./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 5e519f3a 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_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/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_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI --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-5e519f3 [2022-11-03 03:47:41,424 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:47:41,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:47:41,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:47:41,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:47:41,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:47:41,487 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:47:41,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:47:41,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:47:41,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:47:41,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:47:41,498 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:47:41,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:47:41,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:47:41,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:47:41,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:47:41,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:47:41,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:47:41,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:47:41,507 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:47:41,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:47:41,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:47:41,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:47:41,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:47:41,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:47:41,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:47:41,517 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:47:41,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:47:41,518 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:47:41,519 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:47:41,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:47:41,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:47:41,522 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:47:41,523 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:47:41,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:47:41,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:47:41,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:47:41,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:47:41,525 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:47:41,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:47:41,527 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:47:41,530 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:47:41,570 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:47:41,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:47:41,571 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:47:41,572 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:47:41,573 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:47:41,573 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:47:41,573 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:47:41,573 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:47:41,574 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:47:41,574 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:47:41,575 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:47:41,575 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:47:41,576 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:47:41,576 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:47:41,576 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:47:41,576 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:47:41,577 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:47:41,577 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:47:41,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:47:41,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:47:41,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:47:41,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:47:41,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:47:41,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:47:41,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:47:41,579 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:47:41,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:47:41,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:47:41,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:47:41,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:47:41,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:47:41,581 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:47:41,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:47:41,582 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:47:41,582 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:47:41,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:47:41,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:47:41,582 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:47:41,583 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_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 [2022-11-03 03:47:41,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:47:41,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:47:41,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:47:41,945 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:47:41,946 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:47:41,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-03 03:47:42,058 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/data/4f80abfa7/9c2eb65895444efdb61f03a4311ac599/FLAG4f0736159 [2022-11-03 03:47:43,355 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:47:43,357 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-03 03:47:43,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/data/4f80abfa7/9c2eb65895444efdb61f03a4311ac599/FLAG4f0736159 [2022-11-03 03:47:43,499 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/data/4f80abfa7/9c2eb65895444efdb61f03a4311ac599 [2022-11-03 03:47:43,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:47:43,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:47:43,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:47:43,508 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:47:43,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:47:43,514 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:43" (1/1) ... [2022-11-03 03:47:43,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b354139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:43, skipping insertion in model container [2022-11-03 03:47:43,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:47:43" (1/1) ... [2022-11-03 03:47:43,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:47:43,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:47:49,046 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2022-11-03 03:47:49,050 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2022-11-03 03:47:49,083 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:47:49,188 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:47:49,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2022-11-03 03:47:49,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2022-11-03 03:47:49,824 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:47:50,152 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:47:50,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:50 WrapperNode [2022-11-03 03:47:50,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:47:50,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:47:50,155 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:47:50,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:47:50,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:50" (1/1) ... [2022-11-03 03:47:50,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:50" (1/1) ... [2022-11-03 03:47:50,778 INFO L138 Inliner]: procedures = 574, calls = 6348, calls flagged for inlining = 279, calls inlined = 246, statements flattened = 12134 [2022-11-03 03:47:50,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:47:50,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:47:50,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:47:50,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:47:50,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:50" (1/1) ... [2022-11-03 03:47:50,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:50" (1/1) ... [2022-11-03 03:47:50,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:50" (1/1) ... [2022-11-03 03:47:50,905 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:50" (1/1) ... [2022-11-03 03:47:51,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:50" (1/1) ... [2022-11-03 03:47:51,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:50" (1/1) ... [2022-11-03 03:47:51,297 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:50" (1/1) ... [2022-11-03 03:47:51,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:50" (1/1) ... [2022-11-03 03:47:51,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:47:51,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:47:51,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:47:51,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:47:51,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:50" (1/1) ... [2022-11-03 03:47:51,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:47:51,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:47:51,403 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:47:51,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:47:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 03:47:51,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 03:47:51,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:47:51,527 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:47:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 03:47:51,527 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 03:47:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2022-11-03 03:47:51,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2022-11-03 03:47:51,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:47:51,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:47:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2022-11-03 03:47:51,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2022-11-03 03:47:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-03 03:47:51,528 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-03 03:47:51,528 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 03:47:51,528 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 03:47:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-03 03:47:51,529 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-03 03:47:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-03 03:47:51,529 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-03 03:47:51,529 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2022-11-03 03:47:51,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2022-11-03 03:47:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2022-11-03 03:47:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2022-11-03 03:47:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2022-11-03 03:47:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2022-11-03 03:47:51,530 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2022-11-03 03:47:51,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2022-11-03 03:47:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 03:47:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 03:47:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2022-11-03 03:47:51,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2022-11-03 03:47:51,531 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2022-11-03 03:47:51,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2022-11-03 03:47:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 03:47:51,532 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 03:47:51,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:47:51,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:47:51,533 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 03:47:51,533 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 03:47:51,533 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 03:47:51,534 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 03:47:51,534 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2022-11-03 03:47:51,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2022-11-03 03:47:51,534 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:47:51,535 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:47:51,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:47:51,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:47:51,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:47:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-03 03:47:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-03 03:47:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2022-11-03 03:47:51,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2022-11-03 03:47:51,537 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 03:47:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 03:47:51,538 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2022-11-03 03:47:51,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2022-11-03 03:47:51,539 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:47:51,539 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:47:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:47:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2022-11-03 03:47:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2022-11-03 03:47:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2022-11-03 03:47:51,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2022-11-03 03:47:51,540 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 03:47:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 03:47:51,541 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2022-11-03 03:47:51,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2022-11-03 03:47:51,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:47:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:47:51,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:47:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2022-11-03 03:47:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2022-11-03 03:47:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2022-11-03 03:47:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2022-11-03 03:47:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:47:51,543 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2022-11-03 03:47:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2022-11-03 03:47:51,544 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 03:47:51,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 03:47:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 03:47:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 03:47:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:47:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:47:51,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 03:47:51,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 03:47:51,546 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-03 03:47:51,547 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-03 03:47:51,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 03:47:51,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 03:47:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 03:47:51,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 03:47:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 03:47:51,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 03:47:51,548 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2022-11-03 03:47:51,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2022-11-03 03:47:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-03 03:47:51,549 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-03 03:47:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 03:47:51,549 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 03:47:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2022-11-03 03:47:51,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2022-11-03 03:47:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2022-11-03 03:47:51,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2022-11-03 03:47:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2022-11-03 03:47:51,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2022-11-03 03:47:51,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:47:51,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 03:47:51,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 03:47:51,556 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-03 03:47:51,556 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-03 03:47:51,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:47:51,556 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 03:47:51,557 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 03:47:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:47:51,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:47:51,558 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:47:51,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:47:51,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:47:51,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:47:51,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:47:51,566 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2022-11-03 03:47:51,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2022-11-03 03:47:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2022-11-03 03:47:51,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2022-11-03 03:47:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:47:51,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:47:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 03:47:51,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 03:47:51,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 03:47:51,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 03:47:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2022-11-03 03:47:51,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2022-11-03 03:47:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 03:47:51,568 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 03:47:51,568 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2022-11-03 03:47:51,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2022-11-03 03:47:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2022-11-03 03:47:51,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2022-11-03 03:47:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2022-11-03 03:47:51,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2022-11-03 03:47:51,569 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-03 03:47:51,569 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-03 03:47:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 03:47:51,570 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 03:47:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 03:47:51,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 03:47:51,570 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2022-11-03 03:47:51,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2022-11-03 03:47:51,571 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2022-11-03 03:47:51,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2022-11-03 03:47:51,571 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2022-11-03 03:47:51,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2022-11-03 03:47:51,571 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-03 03:47:51,571 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-03 03:47:51,572 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-03 03:47:51,572 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-03 03:47:51,572 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2022-11-03 03:47:51,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2022-11-03 03:47:51,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:47:51,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:47:51,572 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-03 03:47:51,573 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-03 03:47:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 03:47:51,573 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 03:47:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:47:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:47:51,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:47:51,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:47:51,574 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 03:47:51,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-03 03:47:51,574 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 03:47:51,574 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 03:47:51,574 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-03 03:47:51,575 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-03 03:47:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2022-11-03 03:47:51,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2022-11-03 03:47:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 03:47:51,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 03:47:51,575 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2022-11-03 03:47:51,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2022-11-03 03:47:51,576 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-03 03:47:51,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-03 03:47:51,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 03:47:51,578 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 03:47:51,578 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 03:47:51,578 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 03:47:51,578 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-03 03:47:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-03 03:47:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2022-11-03 03:47:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2022-11-03 03:47:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-03 03:47:51,579 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-03 03:47:51,579 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-03 03:47:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-03 03:47:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:47:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:47:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-03 03:47:51,580 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-03 03:47:51,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:47:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-03 03:47:51,581 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-03 03:47:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 03:47:51,581 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 03:47:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:47:51,581 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-03 03:47:51,582 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-03 03:47:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:47:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 03:47:51,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 03:47:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-03 03:47:51,582 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-03 03:47:51,582 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:47:51,583 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:47:51,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:47:51,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:47:51,583 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 03:47:51,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 03:47:51,583 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2022-11-03 03:47:51,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2022-11-03 03:47:51,584 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2022-11-03 03:47:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2022-11-03 03:47:51,584 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-03 03:47:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-03 03:47:51,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-03 03:47:51,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-03 03:47:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 03:47:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 03:47:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:47:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:47:51,585 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-03 03:47:51,585 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-03 03:47:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 03:47:51,586 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 03:47:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2022-11-03 03:47:51,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2022-11-03 03:47:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-03 03:47:51,591 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-03 03:47:51,591 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 03:47:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 03:47:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:47:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2022-11-03 03:47:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2022-11-03 03:47:51,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:47:51,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:47:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2022-11-03 03:47:51,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2022-11-03 03:47:51,593 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-03 03:47:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-03 03:47:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2022-11-03 03:47:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2022-11-03 03:47:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 03:47:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 03:47:51,594 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-03 03:47:51,594 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-03 03:47:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2022-11-03 03:47:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2022-11-03 03:47:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-03 03:47:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-03 03:47:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 03:47:51,595 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 03:47:51,595 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2022-11-03 03:47:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2022-11-03 03:47:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2022-11-03 03:47:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2022-11-03 03:47:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2022-11-03 03:47:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2022-11-03 03:47:51,596 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2022-11-03 03:47:51,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2022-11-03 03:47:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2022-11-03 03:47:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2022-11-03 03:47:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:47:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:47:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-03 03:47:51,597 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-03 03:47:51,597 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 03:47:51,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-03 03:47:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-03 03:47:51,598 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-03 03:47:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-03 03:47:51,598 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-03 03:47:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:47:51,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:47:51,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:47:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-03 03:47:51,599 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2022-11-03 03:47:51,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2022-11-03 03:47:52,961 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:47:52,965 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:47:53,301 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:48:23,837 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:48:26,647 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:48:26,648 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 03:48:26,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:26 BoogieIcfgContainer [2022-11-03 03:48:26,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:48:26,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:48:26,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:48:26,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:48:26,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:47:43" (1/3) ... [2022-11-03 03:48:26,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405c36e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:26, skipping insertion in model container [2022-11-03 03:48:26,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:47:50" (2/3) ... [2022-11-03 03:48:26,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@405c36e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:26, skipping insertion in model container [2022-11-03 03:48:26,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:26" (3/3) ... [2022-11-03 03:48:26,670 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-03 03:48:26,692 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:48:26,692 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-03 03:48:26,816 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:48:26,827 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;@1ed088bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:48:26,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-03 03:48:26,841 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) [2022-11-03 03:48:26,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-03 03:48:26,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:26,880 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] [2022-11-03 03:48:26,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:26,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:26,888 INFO L85 PathProgramCache]: Analyzing trace with hash 2126055841, now seen corresponding path program 1 times [2022-11-03 03:48:26,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:26,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886490609] [2022-11-03 03:48:26,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:26,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:37,407 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-03 03:48:37,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:48:37,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886490609] [2022-11-03 03:48:37,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886490609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:37,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:37,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:48:37,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792349803] [2022-11-03 03:48:37,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:37,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:48:37,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:48:37,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:48:37,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:48:37,471 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) [2022-11-03 03:48:41,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:48:55,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:11,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:14,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:49:14,324 INFO L93 Difference]: Finished difference Result 7034 states and 10267 transitions. [2022-11-03 03:49:14,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:49:14,327 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 [2022-11-03 03:49:14,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:49:14,389 INFO L225 Difference]: With dead ends: 7034 [2022-11-03 03:49:14,389 INFO L226 Difference]: Without dead ends: 4596 [2022-11-03 03:49:14,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:49:14,427 INFO L413 NwaCegarLoop]: 3988 mSDtfsCounter, 3303 mSDsluCounter, 14857 mSDsCounter, 0 mSdLazyCounter, 3899 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3305 SdHoareTripleChecker+Valid, 17152 SdHoareTripleChecker+Invalid, 3903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3899 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:49:14,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3305 Valid, 17152 Invalid, 3903 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 3899 Invalid, 2 Unknown, 0 Unchecked, 35.4s Time] [2022-11-03 03:49:14,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2022-11-03 03:49:15,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 4588. [2022-11-03 03:49:15,376 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) [2022-11-03 03:49:15,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 6581 transitions. [2022-11-03 03:49:15,428 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 6581 transitions. Word has length 130 [2022-11-03 03:49:15,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:49:15,434 INFO L495 AbstractCegarLoop]: Abstraction has 4588 states and 6581 transitions. [2022-11-03 03:49:15,434 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) [2022-11-03 03:49:15,434 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 6581 transitions. [2022-11-03 03:49:15,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-03 03:49:15,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:49:15,453 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] [2022-11-03 03:49:15,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:49:15,454 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:49:15,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:49:15,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1461016049, now seen corresponding path program 1 times [2022-11-03 03:49:15,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:49:15,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117972660] [2022-11-03 03:49:15,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:15,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:49:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:49:24,358 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-11-03 03:49:24,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:49:24,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117972660] [2022-11-03 03:49:24,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117972660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:49:24,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:49:24,359 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:49:24,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351060781] [2022-11-03 03:49:24,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:49:24,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:49:24,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:49:24,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:49:24,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:49:24,362 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) [2022-11-03 03:49:29,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:34,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:44,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:52,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:49:58,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:03,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:04,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:50:04,495 INFO L93 Difference]: Finished difference Result 4592 states and 6584 transitions. [2022-11-03 03:50:04,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:50:04,496 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 [2022-11-03 03:50:04,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:50:04,538 INFO L225 Difference]: With dead ends: 4592 [2022-11-03 03:50:04,538 INFO L226 Difference]: Without dead ends: 4590 [2022-11-03 03:50:04,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:50:04,544 INFO L413 NwaCegarLoop]: 3932 mSDtfsCounter, 3220 mSDsluCounter, 14652 mSDsCounter, 0 mSdLazyCounter, 3802 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 16920 SdHoareTripleChecker+Invalid, 3807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3802 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:50:04,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3224 Valid, 16920 Invalid, 3807 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 3802 Invalid, 3 Unknown, 0 Unchecked, 38.7s Time] [2022-11-03 03:50:04,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4590 states. [2022-11-03 03:50:05,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4590 to 4588. [2022-11-03 03:50:05,416 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) [2022-11-03 03:50:05,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4588 states to 4588 states and 6580 transitions. [2022-11-03 03:50:05,448 INFO L78 Accepts]: Start accepts. Automaton has 4588 states and 6580 transitions. Word has length 151 [2022-11-03 03:50:05,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:50:05,451 INFO L495 AbstractCegarLoop]: Abstraction has 4588 states and 6580 transitions. [2022-11-03 03:50:05,451 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) [2022-11-03 03:50:05,452 INFO L276 IsEmpty]: Start isEmpty. Operand 4588 states and 6580 transitions. [2022-11-03 03:50:05,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-11-03 03:50:05,471 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:50:05,472 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] [2022-11-03 03:50:05,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:50:05,473 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:50:05,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:50:05,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1653388704, now seen corresponding path program 1 times [2022-11-03 03:50:05,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:50:05,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087241753] [2022-11-03 03:50:05,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:50:05,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:50:06,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:50:07,840 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2022-11-03 03:50:07,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:50:07,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087241753] [2022-11-03 03:50:07,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087241753] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:50:07,840 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:50:07,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:50:07,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374154275] [2022-11-03 03:50:07,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:50:07,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:50:07,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:50:07,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:50:07,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:50:07,843 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) [2022-11-03 03:50:15,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:18,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:23,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:50:24,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:50:24,125 INFO L93 Difference]: Finished difference Result 10492 states and 15238 transitions. [2022-11-03 03:50:24,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:50:24,126 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 [2022-11-03 03:50:24,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:50:24,176 INFO L225 Difference]: With dead ends: 10492 [2022-11-03 03:50:24,176 INFO L226 Difference]: Without dead ends: 5918 [2022-11-03 03:50:24,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:50:24,213 INFO L413 NwaCegarLoop]: 3261 mSDtfsCounter, 547 mSDsluCounter, 3354 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 6211 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:50:24,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [808 Valid, 6211 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 839 Invalid, 1 Unknown, 0 Unchecked, 15.3s Time] [2022-11-03 03:50:24,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5918 states. [2022-11-03 03:50:25,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5918 to 4590. [2022-11-03 03:50:25,348 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) [2022-11-03 03:50:25,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4590 states to 4590 states and 6582 transitions. [2022-11-03 03:50:25,377 INFO L78 Accepts]: Start accepts. Automaton has 4590 states and 6582 transitions. Word has length 380 [2022-11-03 03:50:25,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:50:25,381 INFO L495 AbstractCegarLoop]: Abstraction has 4590 states and 6582 transitions. [2022-11-03 03:50:25,382 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) [2022-11-03 03:50:25,383 INFO L276 IsEmpty]: Start isEmpty. Operand 4590 states and 6582 transitions. [2022-11-03 03:50:25,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2022-11-03 03:50:25,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:50:25,398 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] [2022-11-03 03:50:25,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:50:25,398 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:50:25,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:50:25,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1470670338, now seen corresponding path program 1 times [2022-11-03 03:50:25,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:50:25,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399505920] [2022-11-03 03:50:25,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:50:25,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:50:27,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:50:42,971 INFO L134 CoverageAnalysis]: Checked inductivity of 460 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2022-11-03 03:50:42,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:50:42,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399505920] [2022-11-03 03:50:42,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399505920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:50:42,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:50:42,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 03:50:42,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389199019] [2022-11-03 03:50:42,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:50:42,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 03:50:42,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:50:42,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 03:50:42,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-03 03:50:42,975 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) [2022-11-03 03:50:50,878 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 [] [2022-11-03 03:50:59,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:11,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:35,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:38,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:47,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:51:57,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:06,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:17,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:52:17,528 INFO L93 Difference]: Finished difference Result 7101 states and 10209 transitions. [2022-11-03 03:52:17,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-03 03:52:17,529 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 [2022-11-03 03:52:17,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:52:17,581 INFO L225 Difference]: With dead ends: 7101 [2022-11-03 03:52:17,581 INFO L226 Difference]: Without dead ends: 7099 [2022-11-03 03:52:17,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:52:17,588 INFO L413 NwaCegarLoop]: 4727 mSDtfsCounter, 8366 mSDsluCounter, 20284 mSDsCounter, 0 mSdLazyCounter, 11012 mSolverCounterSat, 2160 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 85.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8374 SdHoareTripleChecker+Valid, 22514 SdHoareTripleChecker+Invalid, 13175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2160 IncrementalHoareTripleChecker+Valid, 11012 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 91.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:52:17,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8374 Valid, 22514 Invalid, 13175 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2160 Valid, 11012 Invalid, 3 Unknown, 0 Unchecked, 91.0s Time] [2022-11-03 03:52:17,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7099 states. [2022-11-03 03:52:19,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7099 to 6890. [2022-11-03 03:52:19,191 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) [2022-11-03 03:52:19,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6890 states to 6890 states and 9884 transitions. [2022-11-03 03:52:19,236 INFO L78 Accepts]: Start accepts. Automaton has 6890 states and 9884 transitions. Word has length 382 [2022-11-03 03:52:19,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:52:19,242 INFO L495 AbstractCegarLoop]: Abstraction has 6890 states and 9884 transitions. [2022-11-03 03:52:19,242 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) [2022-11-03 03:52:19,242 INFO L276 IsEmpty]: Start isEmpty. Operand 6890 states and 9884 transitions. [2022-11-03 03:52:19,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-11-03 03:52:19,262 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:52:19,262 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] [2022-11-03 03:52:19,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:52:19,263 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:52:19,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:52:19,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1244659998, now seen corresponding path program 1 times [2022-11-03 03:52:19,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:52:19,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710915460] [2022-11-03 03:52:19,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:19,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:52:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:36,375 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2022-11-03 03:52:36,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:52:36,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710915460] [2022-11-03 03:52:36,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710915460] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:52:36,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610223372] [2022-11-03 03:52:36,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:52:36,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:52:36,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:52:36,381 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:52:36,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:52:40,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:52:40,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 13660 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 03:52:40,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:52:41,005 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-11-03 03:52:41,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:52:41,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610223372] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:52:41,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:52:41,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2022-11-03 03:52:41,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895846891] [2022-11-03 03:52:41,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:52:41,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:52:41,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:52:41,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:52:41,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-03 03:52:41,009 INFO L87 Difference]: Start difference. First operand 6890 states and 9884 transitions. Second operand has 6 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (70), 2 states have call predecessors, (70), 3 states have return successors, (67), 3 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-03 03:52:45,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:48,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:52:54,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:04,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:11,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:12,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:53:12,221 INFO L93 Difference]: Finished difference Result 14045 states and 20194 transitions. [2022-11-03 03:53:12,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:53:12,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (70), 2 states have call predecessors, (70), 3 states have return successors, (67), 3 states have call predecessors, (67), 2 states have call successors, (67) Word has length 392 [2022-11-03 03:53:12,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:53:12,274 INFO L225 Difference]: With dead ends: 14045 [2022-11-03 03:53:12,274 INFO L226 Difference]: Without dead ends: 7169 [2022-11-03 03:53:12,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-11-03 03:53:12,321 INFO L413 NwaCegarLoop]: 3037 mSDtfsCounter, 68 mSDsluCounter, 13722 mSDsCounter, 0 mSdLazyCounter, 2110 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 15097 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2110 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:53:12,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 15097 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2110 Invalid, 3 Unknown, 0 Unchecked, 30.0s Time] [2022-11-03 03:53:12,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7169 states. [2022-11-03 03:53:13,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 6902. [2022-11-03 03:53:13,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6902 states, 3941 states have (on average 1.2118751585891905) internal successors, (4776), 4060 states have internal predecessors, (4776), 2560 states have call successors, (2560), 396 states have call predecessors, (2560), 399 states have return successors, (2566), 2521 states have call predecessors, (2566), 2560 states have call successors, (2566) [2022-11-03 03:53:13,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6902 states to 6902 states and 9902 transitions. [2022-11-03 03:53:13,546 INFO L78 Accepts]: Start accepts. Automaton has 6902 states and 9902 transitions. Word has length 392 [2022-11-03 03:53:13,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:53:13,547 INFO L495 AbstractCegarLoop]: Abstraction has 6902 states and 9902 transitions. [2022-11-03 03:53:13,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (70), 2 states have call predecessors, (70), 3 states have return successors, (67), 3 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-03 03:53:13,548 INFO L276 IsEmpty]: Start isEmpty. Operand 6902 states and 9902 transitions. [2022-11-03 03:53:13,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2022-11-03 03:53:13,575 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:13,575 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 10, 10, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 03:53:13,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:53:13,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:53:13,781 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:53:13,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:13,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1534073517, now seen corresponding path program 1 times [2022-11-03 03:53:13,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:53:13,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214402087] [2022-11-03 03:53:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:13,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:53:14,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:29,110 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1134 trivial. 0 not checked. [2022-11-03 03:53:29,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:53:29,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214402087] [2022-11-03 03:53:29,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214402087] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:53:29,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772983128] [2022-11-03 03:53:29,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:29,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:53:29,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:53:29,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:53:29,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:53:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:53:33,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 14751 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 03:53:33,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:53:33,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 235 proven. 1 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2022-11-03 03:53:33,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:53:35,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1139 trivial. 0 not checked. [2022-11-03 03:53:35,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772983128] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 03:53:35,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:53:35,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8, 4] total 11 [2022-11-03 03:53:35,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370144026] [2022-11-03 03:53:35,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:53:35,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:53:35,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:53:35,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:53:35,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:53:35,101 INFO L87 Difference]: Start difference. First operand 6902 states and 9902 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 3 states have call successors, (102), 2 states have call predecessors, (102), 2 states have return successors, (99), 3 states have call predecessors, (99), 3 states have call successors, (99) [2022-11-03 03:53:38,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:46,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:53:51,176 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 [] [2022-11-03 03:53:51,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:53:51,403 INFO L93 Difference]: Finished difference Result 13814 states and 19923 transitions. [2022-11-03 03:53:51,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:53:51,404 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 3 states have call successors, (102), 2 states have call predecessors, (102), 2 states have return successors, (99), 3 states have call predecessors, (99), 3 states have call successors, (99) Word has length 584 [2022-11-03 03:53:51,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:53:51,440 INFO L225 Difference]: With dead ends: 13814 [2022-11-03 03:53:51,440 INFO L226 Difference]: Without dead ends: 6926 [2022-11-03 03:53:51,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1174 GetRequests, 1165 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:53:51,471 INFO L413 NwaCegarLoop]: 2919 mSDtfsCounter, 4 mSDsluCounter, 3315 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5832 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.2s IncrementalHoareTripleChecker+Time [2022-11-03 03:53:51,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5832 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 811 Invalid, 3 Unknown, 0 Unchecked, 15.2s Time] [2022-11-03 03:53:51,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6926 states. [2022-11-03 03:53:52,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6926 to 6908. [2022-11-03 03:53:52,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6908 states, 3947 states have (on average 1.2123131492272612) internal successors, (4785), 4066 states have internal predecessors, (4785), 2560 states have call successors, (2560), 396 states have call predecessors, (2560), 399 states have return successors, (2566), 2521 states have call predecessors, (2566), 2560 states have call successors, (2566) [2022-11-03 03:53:52,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6908 states to 6908 states and 9911 transitions. [2022-11-03 03:53:52,759 INFO L78 Accepts]: Start accepts. Automaton has 6908 states and 9911 transitions. Word has length 584 [2022-11-03 03:53:52,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:53:52,760 INFO L495 AbstractCegarLoop]: Abstraction has 6908 states and 9911 transitions. [2022-11-03 03:53:52,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 3 states have call successors, (102), 2 states have call predecessors, (102), 2 states have return successors, (99), 3 states have call predecessors, (99), 3 states have call successors, (99) [2022-11-03 03:53:52,761 INFO L276 IsEmpty]: Start isEmpty. Operand 6908 states and 9911 transitions. [2022-11-03 03:53:52,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2022-11-03 03:53:52,777 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:53:52,778 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 13, 13, 10, 10, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 03:53:52,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:53:53,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:53:53,002 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:53:53,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:53:53,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2032396293, now seen corresponding path program 1 times [2022-11-03 03:53:53,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:53:53,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682364392] [2022-11-03 03:53:53,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:53:53,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:53:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:08,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1150 trivial. 0 not checked. [2022-11-03 03:54:08,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:54:08,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682364392] [2022-11-03 03:54:08,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682364392] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:54:08,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392996421] [2022-11-03 03:54:08,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:08,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:08,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:54:08,988 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:54:08,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:54:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:14,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 14833 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-03 03:54:14,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:54:14,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 251 proven. 1 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2022-11-03 03:54:14,307 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:54:15,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1155 trivial. 0 not checked. [2022-11-03 03:54:15,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392996421] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-03 03:54:15,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 03:54:15,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8, 4] total 11 [2022-11-03 03:54:15,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905730065] [2022-11-03 03:54:15,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:54:15,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:54:15,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:54:15,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:54:15,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:54:15,679 INFO L87 Difference]: Start difference. First operand 6908 states and 9911 transitions. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2022-11-03 03:54:18,770 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 [] [2022-11-03 03:54:24,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:28,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:54:32,902 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 [] [2022-11-03 03:54:33,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:54:33,255 INFO L93 Difference]: Finished difference Result 13799 states and 19899 transitions. [2022-11-03 03:54:33,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:54:33,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) Word has length 587 [2022-11-03 03:54:33,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:54:33,290 INFO L225 Difference]: With dead ends: 13799 [2022-11-03 03:54:33,290 INFO L226 Difference]: Without dead ends: 6905 [2022-11-03 03:54:33,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1180 GetRequests, 1171 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:54:33,322 INFO L413 NwaCegarLoop]: 2917 mSDtfsCounter, 1 mSDsluCounter, 3316 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5830 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-03 03:54:33,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5830 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 813 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2022-11-03 03:54:33,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6905 states. [2022-11-03 03:54:34,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6905 to 6905. [2022-11-03 03:54:34,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6905 states, 3944 states have (on average 1.2117139959432048) internal successors, (4779), 4063 states have internal predecessors, (4779), 2560 states have call successors, (2560), 396 states have call predecessors, (2560), 399 states have return successors, (2566), 2521 states have call predecessors, (2566), 2560 states have call successors, (2566) [2022-11-03 03:54:34,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6905 states to 6905 states and 9905 transitions. [2022-11-03 03:54:34,422 INFO L78 Accepts]: Start accepts. Automaton has 6905 states and 9905 transitions. Word has length 587 [2022-11-03 03:54:34,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:54:34,425 INFO L495 AbstractCegarLoop]: Abstraction has 6905 states and 9905 transitions. [2022-11-03 03:54:34,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 2 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2022-11-03 03:54:34,425 INFO L276 IsEmpty]: Start isEmpty. Operand 6905 states and 9905 transitions. [2022-11-03 03:54:34,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2022-11-03 03:54:34,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:54:34,457 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 20, 13, 13, 10, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-03 03:54:34,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 03:54:34,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:34,681 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:54:34,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:54:34,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1891934562, now seen corresponding path program 1 times [2022-11-03 03:54:34,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:54:34,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018674817] [2022-11-03 03:54:34,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:34,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:54:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:51,566 INFO L134 CoverageAnalysis]: Checked inductivity of 3015 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 3010 trivial. 0 not checked. [2022-11-03 03:54:51,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:54:51,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018674817] [2022-11-03 03:54:51,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018674817] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:54:51,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388114168] [2022-11-03 03:54:51,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:54:51,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:54:51,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:54:51,574 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:54:51,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-03 03:54:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:54:56,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 15854 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-03 03:54:56,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:57:55,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3015 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3014 trivial. 0 not checked. [2022-11-03 03:57:55,332 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:57:55,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388114168] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:57:55,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:57:55,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-03 03:57:55,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369068662] [2022-11-03 03:57:55,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:57:55,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:57:55,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:57:55,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:57:55,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:57:55,336 INFO L87 Difference]: Start difference. First operand 6905 states and 9905 transitions. Second operand has 6 states, 5 states have (on average 42.8) internal successors, (214), 4 states have internal predecessors, (214), 1 states have call successors, (103), 1 states have call predecessors, (103), 2 states have return successors, (100), 2 states have call predecessors, (100), 1 states have call successors, (100) [2022-11-03 03:58:00,793 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 [] [2022-11-03 03:58:10,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:15,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:20,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:22,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:25,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:35,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:37,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:39,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:41,906 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 [] [2022-11-03 03:58:47,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:58:47,611 INFO L93 Difference]: Finished difference Result 6912 states and 9917 transitions. [2022-11-03 03:58:47,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 03:58:47,612 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 42.8) internal successors, (214), 4 states have internal predecessors, (214), 1 states have call successors, (103), 1 states have call predecessors, (103), 2 states have return successors, (100), 2 states have call predecessors, (100), 1 states have call successors, (100) Word has length 776 [2022-11-03 03:58:47,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:58:47,651 INFO L225 Difference]: With dead ends: 6912 [2022-11-03 03:58:47,651 INFO L226 Difference]: Without dead ends: 6910 [2022-11-03 03:58:47,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 785 GetRequests, 774 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-03 03:58:47,657 INFO L413 NwaCegarLoop]: 3777 mSDtfsCounter, 2910 mSDsluCounter, 13258 mSDsCounter, 0 mSdLazyCounter, 3755 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2911 SdHoareTripleChecker+Valid, 15419 SdHoareTripleChecker+Invalid, 3763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3755 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:58:47,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2911 Valid, 15419 Invalid, 3763 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3755 Invalid, 7 Unknown, 0 Unchecked, 50.1s Time] [2022-11-03 03:58:47,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6910 states. [2022-11-03 03:58:49,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6910 to 6905. [2022-11-03 03:58:49,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6905 states, 3944 states have (on average 1.2114604462474645) internal successors, (4778), 4063 states have internal predecessors, (4778), 2560 states have call successors, (2560), 396 states have call predecessors, (2560), 399 states have return successors, (2566), 2521 states have call predecessors, (2566), 2560 states have call successors, (2566) [2022-11-03 03:58:49,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6905 states to 6905 states and 9904 transitions. [2022-11-03 03:58:49,071 INFO L78 Accepts]: Start accepts. Automaton has 6905 states and 9904 transitions. Word has length 776 [2022-11-03 03:58:49,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:58:49,072 INFO L495 AbstractCegarLoop]: Abstraction has 6905 states and 9904 transitions. [2022-11-03 03:58:49,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 42.8) internal successors, (214), 4 states have internal predecessors, (214), 1 states have call successors, (103), 1 states have call predecessors, (103), 2 states have return successors, (100), 2 states have call predecessors, (100), 1 states have call successors, (100) [2022-11-03 03:58:49,073 INFO L276 IsEmpty]: Start isEmpty. Operand 6905 states and 9904 transitions. [2022-11-03 03:58:49,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 976 [2022-11-03 03:58:49,117 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:58:49,118 INFO L195 NwaCegarLoop]: trace histogram [75, 31, 20, 13, 13, 10, 8, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:58:49,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-03 03:58:49,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7767f622-c1c8-41e7-87ae-1e313ac5ca62/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:58:49,337 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:58:49,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:58:49,338 INFO L85 PathProgramCache]: Analyzing trace with hash 453172936, now seen corresponding path program 1 times [2022-11-03 03:58:49,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:58:49,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154837721] [2022-11-03 03:58:49,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:58:49,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms