2021-11-21 01:35:07,240 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-e1000-e1000.cil.i [2021-11-21 01:35:07,245 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:35:07,246 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 01:35:07,334 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:35:07,341 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:35:07,341 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 01:35:07,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 6806 states, 4330 states have (on average 1.3404157043879907) internal successors, (5804), 4423 states have internal predecessors, (5804), 2222 states have call successors, (2222), 255 states have call predecessors, (2222), 254 states have return successors, (2216), 2208 states have call predecessors, (2216), 2216 states have call successors, (2216) [2021-11-21 01:35:07,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-21 01:35:07,553 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:35:07,554 INFO L514 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:35:07,555 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:35:07,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:35:07,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1380002487, now seen corresponding path program 1 times [2021-11-21 01:35:07,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:35:07,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361117324] [2021-11-21 01:35:07,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:35:07,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:35:08,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:35:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2073 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2073 trivial. 0 not checked. [2021-11-21 01:35:09,218 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:35:09,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361117324] [2021-11-21 01:35:09,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361117324] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:35:09,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:35:09,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:35:09,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281233373] [2021-11-21 01:35:09,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:35:09,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:35:09,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:35:09,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:35:09,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:35:09,288 INFO L87 Difference]: Start difference. First operand has 6806 states, 4330 states have (on average 1.3404157043879907) internal successors, (5804), 4423 states have internal predecessors, (5804), 2222 states have call successors, (2222), 255 states have call predecessors, (2222), 254 states have return successors, (2216), 2208 states have call predecessors, (2216), 2216 states have call successors, (2216) Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-21 01:35:13,212 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:23,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:26,080 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:27,508 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:29,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:31,540 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:33,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:37,924 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:38,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:35:38,313 INFO L93 Difference]: Finished difference Result 17934 states and 27027 transitions. [2021-11-21 01:35:38,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:35:38,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 280 [2021-11-21 01:35:38,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:35:38,466 INFO L225 Difference]: With dead ends: 17934 [2021-11-21 01:35:38,466 INFO L226 Difference]: Without dead ends: 11101 [2021-11-21 01:35:38,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:35:38,818 INFO L933 BasicCegarLoop]: 12813 mSDtfsCounter, 6536 mSDsluCounter, 10050 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6536 SdHoareTripleChecker+Valid, 22044 SdHoareTripleChecker+Invalid, 1953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:35:38,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6536 Valid, 22044 Invalid, 1953 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1941 Invalid, 5 Unknown, 0 Unchecked, 28.2s Time] [2021-11-21 01:35:38,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11101 states. [2021-11-21 01:35:39,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11101 to 11090. [2021-11-21 01:35:39,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11090 states, 7047 states have (on average 1.3310628636299133) internal successors, (9380), 7190 states have internal predecessors, (9380), 3597 states have call successors, (3597), 445 states have call predecessors, (3597), 444 states have return successors, (3597), 3585 states have call predecessors, (3597), 3597 states have call successors, (3597) [2021-11-21 01:35:40,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11090 states to 11090 states and 16574 transitions. [2021-11-21 01:35:40,079 INFO L78 Accepts]: Start accepts. Automaton has 11090 states and 16574 transitions. Word has length 280 [2021-11-21 01:35:40,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:35:40,084 INFO L470 AbstractCegarLoop]: Abstraction has 11090 states and 16574 transitions. [2021-11-21 01:35:40,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2021-11-21 01:35:40,087 INFO L276 IsEmpty]: Start isEmpty. Operand 11090 states and 16574 transitions. [2021-11-21 01:35:40,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-11-21 01:35:40,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:35:40,100 INFO L514 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:35:40,100 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:35:40,101 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:35:40,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:35:40,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1817324136, now seen corresponding path program 1 times [2021-11-21 01:35:40,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:35:40,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54037297] [2021-11-21 01:35:40,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:35:40,105 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:35:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:35:41,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2021-11-21 01:35:41,276 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:35:41,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54037297] [2021-11-21 01:35:41,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54037297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:35:41,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:35:41,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:35:41,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883228298] [2021-11-21 01:35:41,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:35:41,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:35:41,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:35:41,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:35:41,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:35:41,281 INFO L87 Difference]: Start difference. First operand 11090 states and 16574 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-21 01:35:45,276 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:48,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:55,447 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:01,299 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:03,745 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:05,873 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:07,909 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:10,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:13,078 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:15,943 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:18,182 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:36:18,474 INFO L93 Difference]: Finished difference Result 27394 states and 40948 transitions. [2021-11-21 01:36:18,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:36:18,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 280 [2021-11-21 01:36:18,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:36:18,636 INFO L225 Difference]: With dead ends: 27394 [2021-11-21 01:36:18,636 INFO L226 Difference]: Without dead ends: 16351 [2021-11-21 01:36:18,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:36:18,725 INFO L933 BasicCegarLoop]: 14810 mSDtfsCounter, 7665 mSDsluCounter, 10082 mSDsCounter, 0 mSdLazyCounter, 2348 mSolverCounterSat, 17 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7679 SdHoareTripleChecker+Valid, 24029 SdHoareTripleChecker+Invalid, 2375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2348 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:36:18,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7679 Valid, 24029 Invalid, 2375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 2348 Invalid, 10 Unknown, 0 Unchecked, 36.6s Time] [2021-11-21 01:36:18,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16351 states. [2021-11-21 01:36:20,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16351 to 16340. [2021-11-21 01:36:20,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16340 states, 10393 states have (on average 1.330414702203406) internal successors, (13827), 10608 states have internal predecessors, (13827), 5287 states have call successors, (5287), 660 states have call predecessors, (5287), 658 states have return successors, (5289), 5263 states have call predecessors, (5289), 5287 states have call successors, (5289) [2021-11-21 01:36:20,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16340 states to 16340 states and 24403 transitions. [2021-11-21 01:36:20,409 INFO L78 Accepts]: Start accepts. Automaton has 16340 states and 24403 transitions. Word has length 280 [2021-11-21 01:36:20,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:36:20,411 INFO L470 AbstractCegarLoop]: Abstraction has 16340 states and 24403 transitions. [2021-11-21 01:36:20,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-21 01:36:20,412 INFO L276 IsEmpty]: Start isEmpty. Operand 16340 states and 24403 transitions. [2021-11-21 01:36:20,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-11-21 01:36:20,421 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:36:20,422 INFO L514 BasicCegarLoop]: trace histogram [27, 23, 23, 23, 23, 23, 23, 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] [2021-11-21 01:36:20,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:36:20,422 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:36:20,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:36:20,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1144833792, now seen corresponding path program 1 times [2021-11-21 01:36:20,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:36:20,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142231270] [2021-11-21 01:36:20,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:20,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:36:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:21,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2241 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2238 trivial. 0 not checked. [2021-11-21 01:36:21,264 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:36:21,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142231270] [2021-11-21 01:36:21,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142231270] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:36:21,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:36:21,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:36:21,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437386787] [2021-11-21 01:36:21,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:36:21,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:36:21,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:36:21,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:36:21,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:36:21,268 INFO L87 Difference]: Start difference. First operand 16340 states and 24403 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-21 01:36:25,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:35,071 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:37,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:39,417 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:41,444 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:43,476 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:45,585 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:49,574 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:53,131 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:53,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:36:53,626 INFO L93 Difference]: Finished difference Result 38449 states and 57451 transitions. [2021-11-21 01:36:53,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:36:53,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 327 [2021-11-21 01:36:53,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:36:53,780 INFO L225 Difference]: With dead ends: 38449 [2021-11-21 01:36:53,780 INFO L226 Difference]: Without dead ends: 22156 [2021-11-21 01:36:53,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:36:53,876 INFO L933 BasicCegarLoop]: 17012 mSDtfsCounter, 8519 mSDsluCounter, 10077 mSDsCounter, 0 mSdLazyCounter, 2533 mSolverCounterSat, 15 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8522 SdHoareTripleChecker+Valid, 26223 SdHoareTripleChecker+Invalid, 2555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2533 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:36:53,878 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8522 Valid, 26223 Invalid, 2555 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 2533 Invalid, 7 Unknown, 0 Unchecked, 31.5s Time] [2021-11-21 01:36:53,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22156 states. [2021-11-21 01:36:55,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22156 to 22147. [2021-11-21 01:36:55,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22147 states, 14094 states have (on average 1.3293600113523485) internal successors, (18736), 14387 states have internal predecessors, (18736), 7170 states have call successors, (7170), 883 states have call predecessors, (7170), 881 states have return successors, (7175), 7135 states have call predecessors, (7175), 7170 states have call successors, (7175) [2021-11-21 01:36:55,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22147 states to 22147 states and 33081 transitions. [2021-11-21 01:36:55,918 INFO L78 Accepts]: Start accepts. Automaton has 22147 states and 33081 transitions. Word has length 327 [2021-11-21 01:36:55,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:36:55,920 INFO L470 AbstractCegarLoop]: Abstraction has 22147 states and 33081 transitions. [2021-11-21 01:36:55,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2021-11-21 01:36:55,920 INFO L276 IsEmpty]: Start isEmpty. Operand 22147 states and 33081 transitions. [2021-11-21 01:36:55,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-11-21 01:36:55,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:36:55,932 INFO L514 BasicCegarLoop]: trace histogram [29, 23, 23, 23, 23, 23, 23, 8, 8, 3, 3, 3, 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] [2021-11-21 01:36:55,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:36:55,933 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:36:55,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:36:55,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1481159874, now seen corresponding path program 1 times [2021-11-21 01:36:55,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:36:55,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298122779] [2021-11-21 01:36:55,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:55,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:36:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:56,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2441 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2426 trivial. 0 not checked. [2021-11-21 01:36:56,777 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:36:56,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298122779] [2021-11-21 01:36:56,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298122779] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:36:56,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:36:56,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:36:56,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331316332] [2021-11-21 01:36:56,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:36:56,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:36:56,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:36:56,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:36:56,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:36:56,782 INFO L87 Difference]: Start difference. First operand 22147 states and 33081 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 01:37:00,527 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:11,601 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:14,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:16,662 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:18,693 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:21,787 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:26,085 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:29,353 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:31,656 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:32,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:37:32,006 INFO L93 Difference]: Finished difference Result 50127 states and 74869 transitions. [2021-11-21 01:37:32,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:37:32,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 389 [2021-11-21 01:37:32,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:37:32,191 INFO L225 Difference]: With dead ends: 50127 [2021-11-21 01:37:32,191 INFO L226 Difference]: Without dead ends: 28027 [2021-11-21 01:37:32,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:37:32,381 INFO L933 BasicCegarLoop]: 16980 mSDtfsCounter, 8672 mSDsluCounter, 9961 mSDsCounter, 0 mSdLazyCounter, 2518 mSolverCounterSat, 19 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8675 SdHoareTripleChecker+Valid, 26087 SdHoareTripleChecker+Invalid, 2546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 2518 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:37:32,384 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8675 Valid, 26087 Invalid, 2546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 2518 Invalid, 9 Unknown, 0 Unchecked, 34.3s Time] [2021-11-21 01:37:32,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28027 states. [2021-11-21 01:37:34,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28027 to 28016. [2021-11-21 01:37:34,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28016 states, 17830 states have (on average 1.3283791362871564) internal successors, (23685), 18203 states have internal predecessors, (23685), 9062 states have call successors, (9062), 1124 states have call predecessors, (9062), 1122 states have return successors, (9070), 9014 states have call predecessors, (9070), 9062 states have call successors, (9070) [2021-11-21 01:37:34,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28016 states to 28016 states and 41817 transitions. [2021-11-21 01:37:34,785 INFO L78 Accepts]: Start accepts. Automaton has 28016 states and 41817 transitions. Word has length 389 [2021-11-21 01:37:34,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:37:34,786 INFO L470 AbstractCegarLoop]: Abstraction has 28016 states and 41817 transitions. [2021-11-21 01:37:34,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2021-11-21 01:37:34,787 INFO L276 IsEmpty]: Start isEmpty. Operand 28016 states and 41817 transitions. [2021-11-21 01:37:34,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2021-11-21 01:37:34,801 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:37:34,803 INFO L514 BasicCegarLoop]: trace histogram [31, 23, 23, 23, 23, 23, 23, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-21 01:37:34,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:37:34,803 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:37:34,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:37:34,804 INFO L85 PathProgramCache]: Analyzing trace with hash 884257661, now seen corresponding path program 1 times [2021-11-21 01:37:34,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:37:34,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428724565] [2021-11-21 01:37:34,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:37:34,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:37:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:37:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 2650 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 2622 trivial. 0 not checked. [2021-11-21 01:37:35,569 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:37:35,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428724565] [2021-11-21 01:37:35,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428724565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:37:35,570 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:37:35,570 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:37:35,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52078608] [2021-11-21 01:37:35,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:37:35,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:37:35,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:37:35,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:37:35,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:37:35,574 INFO L87 Difference]: Start difference. First operand 28016 states and 41817 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-21 01:37:39,830 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:52,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:55,535 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:56,613 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:37:58,328 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:00,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:02,382 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:04,421 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:06,555 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:09,166 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:11,330 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:14,667 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:17,065 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:17,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:38:17,451 INFO L93 Difference]: Finished difference Result 61435 states and 92205 transitions. [2021-11-21 01:38:17,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:38:17,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 444 [2021-11-21 01:38:17,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:38:17,657 INFO L225 Difference]: With dead ends: 61435 [2021-11-21 01:38:17,658 INFO L226 Difference]: Without dead ends: 33466 [2021-11-21 01:38:17,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:38:17,790 INFO L933 BasicCegarLoop]: 10864 mSDtfsCounter, 2357 mSDsluCounter, 21037 mSDsCounter, 0 mSdLazyCounter, 2869 mSolverCounterSat, 966 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2357 SdHoareTripleChecker+Valid, 30145 SdHoareTripleChecker+Invalid, 3844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 966 IncrementalHoareTripleChecker+Valid, 2869 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:38:17,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2357 Valid, 30145 Invalid, 3844 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [966 Valid, 2869 Invalid, 9 Unknown, 0 Unchecked, 40.7s Time] [2021-11-21 01:38:17,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33466 states. [2021-11-21 01:38:20,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33466 to 28020. [2021-11-21 01:38:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28020 states, 17834 states have (on average 1.3283054839071438) internal successors, (23689), 18207 states have internal predecessors, (23689), 9062 states have call successors, (9062), 1124 states have call predecessors, (9062), 1122 states have return successors, (9070), 9014 states have call predecessors, (9070), 9062 states have call successors, (9070) [2021-11-21 01:38:20,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28020 states to 28020 states and 41821 transitions. [2021-11-21 01:38:20,505 INFO L78 Accepts]: Start accepts. Automaton has 28020 states and 41821 transitions. Word has length 444 [2021-11-21 01:38:20,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:38:20,508 INFO L470 AbstractCegarLoop]: Abstraction has 28020 states and 41821 transitions. [2021-11-21 01:38:20,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-21 01:38:20,508 INFO L276 IsEmpty]: Start isEmpty. Operand 28020 states and 41821 transitions. [2021-11-21 01:38:20,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2021-11-21 01:38:20,520 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:38:20,520 INFO L514 BasicCegarLoop]: trace histogram [31, 23, 23, 23, 23, 23, 23, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-21 01:38:20,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:38:20,521 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:38:20,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:38:20,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1421701729, now seen corresponding path program 1 times [2021-11-21 01:38:20,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:38:20,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445343176] [2021-11-21 01:38:20,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:38:20,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:38:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:38:22,938 INFO L134 CoverageAnalysis]: Checked inductivity of 2650 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2650 trivial. 0 not checked. [2021-11-21 01:38:22,938 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:38:22,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445343176] [2021-11-21 01:38:22,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445343176] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:38:22,938 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:38:22,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:38:22,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149593959] [2021-11-21 01:38:22,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:38:22,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:38:22,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:38:22,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:38:22,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:38:22,941 INFO L87 Difference]: Start difference. First operand 28020 states and 41821 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-21 01:38:30,395 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:52,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:55,324 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:38:58,017 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:00,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:02,256 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:08,477 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:13,723 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:16,609 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.89s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:18,887 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:19,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:19,273 INFO L93 Difference]: Finished difference Result 31162 states and 46318 transitions. [2021-11-21 01:39:19,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:39:19,274 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) Word has length 444 [2021-11-21 01:39:19,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:19,403 INFO L225 Difference]: With dead ends: 31162 [2021-11-21 01:39:19,404 INFO L226 Difference]: Without dead ends: 31160 [2021-11-21 01:39:19,423 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:39:19,423 INFO L933 BasicCegarLoop]: 11249 mSDtfsCounter, 3874 mSDsluCounter, 44714 mSDsCounter, 0 mSdLazyCounter, 6722 mSolverCounterSat, 8 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3883 SdHoareTripleChecker+Valid, 52238 SdHoareTripleChecker+Invalid, 6739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 6722 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:19,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3883 Valid, 52238 Invalid, 6739 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8 Valid, 6722 Invalid, 9 Unknown, 0 Unchecked, 54.8s Time] [2021-11-21 01:39:19,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31160 states. [2021-11-21 01:39:21,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31160 to 31149. [2021-11-21 01:39:21,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31149 states, 19754 states have (on average 1.3218082413688368) internal successors, (26111), 20199 states have internal predecessors, (26111), 10074 states have call successors, (10074), 1327 states have call predecessors, (10074), 1319 states have return successors, (10117), 9989 states have call predecessors, (10117), 10074 states have call successors, (10117) [2021-11-21 01:39:21,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31149 states to 31149 states and 46302 transitions. [2021-11-21 01:39:21,854 INFO L78 Accepts]: Start accepts. Automaton has 31149 states and 46302 transitions. Word has length 444 [2021-11-21 01:39:21,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:39:21,855 INFO L470 AbstractCegarLoop]: Abstraction has 31149 states and 46302 transitions. [2021-11-21 01:39:21,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2021-11-21 01:39:21,856 INFO L276 IsEmpty]: Start isEmpty. Operand 31149 states and 46302 transitions. [2021-11-21 01:39:21,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2021-11-21 01:39:21,870 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:21,871 INFO L514 BasicCegarLoop]: trace histogram [31, 23, 23, 23, 23, 23, 23, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-21 01:39:21,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:39:21,871 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:39:21,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:21,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1325405376, now seen corresponding path program 1 times [2021-11-21 01:39:21,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:21,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809284510] [2021-11-21 01:39:21,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:21,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:23,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2669 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 2624 trivial. 0 not checked. [2021-11-21 01:39:23,008 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:23,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809284510] [2021-11-21 01:39:23,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809284510] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:23,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:23,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:39:23,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436095017] [2021-11-21 01:39:23,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:23,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:39:23,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:23,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:39:23,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:39:23,012 INFO L87 Difference]: Start difference. First operand 31149 states and 46302 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-21 01:39:45,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:47,314 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:50,135 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:52,175 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:54,296 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:39:59,046 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:04,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:06,899 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:07,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:07,645 INFO L93 Difference]: Finished difference Result 68189 states and 101417 transitions. [2021-11-21 01:40:07,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:40:07,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 465 [2021-11-21 01:40:07,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:07,836 INFO L225 Difference]: With dead ends: 68189 [2021-11-21 01:40:07,836 INFO L226 Difference]: Without dead ends: 37105 [2021-11-21 01:40:08,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:40:08,076 INFO L933 BasicCegarLoop]: 15435 mSDtfsCounter, 8548 mSDsluCounter, 14878 mSDsCounter, 0 mSdLazyCounter, 6718 mSolverCounterSat, 20 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8551 SdHoareTripleChecker+Valid, 28728 SdHoareTripleChecker+Invalid, 6745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 6718 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:08,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8551 Valid, 28728 Invalid, 6745 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 6718 Invalid, 7 Unknown, 0 Unchecked, 43.0s Time] [2021-11-21 01:40:08,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37105 states. [2021-11-21 01:40:10,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37105 to 37095. [2021-11-21 01:40:10,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37095 states, 23556 states have (on average 1.3224656138563424) internal successors, (31152), 24080 states have internal predecessors, (31152), 11981 states have call successors, (11981), 1564 states have call predecessors, (11981), 1556 states have return successors, (12027), 11884 states have call predecessors, (12027), 11981 states have call successors, (12027) [2021-11-21 01:40:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37095 states to 37095 states and 55160 transitions. [2021-11-21 01:40:10,531 INFO L78 Accepts]: Start accepts. Automaton has 37095 states and 55160 transitions. Word has length 465 [2021-11-21 01:40:10,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:10,532 INFO L470 AbstractCegarLoop]: Abstraction has 37095 states and 55160 transitions. [2021-11-21 01:40:10,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2021-11-21 01:40:10,533 INFO L276 IsEmpty]: Start isEmpty. Operand 37095 states and 55160 transitions. [2021-11-21 01:40:10,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2021-11-21 01:40:10,541 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:10,541 INFO L514 BasicCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 11, 11, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:10,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:40:10,542 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:40:10,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:10,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1203724484, now seen corresponding path program 1 times [2021-11-21 01:40:10,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:10,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767587437] [2021-11-21 01:40:10,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:10,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:11,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2996 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2996 trivial. 0 not checked. [2021-11-21 01:40:11,364 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:11,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767587437] [2021-11-21 01:40:11,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767587437] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:11,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:11,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:40:11,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031446187] [2021-11-21 01:40:11,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:11,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:40:11,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:11,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:40:11,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:40:11,366 INFO L87 Difference]: Start difference. First operand 37095 states and 55160 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-21 01:40:16,396 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:27,158 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:31,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:35,955 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:37,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:40,140 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:43,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:46,069 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:50,322 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:40:50,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:40:50,773 INFO L93 Difference]: Finished difference Result 91807 states and 138714 transitions. [2021-11-21 01:40:50,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:40:50,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 479 [2021-11-21 01:40:50,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:40:51,099 INFO L225 Difference]: With dead ends: 91807 [2021-11-21 01:40:51,099 INFO L226 Difference]: Without dead ends: 58008 [2021-11-21 01:40:51,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:40:51,283 INFO L933 BasicCegarLoop]: 11248 mSDtfsCounter, 4942 mSDsluCounter, 22609 mSDsCounter, 0 mSdLazyCounter, 3038 mSolverCounterSat, 1010 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5992 SdHoareTripleChecker+Valid, 31831 SdHoareTripleChecker+Invalid, 4057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1010 IncrementalHoareTripleChecker+Valid, 3038 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:40:51,283 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5992 Valid, 31831 Invalid, 4057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1010 Valid, 3038 Invalid, 9 Unknown, 0 Unchecked, 36.9s Time] [2021-11-21 01:40:51,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58008 states. [2021-11-21 01:40:54,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58008 to 37097. [2021-11-21 01:40:54,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37097 states, 23558 states have (on average 1.3224382375413872) internal successors, (31154), 24082 states have internal predecessors, (31154), 11981 states have call successors, (11981), 1564 states have call predecessors, (11981), 1556 states have return successors, (12027), 11884 states have call predecessors, (12027), 11981 states have call successors, (12027) [2021-11-21 01:40:55,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37097 states to 37097 states and 55162 transitions. [2021-11-21 01:40:55,037 INFO L78 Accepts]: Start accepts. Automaton has 37097 states and 55162 transitions. Word has length 479 [2021-11-21 01:40:55,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:40:55,038 INFO L470 AbstractCegarLoop]: Abstraction has 37097 states and 55162 transitions. [2021-11-21 01:40:55,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2021-11-21 01:40:55,038 INFO L276 IsEmpty]: Start isEmpty. Operand 37097 states and 55162 transitions. [2021-11-21 01:40:55,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2021-11-21 01:40:55,047 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:40:55,048 INFO L514 BasicCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:40:55,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:40:55,048 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:40:55,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:40:55,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1160603805, now seen corresponding path program 1 times [2021-11-21 01:40:55,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:40:55,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758772459] [2021-11-21 01:40:55,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:40:55,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:40:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:40:56,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2998 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2998 trivial. 0 not checked. [2021-11-21 01:40:56,134 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:40:56,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758772459] [2021-11-21 01:40:56,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758772459] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:40:56,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:40:56,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:40:56,135 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16186810] [2021-11-21 01:40:56,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:40:56,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:40:56,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:40:56,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:40:56,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:40:56,137 INFO L87 Difference]: Start difference. First operand 37097 states and 55162 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-21 01:41:00,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:13,809 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:18,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:20,087 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:22,274 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:24,965 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:30,361 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:31,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:41:31,265 INFO L93 Difference]: Finished difference Result 77713 states and 116431 transitions. [2021-11-21 01:41:31,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:41:31,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 497 [2021-11-21 01:41:31,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:41:31,459 INFO L225 Difference]: With dead ends: 77713 [2021-11-21 01:41:31,459 INFO L226 Difference]: Without dead ends: 43912 [2021-11-21 01:41:31,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:31,696 INFO L933 BasicCegarLoop]: 10032 mSDtfsCounter, 2465 mSDsluCounter, 20441 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 975 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2465 SdHoareTripleChecker+Valid, 28717 SdHoareTripleChecker+Invalid, 3673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 975 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:41:31,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2465 Valid, 28717 Invalid, 3673 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [975 Valid, 2691 Invalid, 7 Unknown, 0 Unchecked, 33.2s Time] [2021-11-21 01:41:31,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43912 states. [2021-11-21 01:41:34,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43912 to 37099. [2021-11-21 01:41:34,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37099 states, 23560 states have (on average 1.3224108658743634) internal successors, (31156), 24084 states have internal predecessors, (31156), 11981 states have call successors, (11981), 1564 states have call predecessors, (11981), 1556 states have return successors, (12027), 11884 states have call predecessors, (12027), 11981 states have call successors, (12027) [2021-11-21 01:41:34,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37099 states to 37099 states and 55164 transitions. [2021-11-21 01:41:34,599 INFO L78 Accepts]: Start accepts. Automaton has 37099 states and 55164 transitions. Word has length 497 [2021-11-21 01:41:34,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:41:34,600 INFO L470 AbstractCegarLoop]: Abstraction has 37099 states and 55164 transitions. [2021-11-21 01:41:34,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-21 01:41:34,601 INFO L276 IsEmpty]: Start isEmpty. Operand 37099 states and 55164 transitions. [2021-11-21 01:41:34,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 502 [2021-11-21 01:41:34,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:41:34,611 INFO L514 BasicCegarLoop]: trace histogram [33, 23, 23, 23, 23, 23, 23, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-21 01:41:34,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:41:34,611 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:41:34,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:41:34,612 INFO L85 PathProgramCache]: Analyzing trace with hash 910753010, now seen corresponding path program 1 times [2021-11-21 01:41:34,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:41:34,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017993677] [2021-11-21 01:41:34,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:41:34,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:41:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:41:35,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2887 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 2822 trivial. 0 not checked. [2021-11-21 01:41:35,579 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:41:35,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017993677] [2021-11-21 01:41:35,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017993677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:41:35,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:41:35,579 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:41:35,579 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931170225] [2021-11-21 01:41:35,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:41:35,580 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:41:35,580 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:41:35,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:41:35,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:41:35,581 INFO L87 Difference]: Start difference. First operand 37099 states and 55164 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-21 01:41:38,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:41,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:44,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:45,490 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:41:53,622 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:10,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:14,516 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:17,533 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:19,392 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:22,214 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:24,261 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:26,910 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:28,923 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:30,933 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:35,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:39,958 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:42,317 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:44,454 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:47,404 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:42:47,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:42:47,947 INFO L93 Difference]: Finished difference Result 85531 states and 127185 transitions. [2021-11-21 01:42:47,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:42:47,948 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) Word has length 501 [2021-11-21 01:42:47,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:42:48,324 INFO L225 Difference]: With dead ends: 85531 [2021-11-21 01:42:48,324 INFO L226 Difference]: Without dead ends: 48497 [2021-11-21 01:42:48,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:42:48,464 INFO L933 BasicCegarLoop]: 16601 mSDtfsCounter, 8642 mSDsluCounter, 46357 mSDsCounter, 0 mSdLazyCounter, 5564 mSolverCounterSat, 3 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8645 SdHoareTripleChecker+Valid, 59005 SdHoareTripleChecker+Invalid, 5582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5564 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 70.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:42:48,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8645 Valid, 59005 Invalid, 5582 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 5564 Invalid, 15 Unknown, 0 Unchecked, 70.1s Time] [2021-11-21 01:42:48,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48497 states. [2021-11-21 01:42:51,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48497 to 48481. [2021-11-21 01:42:51,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48481 states, 30753 states have (on average 1.3208142295060645) internal successors, (40619), 31452 states have internal predecessors, (40619), 15699 states have call successors, (15699), 2038 states have call predecessors, (15699), 2027 states have return successors, (15766), 15559 states have call predecessors, (15766), 15699 states have call successors, (15766) [2021-11-21 01:42:51,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48481 states to 48481 states and 72084 transitions. [2021-11-21 01:42:51,875 INFO L78 Accepts]: Start accepts. Automaton has 48481 states and 72084 transitions. Word has length 501 [2021-11-21 01:42:51,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:42:51,876 INFO L470 AbstractCegarLoop]: Abstraction has 48481 states and 72084 transitions. [2021-11-21 01:42:51,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-21 01:42:51,876 INFO L276 IsEmpty]: Start isEmpty. Operand 48481 states and 72084 transitions. [2021-11-21 01:42:51,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2021-11-21 01:42:51,888 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:42:51,889 INFO L514 BasicCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:42:51,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:42:51,889 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:42:51,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:42:51,890 INFO L85 PathProgramCache]: Analyzing trace with hash 2141323552, now seen corresponding path program 1 times [2021-11-21 01:42:51,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:42:51,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322209590] [2021-11-21 01:42:51,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:42:51,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:42:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:42:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2998 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2998 trivial. 0 not checked. [2021-11-21 01:42:53,460 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:42:53,461 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322209590] [2021-11-21 01:42:53,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322209590] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:42:53,461 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:42:53,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:42:53,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864762160] [2021-11-21 01:42:53,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:42:53,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:42:53,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:42:53,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:42:53,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:42:53,463 INFO L87 Difference]: Start difference. First operand 48481 states and 72084 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-21 01:42:59,649 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:13,917 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:16,284 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:19,692 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:21,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:23,682 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:25,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:27,905 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:36,848 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:43:37,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:43:37,256 INFO L93 Difference]: Finished difference Result 114295 states and 171582 transitions. [2021-11-21 01:43:37,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:43:37,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 500 [2021-11-21 01:43:37,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:43:37,820 INFO L225 Difference]: With dead ends: 114295 [2021-11-21 01:43:37,821 INFO L226 Difference]: Without dead ends: 65879 [2021-11-21 01:43:38,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:38,143 INFO L933 BasicCegarLoop]: 11719 mSDtfsCounter, 3640 mSDsluCounter, 23016 mSDsCounter, 0 mSdLazyCounter, 3218 mSolverCounterSat, 986 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4140 SdHoareTripleChecker+Valid, 32696 SdHoareTripleChecker+Invalid, 4211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 986 IncrementalHoareTripleChecker+Valid, 3218 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:43:38,144 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4140 Valid, 32696 Invalid, 4211 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [986 Valid, 3218 Invalid, 7 Unknown, 0 Unchecked, 40.3s Time] [2021-11-21 01:43:38,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65879 states. [2021-11-21 01:43:42,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65879 to 48487. [2021-11-21 01:43:42,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48487 states, 30759 states have (on average 1.3207516499235996) internal successors, (40625), 31458 states have internal predecessors, (40625), 15699 states have call successors, (15699), 2038 states have call predecessors, (15699), 2027 states have return successors, (15766), 15559 states have call predecessors, (15766), 15699 states have call successors, (15766) [2021-11-21 01:43:42,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48487 states to 48487 states and 72090 transitions. [2021-11-21 01:43:42,391 INFO L78 Accepts]: Start accepts. Automaton has 48487 states and 72090 transitions. Word has length 500 [2021-11-21 01:43:42,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:43:42,393 INFO L470 AbstractCegarLoop]: Abstraction has 48487 states and 72090 transitions. [2021-11-21 01:43:42,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2021-11-21 01:43:42,393 INFO L276 IsEmpty]: Start isEmpty. Operand 48487 states and 72090 transitions. [2021-11-21 01:43:42,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2021-11-21 01:43:42,404 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:43:42,404 INFO L514 BasicCegarLoop]: trace histogram [33, 23, 23, 23, 23, 23, 23, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-21 01:43:42,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 01:43:42,405 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:43:42,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:43:42,405 INFO L85 PathProgramCache]: Analyzing trace with hash -309399487, now seen corresponding path program 1 times [2021-11-21 01:43:42,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:43:42,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772247145] [2021-11-21 01:43:42,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:43:42,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:43:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:43:43,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2887 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 2822 trivial. 0 not checked. [2021-11-21 01:43:43,669 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:43:43,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772247145] [2021-11-21 01:43:43,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772247145] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:43:43,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:43:43,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:43:43,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144294576] [2021-11-21 01:43:43,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:43:43,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:43:43,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:43:43,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:43:43,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:43:43,672 INFO L87 Difference]: Start difference. First operand 48487 states and 72090 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-21 01:43:49,351 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:00,361 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:16,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:22,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:26,263 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:28,316 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:30,512 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:35,871 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:41,049 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:43,494 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:44,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:44:44,109 INFO L93 Difference]: Finished difference Result 108130 states and 160766 transitions. [2021-11-21 01:44:44,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:44:44,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) Word has length 502 [2021-11-21 01:44:44,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:44:44,446 INFO L225 Difference]: With dead ends: 108130 [2021-11-21 01:44:44,446 INFO L226 Difference]: Without dead ends: 59708 [2021-11-21 01:44:44,797 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:44:44,798 INFO L933 BasicCegarLoop]: 17164 mSDtfsCounter, 8648 mSDsluCounter, 47612 mSDsCounter, 0 mSdLazyCounter, 5784 mSolverCounterSat, 8 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8651 SdHoareTripleChecker+Valid, 60694 SdHoareTripleChecker+Invalid, 5800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5784 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:44:44,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8651 Valid, 60694 Invalid, 5800 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 5784 Invalid, 8 Unknown, 0 Unchecked, 57.3s Time] [2021-11-21 01:44:44,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59708 states. [2021-11-21 01:44:48,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59708 to 59692. [2021-11-21 01:44:49,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59692 states, 37862 states have (on average 1.3198193439332313) internal successors, (49971), 38724 states have internal predecessors, (49971), 19333 states have call successors, (19333), 2509 states have call predecessors, (19333), 2495 states have return successors, (19420), 19150 states have call predecessors, (19420), 19333 states have call successors, (19420) [2021-11-21 01:44:49,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59692 states to 59692 states and 88724 transitions. [2021-11-21 01:44:49,470 INFO L78 Accepts]: Start accepts. Automaton has 59692 states and 88724 transitions. Word has length 502 [2021-11-21 01:44:49,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:44:49,472 INFO L470 AbstractCegarLoop]: Abstraction has 59692 states and 88724 transitions. [2021-11-21 01:44:49,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-21 01:44:49,472 INFO L276 IsEmpty]: Start isEmpty. Operand 59692 states and 88724 transitions. [2021-11-21 01:44:49,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2021-11-21 01:44:49,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:44:49,484 INFO L514 BasicCegarLoop]: trace histogram [33, 23, 23, 23, 23, 23, 23, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-21 01:44:49,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:44:49,485 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:44:49,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:44:49,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1679109418, now seen corresponding path program 1 times [2021-11-21 01:44:49,486 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:44:49,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172582056] [2021-11-21 01:44:49,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:44:49,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:44:50,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:44:50,663 INFO L134 CoverageAnalysis]: Checked inductivity of 2887 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 2822 trivial. 0 not checked. [2021-11-21 01:44:50,663 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:44:50,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172582056] [2021-11-21 01:44:50,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172582056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:44:50,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:44:50,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:44:50,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923722527] [2021-11-21 01:44:50,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:44:50,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:44:50,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:44:50,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:44:50,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:44:50,666 INFO L87 Difference]: Start difference. First operand 59692 states and 88724 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-21 01:44:56,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:44:59,029 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:01,072 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:03,115 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:07,793 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:16,576 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:26,675 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:32,526 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:35,217 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:38,217 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:40,293 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:43,125 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:45,170 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:47,366 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:52,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:45:58,192 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:00,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:02,742 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:46:03,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:46:03,362 INFO L93 Difference]: Finished difference Result 129829 states and 193085 transitions. [2021-11-21 01:46:03,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:46:03,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) Word has length 503 [2021-11-21 01:46:03,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:46:03,750 INFO L225 Difference]: With dead ends: 129829 [2021-11-21 01:46:03,750 INFO L226 Difference]: Without dead ends: 70202 [2021-11-21 01:46:04,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:46:04,211 INFO L933 BasicCegarLoop]: 16902 mSDtfsCounter, 8531 mSDsluCounter, 47021 mSDsCounter, 0 mSdLazyCounter, 5687 mSolverCounterSat, 10 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8534 SdHoareTripleChecker+Valid, 59906 SdHoareTripleChecker+Invalid, 5708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 5687 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:46:04,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8534 Valid, 59906 Invalid, 5708 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 5687 Invalid, 11 Unknown, 0 Unchecked, 69.0s Time] [2021-11-21 01:46:04,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70202 states. [2021-11-21 01:46:09,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70202 to 70186. [2021-11-21 01:46:09,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70186 states, 44562 states have (on average 1.3201382343700911) internal successors, (58828), 45569 states have internal predecessors, (58828), 22734 states have call successors, (22734), 2905 states have call predecessors, (22734), 2888 states have return successors, (22841), 22508 states have call predecessors, (22841), 22734 states have call successors, (22841) [2021-11-21 01:46:10,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70186 states to 70186 states and 104403 transitions. [2021-11-21 01:46:10,142 INFO L78 Accepts]: Start accepts. Automaton has 70186 states and 104403 transitions. Word has length 503 [2021-11-21 01:46:10,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:46:10,144 INFO L470 AbstractCegarLoop]: Abstraction has 70186 states and 104403 transitions. [2021-11-21 01:46:10,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (54), 4 states have call predecessors, (54), 3 states have call successors, (54) [2021-11-21 01:46:10,144 INFO L276 IsEmpty]: Start isEmpty. Operand 70186 states and 104403 transitions. [2021-11-21 01:46:10,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2021-11-21 01:46:10,155 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:46:10,156 INFO L514 BasicCegarLoop]: trace histogram [33, 23, 23, 23, 23, 23, 23, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2021-11-21 01:46:10,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 01:46:10,156 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:46:10,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:46:10,157 INFO L85 PathProgramCache]: Analyzing trace with hash -659580101, now seen corresponding path program 1 times [2021-11-21 01:46:10,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:46:10,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9389342] [2021-11-21 01:46:10,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:46:10,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:46:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:46:12,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2887 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2887 trivial. 0 not checked. [2021-11-21 01:46:12,220 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:46:12,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9389342] [2021-11-21 01:46:12,221 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9389342] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:46:12,221 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:46:12,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:46:12,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920701971] [2021-11-21 01:46:12,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:46:12,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:46:12,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:46:12,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:46:12,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:46:12,224 INFO L87 Difference]: Start difference. First operand 70186 states and 104403 transitions. Second operand has 6 states, 5 states have (on average 25.6) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (53), 3 states have call predecessors, (53), 2 states have call successors, (53)