./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba --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 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 02:39:46,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:39:46,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:39:46,379 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:39:46,380 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:39:46,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:39:46,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:39:46,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:39:46,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:39:46,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:39:46,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:39:46,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:39:46,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:39:46,392 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:39:46,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:39:46,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:39:46,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:39:46,397 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:39:46,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:39:46,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:39:46,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:39:46,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:39:46,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:39:46,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:39:46,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:39:46,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:39:46,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:39:46,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:39:46,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:39:46,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:39:46,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:39:46,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:39:46,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:39:46,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:39:46,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:39:46,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:39:46,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:39:46,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:39:46,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:39:46,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:39:46,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:39:46,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:39:46,453 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:39:46,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:39:46,454 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:39:46,454 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:39:46,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:39:46,455 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:39:46,455 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:39:46,456 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:39:46,456 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:39:46,456 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:39:46,457 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:39:46,457 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:39:46,457 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:39:46,458 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:39:46,458 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:39:46,458 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:39:46,459 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:39:46,459 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:39:46,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:39:46,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:39:46,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:39:46,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:39:46,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:39:46,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:39:46,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:39:46,462 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:39:46,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:39:46,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:39:46,463 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:39:46,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:39:46,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:39:46,464 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:39:46,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:39:46,465 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:39:46,465 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:39:46,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:39:46,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:39:46,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:39:46,483 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 [2022-11-22 02:39:46,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:39:46,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:39:46,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:39:46,800 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:39:46,801 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:39:46,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-22 02:39:49,901 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:39:50,674 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:39:50,675 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-22 02:39:50,743 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/data/eda74edcf/898b8c3a67d64deea123b75b26d7d4d4/FLAGf7cff163c [2022-11-22 02:39:50,766 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/data/eda74edcf/898b8c3a67d64deea123b75b26d7d4d4 [2022-11-22 02:39:50,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:39:50,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:39:50,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:39:50,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:39:50,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:39:50,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:39:50" (1/1) ... [2022-11-22 02:39:50,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da83bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:50, skipping insertion in model container [2022-11-22 02:39:50,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:39:50" (1/1) ... [2022-11-22 02:39:50,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:39:51,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:39:56,061 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2022-11-22 02:39:56,068 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2022-11-22 02:39:56,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:39:56,215 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:39:56,771 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2022-11-22 02:39:56,772 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2022-11-22 02:39:56,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:39:57,150 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:39:57,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:57 WrapperNode [2022-11-22 02:39:57,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:39:57,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:39:57,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:39:57,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:39:57,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:57" (1/1) ... [2022-11-22 02:39:57,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:57" (1/1) ... [2022-11-22 02:39:57,820 INFO L138 Inliner]: procedures = 574, calls = 6348, calls flagged for inlining = 279, calls inlined = 246, statements flattened = 12126 [2022-11-22 02:39:57,821 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:39:57,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:39:57,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:39:57,822 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:39:57,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:57" (1/1) ... [2022-11-22 02:39:57,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:57" (1/1) ... [2022-11-22 02:39:57,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:57" (1/1) ... [2022-11-22 02:39:57,925 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:57" (1/1) ... [2022-11-22 02:39:58,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:57" (1/1) ... [2022-11-22 02:39:58,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:57" (1/1) ... [2022-11-22 02:39:58,547 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:57" (1/1) ... [2022-11-22 02:39:58,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:57" (1/1) ... [2022-11-22 02:39:58,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:39:58,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:39:58,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:39:58,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:39:58,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:57" (1/1) ... [2022-11-22 02:39:58,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:39:58,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:39:58,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:39:58,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:39:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 02:39:58,748 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 02:39:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 02:39:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 02:39:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 02:39:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 02:39:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2022-11-22 02:39:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2022-11-22 02:39:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:39:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:39:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2022-11-22 02:39:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2022-11-22 02:39:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-22 02:39:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-22 02:39:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 02:39:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 02:39:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-22 02:39:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-22 02:39:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 02:39:58,751 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 02:39:58,751 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2022-11-22 02:39:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2022-11-22 02:39:58,752 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2022-11-22 02:39:58,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2022-11-22 02:39:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2022-11-22 02:39:58,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2022-11-22 02:39:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2022-11-22 02:39:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2022-11-22 02:39:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 02:39:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 02:39:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2022-11-22 02:39:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2022-11-22 02:39:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2022-11-22 02:39:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2022-11-22 02:39:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 02:39:58,755 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 02:39:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 02:39:58,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 02:39:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 02:39:58,755 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 02:39:58,755 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 02:39:58,756 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 02:39:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2022-11-22 02:39:58,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2022-11-22 02:39:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 02:39:58,756 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 02:39:58,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 02:39:58,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 02:39:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:39:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 02:39:58,757 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 02:39:58,757 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2022-11-22 02:39:58,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2022-11-22 02:39:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 02:39:58,758 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 02:39:58,758 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2022-11-22 02:39:58,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2022-11-22 02:39:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 02:39:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 02:39:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:39:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2022-11-22 02:39:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2022-11-22 02:39:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2022-11-22 02:39:58,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2022-11-22 02:39:58,759 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 02:39:58,760 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 02:39:58,760 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2022-11-22 02:39:58,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2022-11-22 02:39:58,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:39:58,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 02:39:58,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 02:39:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2022-11-22 02:39:58,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2022-11-22 02:39:58,761 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2022-11-22 02:39:58,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2022-11-22 02:39:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:39:58,762 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2022-11-22 02:39:58,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2022-11-22 02:39:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 02:39:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 02:39:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-22 02:39:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-22 02:39:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:39:58,763 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:39:58,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 02:39:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 02:39:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 02:39:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 02:39:58,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 02:39:58,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 02:39:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 02:39:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 02:39:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 02:39:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 02:39:58,765 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2022-11-22 02:39:58,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2022-11-22 02:39:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-22 02:39:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-22 02:39:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 02:39:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 02:39:58,766 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2022-11-22 02:39:58,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2022-11-22 02:39:58,767 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2022-11-22 02:39:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2022-11-22 02:39:58,767 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2022-11-22 02:39:58,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2022-11-22 02:39:58,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:39:58,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 02:39:58,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 02:39:58,771 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-22 02:39:58,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-22 02:39:58,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:39:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 02:39:58,773 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 02:39:58,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 02:39:58,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 02:39:58,775 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 02:39:58,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 02:39:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:39:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:39:58,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:39:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2022-11-22 02:39:58,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2022-11-22 02:39:58,780 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2022-11-22 02:39:58,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2022-11-22 02:39:58,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:39:58,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 02:39:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-22 02:39:58,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-22 02:39:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-22 02:39:58,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-22 02:39:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2022-11-22 02:39:58,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2022-11-22 02:39:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 02:39:58,782 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 02:39:58,782 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2022-11-22 02:39:58,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2022-11-22 02:39:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2022-11-22 02:39:58,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2022-11-22 02:39:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2022-11-22 02:39:58,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2022-11-22 02:39:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-22 02:39:58,783 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-22 02:39:58,783 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 02:39:58,784 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 02:39:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 02:39:58,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 02:39:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2022-11-22 02:39:58,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2022-11-22 02:39:58,784 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2022-11-22 02:39:58,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2022-11-22 02:39:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2022-11-22 02:39:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2022-11-22 02:39:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 02:39:58,785 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 02:39:58,785 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 02:39:58,786 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 02:39:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2022-11-22 02:39:58,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2022-11-22 02:39:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:39:58,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:39:58,786 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-22 02:39:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-22 02:39:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 02:39:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 02:39:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:39:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:39:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:39:58,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:39:58,787 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 02:39:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 02:39:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 02:39:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 02:39:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-22 02:39:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-22 02:39:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2022-11-22 02:39:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2022-11-22 02:39:58,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 02:39:58,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 02:39:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2022-11-22 02:39:58,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2022-11-22 02:39:58,789 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-22 02:39:58,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-22 02:39:58,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 02:39:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 02:39:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 02:39:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 02:39:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-22 02:39:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-22 02:39:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2022-11-22 02:39:58,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2022-11-22 02:39:58,791 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-22 02:39:58,792 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-22 02:39:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-22 02:39:58,792 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-22 02:39:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 02:39:58,792 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 02:39:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-22 02:39:58,792 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-22 02:39:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:39:58,792 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-22 02:39:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-22 02:39:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 02:39:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 02:39:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:39:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-22 02:39:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-22 02:39:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:39:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 02:39:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-22 02:39:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-22 02:39:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-22 02:39:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 02:39:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 02:39:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 02:39:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 02:39:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 02:39:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 02:39:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2022-11-22 02:39:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2022-11-22 02:39:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2022-11-22 02:39:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2022-11-22 02:39:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 02:39:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 02:39:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-22 02:39:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-22 02:39:58,795 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-22 02:39:58,795 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-22 02:39:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 02:39:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 02:39:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-22 02:39:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-22 02:39:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 02:39:58,796 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 02:39:58,796 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2022-11-22 02:39:58,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2022-11-22 02:39:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 02:39:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 02:39:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 02:39:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 02:39:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:39:58,801 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2022-11-22 02:39:58,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2022-11-22 02:39:58,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 02:39:58,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 02:39:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2022-11-22 02:39:58,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2022-11-22 02:39:58,803 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 02:39:58,803 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 02:39:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2022-11-22 02:39:58,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2022-11-22 02:39:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-22 02:39:58,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-22 02:39:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-22 02:39:58,804 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-22 02:39:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2022-11-22 02:39:58,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2022-11-22 02:39:58,804 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-22 02:39:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-22 02:39:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-22 02:39:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-22 02:39:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2022-11-22 02:39:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2022-11-22 02:39:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2022-11-22 02:39:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2022-11-22 02:39:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2022-11-22 02:39:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2022-11-22 02:39:58,805 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2022-11-22 02:39:58,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2022-11-22 02:39:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2022-11-22 02:39:58,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2022-11-22 02:39:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 02:39:58,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 02:39:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-22 02:39:58,806 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-22 02:39:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 02:39:58,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 02:39:58,806 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-22 02:39:58,806 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-22 02:39:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 02:39:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 02:39:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:39:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 02:39:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 02:39:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-22 02:39:58,807 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2022-11-22 02:39:58,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2022-11-22 02:40:00,268 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:40:00,272 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:40:00,655 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:40:31,718 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:40:34,555 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:40:34,555 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 02:40:34,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:40:34 BoogieIcfgContainer [2022-11-22 02:40:34,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:40:34,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:40:34,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:40:34,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:40:34,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:39:50" (1/3) ... [2022-11-22 02:40:34,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c84fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:40:34, skipping insertion in model container [2022-11-22 02:40:34,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:39:57" (2/3) ... [2022-11-22 02:40:34,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c84fbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:40:34, skipping insertion in model container [2022-11-22 02:40:34,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:40:34" (3/3) ... [2022-11-22 02:40:34,575 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-22 02:40:34,597 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:40:34,597 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 02:40:34,715 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:40:34,723 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6ae3af8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:40:34,723 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 02:40:34,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 2367 states, 1339 states have (on average 1.2195668409260643) internal successors, (1633), 1383 states have internal predecessors, (1633), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) [2022-11-22 02:40:34,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-22 02:40:34,876 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:40:34,878 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:40:34,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:40:34,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:40:34,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1723827546, now seen corresponding path program 1 times [2022-11-22 02:40:34,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:40:34,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835549060] [2022-11-22 02:40:34,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:40:34,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:40:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:40:44,860 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-22 02:40:44,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:40:44,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835549060] [2022-11-22 02:40:44,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835549060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:40:44,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:40:44,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:40:44,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991516327] [2022-11-22 02:40:44,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:40:44,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:40:44,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:40:44,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:40:44,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:40:44,925 INFO L87 Difference]: Start difference. First operand has 2367 states, 1339 states have (on average 1.2195668409260643) internal successors, (1633), 1383 states have internal predecessors, (1633), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-22 02:40:48,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:41:00,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:41:12,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:41:15,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:41:18,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:41:18,066 INFO L93 Difference]: Finished difference Result 7034 states and 10267 transitions. [2022-11-22 02:41:18,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:41:18,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 130 [2022-11-22 02:41:18,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:41:18,141 INFO L225 Difference]: With dead ends: 7034 [2022-11-22 02:41:18,141 INFO L226 Difference]: Without dead ends: 4596 [2022-11-22 02:41:18,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:41:18,169 INFO L413 NwaCegarLoop]: 3988 mSDtfsCounter, 3304 mSDsluCounter, 13164 mSDsCounter, 0 mSdLazyCounter, 3899 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3306 SdHoareTripleChecker+Valid, 17152 SdHoareTripleChecker+Invalid, 3902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3899 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:41:18,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3306 Valid, 17152 Invalid, 3902 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 3899 Invalid, 2 Unknown, 0 Unchecked, 31.8s Time] [2022-11-22 02:41:18,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-11-22 02:41:18,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4588. [2022-11-22 02:41:19,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4588 states, 2617 states have (on average 1.211692777990065) internal successors, (3171), 2696 states have internal predecessors, (3171), 1705 states have call successors, (1705), 264 states have call predecessors, (1705), 264 states have return successors, (1705), 1677 states have call predecessors, (1705), 1705 states have call successors, (1705) [2022-11-22 02:41:19,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 6581 transitions. [2022-11-22 02:41:19,052 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 6581 transitions. Word has length 130 [2022-11-22 02:41:19,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:41:19,053 INFO L495 AbstractCegarLoop]: Abstraction has 4588 states and 6581 transitions. [2022-11-22 02:41:19,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-22 02:41:19,054 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 6581 transitions. [2022-11-22 02:41:19,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-22 02:41:19,060 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:41:19,060 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-22 02:41:19,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:41:19,061 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:41:19,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:41:19,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1153200541, now seen corresponding path program 1 times [2022-11-22 02:41:19,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:41:19,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469601913] [2022-11-22 02:41:19,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:41:19,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:41:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:41:26,444 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-11-22 02:41:26,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:41:26,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469601913] [2022-11-22 02:41:26,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469601913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:41:26,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:41:26,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:41:26,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044345697] [2022-11-22 02:41:26,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:41:26,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:41:26,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:41:26,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:41:26,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:41:26,447 INFO L87 Difference]: Start difference. First operand 4588 states and 6581 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 02:41:30,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:41:42,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:41:54,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:41:57,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:41:57,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:41:57,853 INFO L93 Difference]: Finished difference Result 4592 states and 6584 transitions. [2022-11-22 02:41:57,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 02:41:57,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 151 [2022-11-22 02:41:57,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:41:57,892 INFO L225 Difference]: With dead ends: 4592 [2022-11-22 02:41:57,893 INFO L226 Difference]: Without dead ends: 4590 [2022-11-22 02:41:57,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:41:57,902 INFO L413 NwaCegarLoop]: 3932 mSDtfsCounter, 3221 mSDsluCounter, 12988 mSDsCounter, 0 mSdLazyCounter, 3803 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3225 SdHoareTripleChecker+Valid, 16920 SdHoareTripleChecker+Invalid, 3806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3803 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:41:57,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3225 Valid, 16920 Invalid, 3806 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3803 Invalid, 2 Unknown, 0 Unchecked, 30.2s Time] [2022-11-22 02:41:57,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4590 states. [2022-11-22 02:41:58,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4590 to 4588. [2022-11-22 02:41:58,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4588 states, 2617 states have (on average 1.211310661062285) internal successors, (3170), 2696 states have internal predecessors, (3170), 1705 states have call successors, (1705), 264 states have call predecessors, (1705), 264 states have return successors, (1705), 1677 states have call predecessors, (1705), 1705 states have call successors, (1705) [2022-11-22 02:41:58,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 6580 transitions. [2022-11-22 02:41:58,737 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 6580 transitions. Word has length 151 [2022-11-22 02:41:58,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:41:58,738 INFO L495 AbstractCegarLoop]: Abstraction has 4588 states and 6580 transitions. [2022-11-22 02:41:58,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-22 02:41:58,739 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 6580 transitions. [2022-11-22 02:41:58,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-11-22 02:41:58,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:41:58,762 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 8, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:41:58,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:41:58,762 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:41:58,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:41:58,772 INFO L85 PathProgramCache]: Analyzing trace with hash 333259199, now seen corresponding path program 1 times [2022-11-22 02:41:58,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:41:58,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781264205] [2022-11-22 02:41:58,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:41:58,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:41:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:00,848 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-11-22 02:42:00,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:00,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781264205] [2022-11-22 02:42:00,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781264205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:00,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:00,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:42:00,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138490342] [2022-11-22 02:42:00,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:00,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:42:00,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:00,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:42:00,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:42:00,852 INFO L87 Difference]: Start difference. First operand 4588 states and 6580 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-22 02:42:04,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:42:10,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:42:16,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:42:16,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:42:16,672 INFO L93 Difference]: Finished difference Result 10464 states and 15193 transitions. [2022-11-22 02:42:16,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:42:16,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 380 [2022-11-22 02:42:16,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:42:16,712 INFO L225 Difference]: With dead ends: 10464 [2022-11-22 02:42:16,712 INFO L226 Difference]: Without dead ends: 5890 [2022-11-22 02:42:16,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:42:16,745 INFO L413 NwaCegarLoop]: 3524 mSDtfsCounter, 523 mSDsluCounter, 3051 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 6575 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:42:16,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [773 Valid, 6575 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 885 Invalid, 2 Unknown, 0 Unchecked, 14.9s Time] [2022-11-22 02:42:16,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5890 states. [2022-11-22 02:42:17,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5890 to 4590. [2022-11-22 02:42:17,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4590 states, 2619 states have (on average 1.2111492936235204) internal successors, (3172), 2698 states have internal predecessors, (3172), 1705 states have call successors, (1705), 264 states have call predecessors, (1705), 264 states have return successors, (1705), 1677 states have call predecessors, (1705), 1705 states have call successors, (1705) [2022-11-22 02:42:17,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 6582 transitions. [2022-11-22 02:42:17,725 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 6582 transitions. Word has length 380 [2022-11-22 02:42:17,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:42:17,726 INFO L495 AbstractCegarLoop]: Abstraction has 4590 states and 6582 transitions. [2022-11-22 02:42:17,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2022-11-22 02:42:17,728 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 6582 transitions. [2022-11-22 02:42:17,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-11-22 02:42:17,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:42:17,744 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 9, 8, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:42:17,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:42:17,744 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:42:17,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:42:17,745 INFO L85 PathProgramCache]: Analyzing trace with hash 2112476523, now seen corresponding path program 1 times [2022-11-22 02:42:17,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:42:17,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700359237] [2022-11-22 02:42:17,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:42:17,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:42:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:42:33,490 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2022-11-22 02:42:33,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:42:33,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700359237] [2022-11-22 02:42:33,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700359237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:42:33,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:42:33,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 02:42:33,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432975118] [2022-11-22 02:42:33,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:42:33,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 02:42:33,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:42:33,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 02:42:33,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-22 02:42:33,494 INFO L87 Difference]: Start difference. First operand 4590 states and 6582 transitions. Second operand has 8 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 3 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (65), 4 states have call predecessors, (65), 3 states have call successors, (65) [2022-11-22 02:42:37,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:42:51,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:42:53,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:42:55,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:42:57,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:43:06,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:43:15,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:43:17,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:43:19,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:43:20,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:43:22,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:43:24,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:43:31,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:43:33,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:43:33,263 INFO L93 Difference]: Finished difference Result 7239 states and 10424 transitions. [2022-11-22 02:43:33,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 02:43:33,264 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 3 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (65), 4 states have call predecessors, (65), 3 states have call successors, (65) Word has length 382 [2022-11-22 02:43:33,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:43:33,308 INFO L225 Difference]: With dead ends: 7239 [2022-11-22 02:43:33,309 INFO L226 Difference]: Without dead ends: 7237 [2022-11-22 02:43:33,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:43:33,315 INFO L413 NwaCegarLoop]: 3719 mSDtfsCounter, 5229 mSDsluCounter, 14467 mSDsCounter, 0 mSdLazyCounter, 6934 mSolverCounterSat, 2219 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5233 SdHoareTripleChecker+Valid, 18186 SdHoareTripleChecker+Invalid, 9163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2219 IncrementalHoareTripleChecker+Valid, 6934 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:43:33,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5233 Valid, 18186 Invalid, 9163 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2219 Valid, 6934 Invalid, 10 Unknown, 0 Unchecked, 57.7s Time] [2022-11-22 02:43:33,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7237 states. [2022-11-22 02:43:34,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7237 to 6890. [2022-11-22 02:43:34,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6890 states, 3932 states have (on average 1.2115971515768056) internal successors, (4764), 4051 states have internal predecessors, (4764), 2560 states have call successors, (2560), 396 states have call predecessors, (2560), 396 states have return successors, (2560), 2518 states have call predecessors, (2560), 2560 states have call successors, (2560) [2022-11-22 02:43:34,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6890 states to 6890 states and 9884 transitions. [2022-11-22 02:43:34,668 INFO L78 Accepts]: Start accepts. Automaton has 6890 states and 9884 transitions. Word has length 382 [2022-11-22 02:43:34,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:43:34,670 INFO L495 AbstractCegarLoop]: Abstraction has 6890 states and 9884 transitions. [2022-11-22 02:43:34,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 23.0) internal successors, (161), 7 states have internal predecessors, (161), 3 states have call successors, (67), 2 states have call predecessors, (67), 2 states have return successors, (65), 4 states have call predecessors, (65), 3 states have call successors, (65) [2022-11-22 02:43:34,670 INFO L276 IsEmpty]: Start isEmpty. Operand 6890 states and 9884 transitions. [2022-11-22 02:43:34,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-11-22 02:43:34,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:43:34,688 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 10, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:43:34,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:43:34,688 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:43:34,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:43:34,689 INFO L85 PathProgramCache]: Analyzing trace with hash -1617788541, now seen corresponding path program 1 times [2022-11-22 02:43:34,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:43:34,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979892626] [2022-11-22 02:43:34,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:43:34,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:43:36,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:43:50,846 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2022-11-22 02:43:50,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:43:50,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979892626] [2022-11-22 02:43:50,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979892626] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:43:50,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84716753] [2022-11-22 02:43:50,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:43:50,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:43:50,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:43:50,853 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:43:50,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:43:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:43:55,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 13658 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-22 02:43:55,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:44:47,721 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2022-11-22 02:44:47,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:44:47,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84716753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:44:47,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:44:47,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-22 02:44:47,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161133052] [2022-11-22 02:44:47,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:44:47,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 02:44:47,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:44:47,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 02:44:47,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-22 02:44:47,725 INFO L87 Difference]: Start difference. First operand 6890 states and 9884 transitions. Second operand has 7 states, 6 states have (on average 28.333333333333332) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (67), 1 states have call predecessors, (67), 2 states have return successors, (64), 2 states have call predecessors, (64), 1 states have call successors, (64) [2022-11-22 02:44:52,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:44:54,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:44:56,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:04,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:13,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:15,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:17,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:29,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:33,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:35,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:42,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:45:44,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:45:44,798 INFO L93 Difference]: Finished difference Result 6897 states and 9896 transitions. [2022-11-22 02:45:44,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 02:45:44,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.333333333333332) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (67), 1 states have call predecessors, (67), 2 states have return successors, (64), 2 states have call predecessors, (64), 1 states have call successors, (64) Word has length 392 [2022-11-22 02:45:44,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:45:44,844 INFO L225 Difference]: With dead ends: 6897 [2022-11-22 02:45:44,845 INFO L226 Difference]: Without dead ends: 6895 [2022-11-22 02:45:44,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-11-22 02:45:44,851 INFO L413 NwaCegarLoop]: 3672 mSDtfsCounter, 3073 mSDsluCounter, 12506 mSDsCounter, 0 mSdLazyCounter, 6067 mSolverCounterSat, 102 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 53.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3184 SdHoareTripleChecker+Valid, 16178 SdHoareTripleChecker+Invalid, 6176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 6067 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 54.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:45:44,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3184 Valid, 16178 Invalid, 6176 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [102 Valid, 6067 Invalid, 7 Unknown, 0 Unchecked, 54.9s Time] [2022-11-22 02:45:44,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6895 states. [2022-11-22 02:45:46,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6895 to 6890. [2022-11-22 02:45:46,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6890 states, 3932 states have (on average 1.2113428280773144) internal successors, (4763), 4051 states have internal predecessors, (4763), 2560 states have call successors, (2560), 396 states have call predecessors, (2560), 396 states have return successors, (2560), 2518 states have call predecessors, (2560), 2560 states have call successors, (2560) [2022-11-22 02:45:46,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6890 states to 6890 states and 9883 transitions. [2022-11-22 02:45:46,175 INFO L78 Accepts]: Start accepts. Automaton has 6890 states and 9883 transitions. Word has length 392 [2022-11-22 02:45:46,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:45:46,176 INFO L495 AbstractCegarLoop]: Abstraction has 6890 states and 9883 transitions. [2022-11-22 02:45:46,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.333333333333332) internal successors, (170), 5 states have internal predecessors, (170), 1 states have call successors, (67), 1 states have call predecessors, (67), 2 states have return successors, (64), 2 states have call predecessors, (64), 1 states have call successors, (64) [2022-11-22 02:45:46,177 INFO L276 IsEmpty]: Start isEmpty. Operand 6890 states and 9883 transitions. [2022-11-22 02:45:46,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2022-11-22 02:45:46,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:45:46,226 INFO L195 NwaCegarLoop]: trace histogram [45, 13, 13, 10, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:45:46,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:45:46,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7bb8c7d-ad98-40f0-b337-54ea9f8043ff/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:45:46,451 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:45:46,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:45:46,452 INFO L85 PathProgramCache]: Analyzing trace with hash -2026681667, now seen corresponding path program 1 times [2022-11-22 02:45:46,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:45:46,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280523682] [2022-11-22 02:45:46,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:45:46,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms