./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0f1a59e3fe28583d669f3a9c734ebc5395c61cae2e7711aea93760782e80de65 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:36:48,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:36:48,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:36:48,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:36:48,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:36:48,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:36:48,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:36:48,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:36:48,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:36:48,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:36:48,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:36:48,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:36:48,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:36:48,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:36:48,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:36:48,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:36:48,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:36:48,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:36:48,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:36:48,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:36:48,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:36:48,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:36:48,380 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:36:48,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:36:48,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:36:48,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:36:48,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:36:48,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:36:48,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:36:48,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:36:48,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:36:48,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:36:48,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:36:48,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:36:48,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:36:48,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:36:48,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:36:48,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:36:48,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:36:48,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:36:48,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:36:48,408 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:36:48,449 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:36:48,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:36:48,450 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:36:48,450 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:36:48,451 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:36:48,452 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:36:48,452 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:36:48,452 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:36:48,452 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:36:48,453 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:36:48,454 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:36:48,454 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:36:48,454 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:36:48,455 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:36:48,455 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:36:48,455 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:36:48,455 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:36:48,456 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:36:48,457 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:36:48,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:36:48,458 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:36:48,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:36:48,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:36:48,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:36:48,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:36:48,459 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:36:48,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:36:48,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:36:48,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:36:48,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:36:48,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:36:48,462 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:36:48,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:36:48,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:36:48,462 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:36:48,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:36:48,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:36:48,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:36:48,463 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_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f1a59e3fe28583d669f3a9c734ebc5395c61cae2e7711aea93760782e80de65 [2022-11-22 01:36:48,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:36:48,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:36:48,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:36:48,806 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:36:48,806 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:36:48,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2022-11-22 01:36:51,789 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:36:52,591 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:36:52,592 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2022-11-22 01:36:52,656 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba/data/802ceeb3e/5f54f8c270ba48db9a54c1019628651a/FLAG37d62e050 [2022-11-22 01:36:52,674 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba/data/802ceeb3e/5f54f8c270ba48db9a54c1019628651a [2022-11-22 01:36:52,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:36:52,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:36:52,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:36:52,683 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:36:52,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:36:52,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273bc66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:52, skipping insertion in model container [2022-11-22 01:36:52,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:36:52" (1/1) ... [2022-11-22 01:36:52,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:36:52,888 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:36:56,422 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2022-11-22 01:36:56,426 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2022-11-22 01:36:56,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:36:56,495 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:36:56,886 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2022-11-22 01:36:56,887 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2022-11-22 01:36:56,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:36:57,414 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:36:57,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:57 WrapperNode [2022-11-22 01:36:57,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:36:57,416 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:36:57,416 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:36:57,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:36:57,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:57" (1/1) ... [2022-11-22 01:36:57,539 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:57" (1/1) ... [2022-11-22 01:36:57,756 INFO L138 Inliner]: procedures = 459, calls = 3897, calls flagged for inlining = 222, calls inlined = 206, statements flattened = 6648 [2022-11-22 01:36:57,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:36:57,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:36:57,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:36:57,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:36:57,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:57" (1/1) ... [2022-11-22 01:36:57,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:57" (1/1) ... [2022-11-22 01:36:57,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:57" (1/1) ... [2022-11-22 01:36:57,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:57" (1/1) ... [2022-11-22 01:36:57,988 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:57" (1/1) ... [2022-11-22 01:36:58,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:57" (1/1) ... [2022-11-22 01:36:58,075 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:57" (1/1) ... [2022-11-22 01:36:58,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:57" (1/1) ... [2022-11-22 01:36:58,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:36:58,147 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:36:58,147 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:36:58,147 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:36:58,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:57" (1/1) ... [2022-11-22 01:36:58,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:36:58,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:36:58,179 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:36:58,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_495991e7-c07b-433f-ace1-d3750d245d66/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:36:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_medium_mode [2022-11-22 01:36:58,312 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_medium_mode [2022-11-22 01:36:58,312 INFO L130 BoogieDeclarations]: Found specification of procedure mii_check_media [2022-11-22 01:36:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_check_media [2022-11-22 01:36:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 01:36:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 01:36:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2022-11-22 01:36:58,313 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2022-11-22 01:36:58,313 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_link [2022-11-22 01:36:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_link [2022-11-22 01:36:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 01:36:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 01:36:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_rx_ctl [2022-11-22 01:36:58,314 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_rx_ctl [2022-11-22 01:36:58,314 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_stop [2022-11-22 01:36:58,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_stop [2022-11-22 01:36:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_set_settings [2022-11-22 01:36:58,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_set_settings [2022-11-22 01:36:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_reset [2022-11-22 01:36:58,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_reset [2022-11-22 01:36:58,315 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-22 01:36:58,316 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-22 01:36:58,316 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_settings [2022-11-22 01:36:58,317 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_settings [2022-11-22 01:36:58,317 INFO L130 BoogieDeclarations]: Found specification of procedure asix_mdio_write [2022-11-22 01:36:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_mdio_write [2022-11-22 01:36:58,318 INFO L130 BoogieDeclarations]: Found specification of procedure asix_status [2022-11-22 01:36:58,318 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_status [2022-11-22 01:36:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_rx_ctl [2022-11-22 01:36:58,319 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_rx_ctl [2022-11-22 01:36:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2022-11-22 01:36:58,319 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2022-11-22 01:36:58,319 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-22 01:36:58,319 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-22 01:36:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_eeprom [2022-11-22 01:36:58,320 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_eeprom [2022-11-22 01:36:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 01:36:58,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 01:36:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 01:36:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 01:36:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 01:36:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 01:36:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-22 01:36:58,321 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-22 01:36:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 01:36:58,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 01:36:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_reset_phy [2022-11-22 01:36:58,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_reset_phy [2022-11-22 01:36:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:36:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_unbind [2022-11-22 01:36:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_unbind [2022-11-22 01:36:58,324 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_link_reset [2022-11-22 01:36:58,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_link_reset [2022-11-22 01:36:58,324 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-22 01:36:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-22 01:36:58,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_asix_driver_exit_10_2 [2022-11-22 01:36:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_asix_driver_exit_10_2 [2022-11-22 01:36:58,325 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_netdev_dev_addr [2022-11-22 01:36:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_netdev_dev_addr [2022-11-22 01:36:58,325 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_bind [2022-11-22 01:36:58,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_bind [2022-11-22 01:36:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 01:36:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-11-22 01:36:58,326 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-11-22 01:36:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:36:58,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 01:36:58,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 01:36:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-11-22 01:36:58,327 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-11-22 01:36:58,327 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_bind [2022-11-22 01:36:58,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_bind [2022-11-22 01:36:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:36:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-22 01:36:58,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-22 01:36:58,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 01:36:58,329 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 01:36:58,329 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_phy_addr [2022-11-22 01:36:58,330 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_phy_addr [2022-11-22 01:36:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 01:36:58,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 01:36:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 01:36:58,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 01:36:58,330 INFO L130 BoogieDeclarations]: Found specification of procedure asix_rx_fixup_internal [2022-11-22 01:36:58,331 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_rx_fixup_internal [2022-11-22 01:36:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:36:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 01:36:58,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 01:36:58,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 01:36:58,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 01:36:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:36:58,332 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 01:36:58,333 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 01:36:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_eeprom_len [2022-11-22 01:36:58,333 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_eeprom_len [2022-11-22 01:36:58,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 01:36:58,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 01:36:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-22 01:36:58,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-22 01:36:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 01:36:58,335 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_wol [2022-11-22 01:36:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_wol [2022-11-22 01:36:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:36:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-22 01:36:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-11-22 01:36:58,336 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-11-22 01:36:58,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-22 01:36:58,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-22 01:36:58,337 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_cmd_async [2022-11-22 01:36:58,338 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_cmd_async [2022-11-22 01:36:58,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-22 01:36:58,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-22 01:36:58,342 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_unbind [2022-11-22 01:36:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_unbind [2022-11-22 01:36:58,343 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_reset [2022-11-22 01:36:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_reset [2022-11-22 01:36:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_link_reset [2022-11-22 01:36:58,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_link_reset [2022-11-22 01:36:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_start_xmit [2022-11-22 01:36:58,350 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_start_xmit [2022-11-22 01:36:58,350 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-22 01:36:58,350 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-22 01:36:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_drvinfo [2022-11-22 01:36:58,351 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_drvinfo [2022-11-22 01:36:58,351 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_hw_mii [2022-11-22 01:36:58,352 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_hw_mii [2022-11-22 01:36:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:36:58,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:36:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 01:36:58,352 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 01:36:58,352 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_msglevel [2022-11-22 01:36:58,352 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_msglevel [2022-11-22 01:36:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-11-22 01:36:58,353 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-11-22 01:36:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 01:36:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:36:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 01:36:58,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 01:36:58,353 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_set_settings [2022-11-22 01:36:58,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_set_settings [2022-11-22 01:36:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_reset [2022-11-22 01:36:58,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_reset [2022-11-22 01:36:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_6_4 [2022-11-22 01:36:58,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_6_4 [2022-11-22 01:36:58,354 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_phyid [2022-11-22 01:36:58,354 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_phyid [2022-11-22 01:36:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-11-22 01:36:58,355 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-11-22 01:36:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-22 01:36:58,355 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-22 01:36:58,355 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-22 01:36:58,355 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-22 01:36:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure asix_tx_fixup [2022-11-22 01:36:58,356 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_tx_fixup [2022-11-22 01:36:58,356 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 01:36:58,357 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 01:36:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 01:36:58,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 01:36:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2022-11-22 01:36:58,357 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2022-11-22 01:36:58,357 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_set_msglevel [2022-11-22 01:36:58,357 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_set_msglevel [2022-11-22 01:36:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-22 01:36:58,358 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-22 01:36:58,358 INFO L130 BoogieDeclarations]: Found specification of procedure asix_sw_reset [2022-11-22 01:36:58,358 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_sw_reset [2022-11-22 01:36:58,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:36:58,359 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_bind [2022-11-22 01:36:58,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_bind [2022-11-22 01:36:58,359 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_phy_addr [2022-11-22 01:36:58,359 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_phy_addr [2022-11-22 01:36:58,359 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_cmd [2022-11-22 01:36:58,359 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_cmd [2022-11-22 01:36:58,360 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 01:36:58,360 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 01:36:58,360 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_medium_status [2022-11-22 01:36:58,360 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_medium_status [2022-11-22 01:36:58,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 01:36:58,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:36:58,361 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_cmd [2022-11-22 01:36:58,361 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_cmd [2022-11-22 01:36:58,361 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 01:36:58,362 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 01:36:58,362 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-22 01:36:58,362 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-22 01:36:58,362 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 01:36:58,362 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 01:36:58,362 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_nway_reset [2022-11-22 01:36:58,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_nway_reset [2022-11-22 01:36:58,362 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 01:36:58,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 01:36:58,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 01:36:58,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 01:36:58,363 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_gpio [2022-11-22 01:36:58,363 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_gpio [2022-11-22 01:36:58,363 INFO L130 BoogieDeclarations]: Found specification of procedure asix_mdio_read [2022-11-22 01:36:58,363 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_mdio_read [2022-11-22 01:36:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-11-22 01:36:58,364 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-11-22 01:36:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_link_reset [2022-11-22 01:36:58,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_link_reset [2022-11-22 01:36:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_restart [2022-11-22 01:36:58,364 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_restart [2022-11-22 01:36:58,364 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 01:36:58,365 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 01:36:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 01:36:58,365 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 01:36:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:36:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 01:36:58,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 01:36:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_adjust_link [2022-11-22 01:36:58,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_adjust_link [2022-11-22 01:36:58,366 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_set_multicast [2022-11-22 01:36:58,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_set_multicast [2022-11-22 01:36:58,366 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_rx_fixup [2022-11-22 01:36:58,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_rx_fixup [2022-11-22 01:36:58,366 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_sw_mii [2022-11-22 01:36:58,366 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_sw_mii [2022-11-22 01:36:58,366 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_bind [2022-11-22 01:36:58,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_bind [2022-11-22 01:36:58,367 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_status [2022-11-22 01:36:58,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_status [2022-11-22 01:36:58,367 INFO L130 BoogieDeclarations]: Found specification of procedure asix_rx_fixup_common [2022-11-22 01:36:58,367 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_rx_fixup_common [2022-11-22 01:36:58,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 01:36:58,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 01:36:58,368 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2022-11-22 01:36:58,368 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2022-11-22 01:36:58,368 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-11-22 01:36:58,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-11-22 01:36:58,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:36:58,368 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_eeprom [2022-11-22 01:36:58,368 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_eeprom [2022-11-22 01:36:58,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 01:36:58,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 01:36:58,369 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_wol [2022-11-22 01:36:58,370 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_wol [2022-11-22 01:36:59,429 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:36:59,447 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:36:59,811 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 01:37:10,871 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 01:37:11,042 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:37:12,630 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:37:12,630 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-22 01:37:12,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:37:12 BoogieIcfgContainer [2022-11-22 01:37:12,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:37:12,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:37:12,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:37:12,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:37:12,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:36:52" (1/3) ... [2022-11-22 01:37:12,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c730e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:37:12, skipping insertion in model container [2022-11-22 01:37:12,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:36:57" (2/3) ... [2022-11-22 01:37:12,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c730e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:37:12, skipping insertion in model container [2022-11-22 01:37:12,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:37:12" (3/3) ... [2022-11-22 01:37:12,650 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2022-11-22 01:37:12,671 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:37:12,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:37:12,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:37:12,780 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;@150c43f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:37:12,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:37:12,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 1746 states, 1040 states have (on average 1.3211538461538461) internal successors, (1374), 1049 states have internal predecessors, (1374), 597 states have call successors, (597), 110 states have call predecessors, (597), 109 states have return successors, (590), 585 states have call predecessors, (590), 590 states have call successors, (590) [2022-11-22 01:37:12,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-11-22 01:37:12,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:12,855 INFO L195 NwaCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:37:12,856 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:37:12,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:12,864 INFO L85 PathProgramCache]: Analyzing trace with hash 2055996438, now seen corresponding path program 1 times [2022-11-22 01:37:12,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:12,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630863955] [2022-11-22 01:37:12,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:12,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:14,804 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2022-11-22 01:37:14,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:14,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630863955] [2022-11-22 01:37:14,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630863955] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:14,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:14,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:37:14,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845998250] [2022-11-22 01:37:14,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:14,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:37:14,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:14,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:37:14,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:14,865 INFO L87 Difference]: Start difference. First operand has 1746 states, 1040 states have (on average 1.3211538461538461) internal successors, (1374), 1049 states have internal predecessors, (1374), 597 states have call successors, (597), 110 states have call predecessors, (597), 109 states have return successors, (590), 585 states have call predecessors, (590), 590 states have call successors, (590) Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-22 01:37:18,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:18,232 INFO L93 Difference]: Finished difference Result 5008 states and 7418 transitions. [2022-11-22 01:37:18,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:37:18,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 414 [2022-11-22 01:37:18,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:18,287 INFO L225 Difference]: With dead ends: 5008 [2022-11-22 01:37:18,288 INFO L226 Difference]: Without dead ends: 3273 [2022-11-22 01:37:18,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:18,314 INFO L413 NwaCegarLoop]: 2735 mSDtfsCounter, 2325 mSDsluCounter, 2119 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2325 SdHoareTripleChecker+Valid, 4854 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:18,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2325 Valid, 4854 Invalid, 867 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-22 01:37:18,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2022-11-22 01:37:18,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 3269. [2022-11-22 01:37:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3269 states, 1981 states have (on average 1.3190307925290257) internal successors, (2613), 1997 states have internal predecessors, (2613), 1075 states have call successors, (1075), 212 states have call predecessors, (1075), 212 states have return successors, (1075), 1063 states have call predecessors, (1075), 1075 states have call successors, (1075) [2022-11-22 01:37:18,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 4763 transitions. [2022-11-22 01:37:18,670 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 4763 transitions. Word has length 414 [2022-11-22 01:37:18,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:18,674 INFO L495 AbstractCegarLoop]: Abstraction has 3269 states and 4763 transitions. [2022-11-22 01:37:18,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-22 01:37:18,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 4763 transitions. [2022-11-22 01:37:18,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-11-22 01:37:18,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:18,698 INFO L195 NwaCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:37:18,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:37:18,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:37:18,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:18,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1858243696, now seen corresponding path program 1 times [2022-11-22 01:37:18,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:18,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894963395] [2022-11-22 01:37:18,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:18,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:19,494 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2022-11-22 01:37:19,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:19,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894963395] [2022-11-22 01:37:19,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894963395] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:19,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:19,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:37:19,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347431312] [2022-11-22 01:37:19,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:19,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:37:19,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:19,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:37:19,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:19,500 INFO L87 Difference]: Start difference. First operand 3269 states and 4763 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 01:37:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:22,527 INFO L93 Difference]: Finished difference Result 9549 states and 13893 transitions. [2022-11-22 01:37:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:37:22,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 421 [2022-11-22 01:37:22,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:22,571 INFO L225 Difference]: With dead ends: 9549 [2022-11-22 01:37:22,572 INFO L226 Difference]: Without dead ends: 6357 [2022-11-22 01:37:22,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:22,589 INFO L413 NwaCegarLoop]: 2700 mSDtfsCounter, 2261 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 4762 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:22,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2261 Valid, 4762 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-22 01:37:22,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6357 states. [2022-11-22 01:37:22,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6357 to 6353. [2022-11-22 01:37:22,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6353 states, 3866 states have (on average 1.3186756337299534) internal successors, (5098), 3900 states have internal predecessors, (5098), 2062 states have call successors, (2062), 424 states have call predecessors, (2062), 424 states have return successors, (2062), 2036 states have call predecessors, (2062), 2062 states have call successors, (2062) [2022-11-22 01:37:22,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6353 states to 6353 states and 9222 transitions. [2022-11-22 01:37:22,939 INFO L78 Accepts]: Start accepts. Automaton has 6353 states and 9222 transitions. Word has length 421 [2022-11-22 01:37:22,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:22,942 INFO L495 AbstractCegarLoop]: Abstraction has 6353 states and 9222 transitions. [2022-11-22 01:37:22,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 01:37:22,942 INFO L276 IsEmpty]: Start isEmpty. Operand 6353 states and 9222 transitions. [2022-11-22 01:37:22,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2022-11-22 01:37:22,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:22,957 INFO L195 NwaCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:37:22,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:37:22,957 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:37:22,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:22,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1876973614, now seen corresponding path program 1 times [2022-11-22 01:37:22,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:22,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318092323] [2022-11-22 01:37:22,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:22,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:23,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:23,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2022-11-22 01:37:23,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:23,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318092323] [2022-11-22 01:37:23,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318092323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:23,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:23,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:37:23,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356553867] [2022-11-22 01:37:23,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:23,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:37:23,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:23,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:37:23,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:23,755 INFO L87 Difference]: Start difference. First operand 6353 states and 9222 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-22 01:37:27,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:27,543 INFO L93 Difference]: Finished difference Result 18153 states and 26262 transitions. [2022-11-22 01:37:27,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:37:27,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 423 [2022-11-22 01:37:27,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:27,636 INFO L225 Difference]: With dead ends: 18153 [2022-11-22 01:37:27,637 INFO L226 Difference]: Without dead ends: 11877 [2022-11-22 01:37:27,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:27,676 INFO L413 NwaCegarLoop]: 2769 mSDtfsCounter, 2110 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 4828 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:27,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2110 Valid, 4828 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-22 01:37:27,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11877 states. [2022-11-22 01:37:28,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11877 to 11873. [2022-11-22 01:37:28,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11873 states, 7240 states have (on average 1.3138121546961326) internal successors, (9512), 7290 states have internal predecessors, (9512), 3800 states have call successors, (3800), 832 states have call predecessors, (3800), 832 states have return successors, (3800), 3766 states have call predecessors, (3800), 3800 states have call successors, (3800) [2022-11-22 01:37:28,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11873 states to 11873 states and 17112 transitions. [2022-11-22 01:37:28,584 INFO L78 Accepts]: Start accepts. Automaton has 11873 states and 17112 transitions. Word has length 423 [2022-11-22 01:37:28,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:28,585 INFO L495 AbstractCegarLoop]: Abstraction has 11873 states and 17112 transitions. [2022-11-22 01:37:28,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-11-22 01:37:28,586 INFO L276 IsEmpty]: Start isEmpty. Operand 11873 states and 17112 transitions. [2022-11-22 01:37:28,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-11-22 01:37:28,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:28,599 INFO L195 NwaCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:37:28,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:37:28,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:37:28,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:28,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1800870328, now seen corresponding path program 1 times [2022-11-22 01:37:28,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:28,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237547936] [2022-11-22 01:37:28,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:28,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2022-11-22 01:37:29,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:29,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237547936] [2022-11-22 01:37:29,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237547936] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:29,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:29,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:37:29,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467562974] [2022-11-22 01:37:29,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:29,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:37:29,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:29,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:37:29,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:29,266 INFO L87 Difference]: Start difference. First operand 11873 states and 17112 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 01:37:33,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:33,372 INFO L93 Difference]: Finished difference Result 34676 states and 49914 transitions. [2022-11-22 01:37:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:37:33,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 421 [2022-11-22 01:37:33,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:33,522 INFO L225 Difference]: With dead ends: 34676 [2022-11-22 01:37:33,522 INFO L226 Difference]: Without dead ends: 22880 [2022-11-22 01:37:33,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:33,589 INFO L413 NwaCegarLoop]: 3121 mSDtfsCounter, 2259 mSDsluCounter, 2062 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 5183 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:33,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2259 Valid, 5183 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-22 01:37:33,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22880 states. [2022-11-22 01:37:35,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22880 to 22876. [2022-11-22 01:37:35,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22876 states, 13990 states have (on average 1.310507505360972) internal successors, (18334), 14092 states have internal predecessors, (18334), 7250 states have call successors, (7250), 1635 states have call predecessors, (7250), 1635 states have return successors, (7250), 7180 states have call predecessors, (7250), 7250 states have call successors, (7250) [2022-11-22 01:37:35,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22876 states to 22876 states and 32834 transitions. [2022-11-22 01:37:35,292 INFO L78 Accepts]: Start accepts. Automaton has 22876 states and 32834 transitions. Word has length 421 [2022-11-22 01:37:35,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:35,295 INFO L495 AbstractCegarLoop]: Abstraction has 22876 states and 32834 transitions. [2022-11-22 01:37:35,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-11-22 01:37:35,296 INFO L276 IsEmpty]: Start isEmpty. Operand 22876 states and 32834 transitions. [2022-11-22 01:37:35,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-11-22 01:37:35,312 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:35,312 INFO L195 NwaCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 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] [2022-11-22 01:37:35,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 01:37:35,313 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:37:35,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:35,314 INFO L85 PathProgramCache]: Analyzing trace with hash 151572766, now seen corresponding path program 1 times [2022-11-22 01:37:35,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:35,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229311294] [2022-11-22 01:37:35,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:35,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:36,048 INFO L134 CoverageAnalysis]: Checked inductivity of 5703 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5703 trivial. 0 not checked. [2022-11-22 01:37:36,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:36,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229311294] [2022-11-22 01:37:36,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229311294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:36,049 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:36,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:37:36,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678668479] [2022-11-22 01:37:36,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:36,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:37:36,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:36,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:37:36,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:36,051 INFO L87 Difference]: Start difference. First operand 22876 states and 32834 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 01:37:40,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:37:41,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:41,060 INFO L93 Difference]: Finished difference Result 66806 states and 95742 transitions. [2022-11-22 01:37:41,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:37:41,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 429 [2022-11-22 01:37:41,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:41,296 INFO L225 Difference]: With dead ends: 66806 [2022-11-22 01:37:41,297 INFO L226 Difference]: Without dead ends: 44007 [2022-11-22 01:37:41,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:41,387 INFO L413 NwaCegarLoop]: 2597 mSDtfsCounter, 2201 mSDsluCounter, 2048 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 4645 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:41,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 4645 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-22 01:37:41,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44007 states. [2022-11-22 01:37:44,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44007 to 43973. [2022-11-22 01:37:44,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43973 states, 26866 states have (on average 1.3049207176356734) internal successors, (35058), 27102 states have internal predecessors, (35058), 13926 states have call successors, (13926), 3180 states have call predecessors, (13926), 3180 states have return successors, (13926), 13754 states have call predecessors, (13926), 13926 states have call successors, (13926) [2022-11-22 01:37:44,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43973 states to 43973 states and 62910 transitions. [2022-11-22 01:37:44,527 INFO L78 Accepts]: Start accepts. Automaton has 43973 states and 62910 transitions. Word has length 429 [2022-11-22 01:37:44,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:44,528 INFO L495 AbstractCegarLoop]: Abstraction has 43973 states and 62910 transitions. [2022-11-22 01:37:44,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 01:37:44,529 INFO L276 IsEmpty]: Start isEmpty. Operand 43973 states and 62910 transitions. [2022-11-22 01:37:44,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-11-22 01:37:44,543 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:44,543 INFO L195 NwaCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 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] [2022-11-22 01:37:44,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:37:44,544 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:37:44,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:44,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1623760924, now seen corresponding path program 1 times [2022-11-22 01:37:44,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:44,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428616260] [2022-11-22 01:37:44,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:44,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:45,689 INFO L134 CoverageAnalysis]: Checked inductivity of 5703 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5703 trivial. 0 not checked. [2022-11-22 01:37:45,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:45,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428616260] [2022-11-22 01:37:45,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428616260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:45,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:45,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:37:45,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339964938] [2022-11-22 01:37:45,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:45,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:37:45,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:45,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:37:45,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:45,693 INFO L87 Difference]: Start difference. First operand 43973 states and 62910 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 01:37:52,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:37:52,256 INFO L93 Difference]: Finished difference Result 126775 states and 180903 transitions. [2022-11-22 01:37:52,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:37:52,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 428 [2022-11-22 01:37:52,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:37:52,876 INFO L225 Difference]: With dead ends: 126775 [2022-11-22 01:37:52,877 INFO L226 Difference]: Without dead ends: 82879 [2022-11-22 01:37:53,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:53,057 INFO L413 NwaCegarLoop]: 2794 mSDtfsCounter, 2210 mSDsluCounter, 2048 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 4842 SdHoareTripleChecker+Invalid, 933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:37:53,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2210 Valid, 4842 Invalid, 933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-22 01:37:53,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82879 states. [2022-11-22 01:37:57,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82879 to 82845. [2022-11-22 01:37:57,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82845 states, 50435 states have (on average 1.2953107960741548) internal successors, (65329), 50939 states have internal predecessors, (65329), 26293 states have call successors, (26293), 6116 states have call predecessors, (26293), 6116 states have return successors, (26293), 25917 states have call predecessors, (26293), 26293 states have call successors, (26293) [2022-11-22 01:37:58,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82845 states to 82845 states and 117915 transitions. [2022-11-22 01:37:58,338 INFO L78 Accepts]: Start accepts. Automaton has 82845 states and 117915 transitions. Word has length 428 [2022-11-22 01:37:58,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:37:58,339 INFO L495 AbstractCegarLoop]: Abstraction has 82845 states and 117915 transitions. [2022-11-22 01:37:58,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-22 01:37:58,340 INFO L276 IsEmpty]: Start isEmpty. Operand 82845 states and 117915 transitions. [2022-11-22 01:37:58,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-11-22 01:37:58,352 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:37:58,352 INFO L195 NwaCegarLoop]: trace histogram [40, 38, 38, 38, 38, 38, 38, 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] [2022-11-22 01:37:58,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 01:37:58,353 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:37:58,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:37:58,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1715133373, now seen corresponding path program 1 times [2022-11-22 01:37:58,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:37:58,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671677691] [2022-11-22 01:37:58,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:37:58,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:37:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:37:59,088 INFO L134 CoverageAnalysis]: Checked inductivity of 5781 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5778 trivial. 0 not checked. [2022-11-22 01:37:59,089 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:37:59,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671677691] [2022-11-22 01:37:59,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671677691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:37:59,089 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:37:59,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:37:59,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544349227] [2022-11-22 01:37:59,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:37:59,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:37:59,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:37:59,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:37:59,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:37:59,092 INFO L87 Difference]: Start difference. First operand 82845 states and 117915 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-22 01:38:05,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:38:05,410 INFO L93 Difference]: Finished difference Result 166851 states and 237071 transitions. [2022-11-22 01:38:05,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:38:05,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 431 [2022-11-22 01:38:05,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:38:05,946 INFO L225 Difference]: With dead ends: 166851 [2022-11-22 01:38:05,946 INFO L226 Difference]: Without dead ends: 84083 [2022-11-22 01:38:06,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:06,268 INFO L413 NwaCegarLoop]: 2320 mSDtfsCounter, 924 mSDsluCounter, 2056 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 4376 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-22 01:38:06,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 4376 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-22 01:38:06,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84083 states. [2022-11-22 01:38:10,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84083 to 84083. [2022-11-22 01:38:10,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84083 states, 51160 states have (on average 1.2927091477716965) internal successors, (66135), 51666 states have internal predecessors, (66135), 26565 states have call successors, (26565), 6357 states have call predecessors, (26565), 6357 states have return successors, (26565), 26189 states have call predecessors, (26565), 26565 states have call successors, (26565) [2022-11-22 01:38:10,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84083 states to 84083 states and 119265 transitions. [2022-11-22 01:38:10,649 INFO L78 Accepts]: Start accepts. Automaton has 84083 states and 119265 transitions. Word has length 431 [2022-11-22 01:38:10,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:38:10,650 INFO L495 AbstractCegarLoop]: Abstraction has 84083 states and 119265 transitions. [2022-11-22 01:38:10,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-11-22 01:38:10,651 INFO L276 IsEmpty]: Start isEmpty. Operand 84083 states and 119265 transitions. [2022-11-22 01:38:10,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-11-22 01:38:10,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:38:10,664 INFO L195 NwaCegarLoop]: trace histogram [43, 38, 38, 38, 38, 38, 38, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:38:10,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 01:38:10,664 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:38:10,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:38:10,665 INFO L85 PathProgramCache]: Analyzing trace with hash -2019798259, now seen corresponding path program 1 times [2022-11-22 01:38:10,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:38:10,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503506733] [2022-11-22 01:38:10,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:38:10,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:38:11,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:38:11,972 INFO L134 CoverageAnalysis]: Checked inductivity of 6058 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6051 trivial. 0 not checked. [2022-11-22 01:38:11,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:38:11,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503506733] [2022-11-22 01:38:11,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503506733] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:38:11,973 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:38:11,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:38:11,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382644730] [2022-11-22 01:38:11,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:38:11,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:38:11,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:38:11,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:38:11,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:38:11,977 INFO L87 Difference]: Start difference. First operand 84083 states and 119265 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (50), 3 states have call predecessors, (50), 3 states have call successors, (50)