./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 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/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_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-5e519f3 [2022-11-03 02:38:14,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:38:14,319 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:38:14,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:38:14,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:38:14,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:38:14,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:38:14,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:38:14,366 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:38:14,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:38:14,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:38:14,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:38:14,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:38:14,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:38:14,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:38:14,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:38:14,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:38:14,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:38:14,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:38:14,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:38:14,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:38:14,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:38:14,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:38:14,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:38:14,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:38:14,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:38:14,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:38:14,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:38:14,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:38:14,411 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:38:14,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:38:14,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:38:14,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:38:14,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:38:14,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:38:14,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:38:14,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:38:14,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:38:14,416 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:38:14,417 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:38:14,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:38:14,419 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:38:14,456 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:38:14,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:38:14,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:38:14,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:38:14,462 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:38:14,462 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:38:14,462 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:38:14,462 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:38:14,463 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:38:14,463 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:38:14,464 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:38:14,464 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:38:14,464 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:38:14,465 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:38:14,465 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:38:14,465 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:38:14,465 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:38:14,465 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:38:14,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:38:14,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:38:14,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:38:14,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:38:14,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:38:14,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:38:14,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:38:14,468 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:38:14,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:38:14,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:38:14,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:38:14,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:38:14,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:38:14,469 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:38:14,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:38:14,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:38:14,470 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:38:14,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:38:14,470 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:38:14,470 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:38:14,471 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_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f1a59e3fe28583d669f3a9c734ebc5395c61cae2e7711aea93760782e80de65 [2022-11-03 02:38:14,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:38:14,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:38:14,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:38:14,897 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:38:14,898 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:38:14,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2022-11-03 02:38:14,977 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/data/4ad6dd4ce/72f9b7a928ea48aea46eff0b59d1c363/FLAG53e4b6b5b [2022-11-03 02:38:16,067 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:38:16,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2022-11-03 02:38:16,145 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/data/4ad6dd4ce/72f9b7a928ea48aea46eff0b59d1c363/FLAG53e4b6b5b [2022-11-03 02:38:16,356 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/data/4ad6dd4ce/72f9b7a928ea48aea46eff0b59d1c363 [2022-11-03 02:38:16,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:38:16,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:38:16,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:38:16,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:38:16,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:38:16,371 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:38:16" (1/1) ... [2022-11-03 02:38:16,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3f50db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:16, skipping insertion in model container [2022-11-03 02:38:16,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:38:16" (1/1) ... [2022-11-03 02:38:16,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:38:16,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:38:20,273 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2022-11-03 02:38:20,276 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2022-11-03 02:38:20,293 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:38:20,395 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:38:20,830 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410722,410735] [2022-11-03 02:38:20,831 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i[410867,410880] [2022-11-03 02:38:20,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:38:21,259 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:38:21,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:21 WrapperNode [2022-11-03 02:38:21,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:38:21,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:38:21,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:38:21,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:38:21,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:21" (1/1) ... [2022-11-03 02:38:21,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:21" (1/1) ... [2022-11-03 02:38:21,719 INFO L138 Inliner]: procedures = 459, calls = 3897, calls flagged for inlining = 222, calls inlined = 206, statements flattened = 6629 [2022-11-03 02:38:21,720 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:38:21,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:38:21,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:38:21,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:38:21,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:21" (1/1) ... [2022-11-03 02:38:21,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:21" (1/1) ... [2022-11-03 02:38:21,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:21" (1/1) ... [2022-11-03 02:38:21,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:21" (1/1) ... [2022-11-03 02:38:21,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:21" (1/1) ... [2022-11-03 02:38:22,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:21" (1/1) ... [2022-11-03 02:38:22,071 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:21" (1/1) ... [2022-11-03 02:38:22,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:21" (1/1) ... [2022-11-03 02:38:22,147 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:38:22,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:38:22,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:38:22,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:38:22,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:21" (1/1) ... [2022-11-03 02:38:22,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:38:22,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:38:22,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:38:22,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e84728c-1039-4799-b4fd-1d3b91fd7349/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:38:22,229 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_medium_mode [2022-11-03 02:38:22,230 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_medium_mode [2022-11-03 02:38:22,230 INFO L130 BoogieDeclarations]: Found specification of procedure mii_check_media [2022-11-03 02:38:22,230 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_check_media [2022-11-03 02:38:22,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:38:22,231 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:38:22,231 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_nway_reset [2022-11-03 02:38:22,231 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_nway_reset [2022-11-03 02:38:22,231 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_link [2022-11-03 02:38:22,231 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_link [2022-11-03 02:38:22,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:38:22,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:38:22,232 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_rx_ctl [2022-11-03 02:38:22,232 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_rx_ctl [2022-11-03 02:38:22,232 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_stop [2022-11-03 02:38:22,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_stop [2022-11-03 02:38:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_set_settings [2022-11-03 02:38:22,234 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_set_settings [2022-11-03 02:38:22,234 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_reset [2022-11-03 02:38:22,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_reset [2022-11-03 02:38:22,234 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-03 02:38:22,234 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-03 02:38:22,235 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_settings [2022-11-03 02:38:22,235 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_settings [2022-11-03 02:38:22,235 INFO L130 BoogieDeclarations]: Found specification of procedure asix_mdio_write [2022-11-03 02:38:22,235 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_mdio_write [2022-11-03 02:38:22,236 INFO L130 BoogieDeclarations]: Found specification of procedure asix_status [2022-11-03 02:38:22,236 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_status [2022-11-03 02:38:22,236 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_rx_ctl [2022-11-03 02:38:22,237 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_rx_ctl [2022-11-03 02:38:22,237 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_probe [2022-11-03 02:38:22,237 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_probe [2022-11-03 02:38:22,237 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-03 02:38:22,237 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-03 02:38:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_eeprom [2022-11-03 02:38:22,238 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_eeprom [2022-11-03 02:38:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:38:22,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:38:22,238 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 02:38:22,238 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 02:38:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 02:38:22,239 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 02:38:22,239 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:38:22,239 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:38:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:38:22,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:38:22,241 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_reset_phy [2022-11-03 02:38:22,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_reset_phy [2022-11-03 02:38:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:38:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_unbind [2022-11-03 02:38:22,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_unbind [2022-11-03 02:38:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_link_reset [2022-11-03 02:38:22,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_link_reset [2022-11-03 02:38:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:38:22,243 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:38:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_asix_driver_exit_10_2 [2022-11-03 02:38:22,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_asix_driver_exit_10_2 [2022-11-03 02:38:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_netdev_dev_addr [2022-11-03 02:38:22,245 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_netdev_dev_addr [2022-11-03 02:38:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_bind [2022-11-03 02:38:22,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_bind [2022-11-03 02:38:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:38:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_resume [2022-11-03 02:38:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_resume [2022-11-03 02:38:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:38:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:38:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:38:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_tx_timeout [2022-11-03 02:38:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_tx_timeout [2022-11-03 02:38:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_bind [2022-11-03 02:38:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_bind [2022-11-03 02:38:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:38:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-03 02:38:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-03 02:38:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:38:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:38:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_phy_addr [2022-11-03 02:38:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_phy_addr [2022-11-03 02:38:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:38:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:38:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:38:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:38:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure asix_rx_fixup_internal [2022-11-03 02:38:22,251 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_rx_fixup_internal [2022-11-03 02:38:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:38:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 02:38:22,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 02:38:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 02:38:22,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 02:38:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:38:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-03 02:38:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-03 02:38:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_eeprom_len [2022-11-03 02:38:22,254 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_eeprom_len [2022-11-03 02:38:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:38:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:38:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:38:22,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:38:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:38:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_wol [2022-11-03 02:38:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_wol [2022-11-03 02:38:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:38:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 02:38:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_open [2022-11-03 02:38:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_open [2022-11-03 02:38:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:38:22,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:38:22,258 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_cmd_async [2022-11-03 02:38:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_cmd_async [2022-11-03 02:38:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 02:38:22,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 02:38:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_unbind [2022-11-03 02:38:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_unbind [2022-11-03 02:38:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_reset [2022-11-03 02:38:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_reset [2022-11-03 02:38:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_link_reset [2022-11-03 02:38:22,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_link_reset [2022-11-03 02:38:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_start_xmit [2022-11-03 02:38:22,272 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_start_xmit [2022-11-03 02:38:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 02:38:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 02:38:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_drvinfo [2022-11-03 02:38:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_drvinfo [2022-11-03 02:38:22,273 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_hw_mii [2022-11-03 02:38:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_hw_mii [2022-11-03 02:38:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:38:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:38:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-03 02:38:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-03 02:38:22,274 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_msglevel [2022-11-03 02:38:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_msglevel [2022-11-03 02:38:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-11-03 02:38:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-11-03 02:38:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:38:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:38:22,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:38:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:38:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_set_settings [2022-11-03 02:38:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_set_settings [2022-11-03 02:38:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_reset [2022-11-03 02:38:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_reset [2022-11-03 02:38:22,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_6_4 [2022-11-03 02:38:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_6_4 [2022-11-03 02:38:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_phyid [2022-11-03 02:38:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_phyid [2022-11-03 02:38:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_stop [2022-11-03 02:38:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_stop [2022-11-03 02:38:22,277 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:38:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:38:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-03 02:38:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-03 02:38:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure asix_tx_fixup [2022-11-03 02:38:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_tx_fixup [2022-11-03 02:38:22,278 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-03 02:38:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-03 02:38:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-03 02:38:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-03 02:38:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2022-11-03 02:38:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2022-11-03 02:38:22,279 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_set_msglevel [2022-11-03 02:38:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_set_msglevel [2022-11-03 02:38:22,280 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-03 02:38:22,280 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-03 02:38:22,280 INFO L130 BoogieDeclarations]: Found specification of procedure asix_sw_reset [2022-11-03 02:38:22,280 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_sw_reset [2022-11-03 02:38:22,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:38:22,280 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_bind [2022-11-03 02:38:22,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_bind [2022-11-03 02:38:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_phy_addr [2022-11-03 02:38:22,281 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_phy_addr [2022-11-03 02:38:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_cmd [2022-11-03 02:38:22,281 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_cmd [2022-11-03 02:38:22,281 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:38:22,281 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:38:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_medium_status [2022-11-03 02:38:22,282 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_medium_status [2022-11-03 02:38:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:38:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:38:22,282 INFO L130 BoogieDeclarations]: Found specification of procedure asix_read_cmd [2022-11-03 02:38:22,282 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_read_cmd [2022-11-03 02:38:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:38:22,283 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:38:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-03 02:38:22,283 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-03 02:38:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:38:22,283 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:38:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_nway_reset [2022-11-03 02:38:22,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_nway_reset [2022-11-03 02:38:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:38:22,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:38:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-03 02:38:22,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-03 02:38:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure asix_write_gpio [2022-11-03 02:38:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_write_gpio [2022-11-03 02:38:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure asix_mdio_read [2022-11-03 02:38:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_mdio_read [2022-11-03 02:38:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2022-11-03 02:38:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2022-11-03 02:38:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure ax88178_link_reset [2022-11-03 02:38:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88178_link_reset [2022-11-03 02:38:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_restart [2022-11-03 02:38:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_restart [2022-11-03 02:38:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 02:38:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 02:38:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:38:22,287 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:38:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:38:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:38:22,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:38:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_adjust_link [2022-11-03 02:38:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_adjust_link [2022-11-03 02:38:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172_set_multicast [2022-11-03 02:38:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172_set_multicast [2022-11-03 02:38:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_rx_fixup [2022-11-03 02:38:22,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_rx_fixup [2022-11-03 02:38:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_sw_mii [2022-11-03 02:38:22,289 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_sw_mii [2022-11-03 02:38:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure ax88772_bind [2022-11-03 02:38:22,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88772_bind [2022-11-03 02:38:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure ax88172a_status [2022-11-03 02:38:22,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ax88172a_status [2022-11-03 02:38:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure asix_rx_fixup_common [2022-11-03 02:38:22,290 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_rx_fixup_common [2022-11-03 02:38:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:38:22,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:38:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_get_endpoints [2022-11-03 02:38:22,290 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_get_endpoints [2022-11-03 02:38:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2022-11-03 02:38:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2022-11-03 02:38:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:38:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure asix_get_eeprom [2022-11-03 02:38:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_get_eeprom [2022-11-03 02:38:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:38:22,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:38:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure asix_set_wol [2022-11-03 02:38:22,292 INFO L138 BoogieDeclarations]: Found implementation of procedure asix_set_wol [2022-11-03 02:38:23,432 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:38:23,440 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:38:23,746 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:38:36,079 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 02:38:36,247 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:38:37,991 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:38:37,992 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:38:38,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:38:37 BoogieIcfgContainer [2022-11-03 02:38:38,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:38:38,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:38:38,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:38:38,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:38:38,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:38:16" (1/3) ... [2022-11-03 02:38:38,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b611fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:38:38, skipping insertion in model container [2022-11-03 02:38:38,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:38:21" (2/3) ... [2022-11-03 02:38:38,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b611fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:38:38, skipping insertion in model container [2022-11-03 02:38:38,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:38:37" (3/3) ... [2022-11-03 02:38:38,013 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-asix.cil.i [2022-11-03 02:38:38,036 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:38:38,036 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:38:38,162 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:38:38,172 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;@2588006a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:38:38,173 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:38:38,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 1746 states, 1040 states have (on average 1.3192307692307692) internal successors, (1372), 1049 states have internal predecessors, (1372), 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) [2022-11-03 02:38:38,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-11-03 02:38:38,256 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:38:38,258 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] [2022-11-03 02:38:38,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:38:38,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:38:38,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1469497427, now seen corresponding path program 1 times [2022-11-03 02:38:38,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:38:38,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648220970] [2022-11-03 02:38:38,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:38:38,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:38:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:38:40,352 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2022-11-03 02:38:40,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:38:40,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648220970] [2022-11-03 02:38:40,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648220970] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:38:40,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:38:40,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:38:40,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139803883] [2022-11-03 02:38:40,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:38:40,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:38:40,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:38:40,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:38:40,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:38:40,406 INFO L87 Difference]: Start difference. First operand has 1746 states, 1040 states have (on average 1.3192307692307692) internal successors, (1372), 1049 states have internal predecessors, (1372), 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) [2022-11-03 02:38:44,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:38:44,513 INFO L93 Difference]: Finished difference Result 5008 states and 7412 transitions. [2022-11-03 02:38:44,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:38:44,516 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 [2022-11-03 02:38:44,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:38:44,565 INFO L225 Difference]: With dead ends: 5008 [2022-11-03 02:38:44,565 INFO L226 Difference]: Without dead ends: 3273 [2022-11-03 02:38:44,581 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 [2022-11-03 02:38:44,585 INFO L413 NwaCegarLoop]: 2741 mSDtfsCounter, 2323 mSDsluCounter, 2498 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2323 SdHoareTripleChecker+Valid, 4857 SdHoareTripleChecker+Invalid, 871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:38:44,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2323 Valid, 4857 Invalid, 871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 858 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-03 02:38:44,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2022-11-03 02:38:45,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 3269. [2022-11-03 02:38:45,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3269 states, 1981 states have (on average 1.3170116102978293) internal successors, (2609), 1997 states have internal predecessors, (2609), 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) [2022-11-03 02:38:45,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3269 states to 3269 states and 4759 transitions. [2022-11-03 02:38:45,071 INFO L78 Accepts]: Start accepts. Automaton has 3269 states and 4759 transitions. Word has length 414 [2022-11-03 02:38:45,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:38:45,076 INFO L495 AbstractCegarLoop]: Abstraction has 3269 states and 4759 transitions. [2022-11-03 02:38:45,076 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) [2022-11-03 02:38:45,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3269 states and 4759 transitions. [2022-11-03 02:38:45,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-11-03 02:38:45,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:38:45,107 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] [2022-11-03 02:38:45,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:38:45,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:38:45,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:38:45,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1140303195, now seen corresponding path program 1 times [2022-11-03 02:38:45,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:38:45,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420407495] [2022-11-03 02:38:45,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:38:45,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:38:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:38:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2022-11-03 02:38:46,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:38:46,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420407495] [2022-11-03 02:38:46,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420407495] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:38:46,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:38:46,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:38:46,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510291302] [2022-11-03 02:38:46,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:38:46,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:38:46,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:38:46,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:38:46,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:38:46,256 INFO L87 Difference]: Start difference. First operand 3269 states and 4759 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) [2022-11-03 02:38:49,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:38:49,760 INFO L93 Difference]: Finished difference Result 9549 states and 13881 transitions. [2022-11-03 02:38:49,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:38:49,761 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 [2022-11-03 02:38:49,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:38:49,826 INFO L225 Difference]: With dead ends: 9549 [2022-11-03 02:38:49,826 INFO L226 Difference]: Without dead ends: 6357 [2022-11-03 02:38:49,848 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 [2022-11-03 02:38:49,850 INFO L413 NwaCegarLoop]: 2705 mSDtfsCounter, 2259 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 4764 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-11-03 02:38:49,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2259 Valid, 4764 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-11-03 02:38:49,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6357 states. [2022-11-03 02:38:50,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6357 to 6353. [2022-11-03 02:38:50,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6353 states, 3866 states have (on average 1.3166063114330058) internal successors, (5090), 3900 states have internal predecessors, (5090), 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) [2022-11-03 02:38:50,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6353 states to 6353 states and 9214 transitions. [2022-11-03 02:38:50,307 INFO L78 Accepts]: Start accepts. Automaton has 6353 states and 9214 transitions. Word has length 421 [2022-11-03 02:38:50,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:38:50,310 INFO L495 AbstractCegarLoop]: Abstraction has 6353 states and 9214 transitions. [2022-11-03 02:38:50,310 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) [2022-11-03 02:38:50,310 INFO L276 IsEmpty]: Start isEmpty. Operand 6353 states and 9214 transitions. [2022-11-03 02:38:50,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2022-11-03 02:38:50,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:38:50,330 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] [2022-11-03 02:38:50,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:38:50,332 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:38:50,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:38:50,343 INFO L85 PathProgramCache]: Analyzing trace with hash -63411167, now seen corresponding path program 1 times [2022-11-03 02:38:50,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:38:50,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816426574] [2022-11-03 02:38:50,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:38:50,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:38:50,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:38:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2022-11-03 02:38:51,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:38:51,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816426574] [2022-11-03 02:38:51,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816426574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:38:51,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:38:51,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:38:51,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534785041] [2022-11-03 02:38:51,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:38:51,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:38:51,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:38:51,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:38:51,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:38:51,093 INFO L87 Difference]: Start difference. First operand 6353 states and 9214 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) [2022-11-03 02:38:54,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:38:54,871 INFO L93 Difference]: Finished difference Result 18655 states and 27020 transitions. [2022-11-03 02:38:54,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:38:54,872 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 [2022-11-03 02:38:54,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:38:54,983 INFO L225 Difference]: With dead ends: 18655 [2022-11-03 02:38:54,984 INFO L226 Difference]: Without dead ends: 12379 [2022-11-03 02:38:55,030 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 [2022-11-03 02:38:55,036 INFO L413 NwaCegarLoop]: 2803 mSDtfsCounter, 2257 mSDsluCounter, 2437 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2257 SdHoareTripleChecker+Valid, 4862 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:38:55,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2257 Valid, 4862 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-03 02:38:55,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12379 states. [2022-11-03 02:38:55,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12379 to 12375. [2022-11-03 02:38:55,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12375 states, 7553 states have (on average 1.314179796107507) internal successors, (9926), 7623 states have internal predecessors, (9926), 3976 states have call successors, (3976), 845 states have call predecessors, (3976), 845 states have return successors, (3976), 3922 states have call predecessors, (3976), 3976 states have call successors, (3976) [2022-11-03 02:38:56,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12375 states to 12375 states and 17878 transitions. [2022-11-03 02:38:56,005 INFO L78 Accepts]: Start accepts. Automaton has 12375 states and 17878 transitions. Word has length 421 [2022-11-03 02:38:56,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:38:56,006 INFO L495 AbstractCegarLoop]: Abstraction has 12375 states and 17878 transitions. [2022-11-03 02:38:56,008 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) [2022-11-03 02:38:56,008 INFO L276 IsEmpty]: Start isEmpty. Operand 12375 states and 17878 transitions. [2022-11-03 02:38:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-11-03 02:38:56,027 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:38:56,028 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] [2022-11-03 02:38:56,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:38:56,028 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:38:56,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:38:56,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2024716996, now seen corresponding path program 1 times [2022-11-03 02:38:56,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:38:56,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182063673] [2022-11-03 02:38:56,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:38:56,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:38:56,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:38:56,732 INFO L134 CoverageAnalysis]: Checked inductivity of 5703 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5703 trivial. 0 not checked. [2022-11-03 02:38:56,732 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:38:56,733 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182063673] [2022-11-03 02:38:56,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182063673] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:38:56,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:38:56,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:38:56,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837016581] [2022-11-03 02:38:56,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:38:56,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:38:56,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:38:56,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:38:56,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:38:56,736 INFO L87 Difference]: Start difference. First operand 12375 states and 17878 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) [2022-11-03 02:39:01,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:01,543 INFO L93 Difference]: Finished difference Result 36171 states and 52164 transitions. [2022-11-03 02:39:01,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:39:01,544 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 [2022-11-03 02:39:01,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:01,717 INFO L225 Difference]: With dead ends: 36171 [2022-11-03 02:39:01,717 INFO L226 Difference]: Without dead ends: 23873 [2022-11-03 02:39:01,776 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 [2022-11-03 02:39:01,782 INFO L413 NwaCegarLoop]: 2592 mSDtfsCounter, 2199 mSDsluCounter, 2406 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2199 SdHoareTripleChecker+Valid, 4637 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 [2022-11-03 02:39:01,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2199 Valid, 4637 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-03 02:39:01,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23873 states. [2022-11-03 02:39:03,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23873 to 23855. [2022-11-03 02:39:03,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23855 states, 14546 states have (on average 1.309225904028599) internal successors, (19044), 14702 states have internal predecessors, (19044), 7650 states have call successors, (7650), 1658 states have call predecessors, (7650), 1658 states have return successors, (7650), 7526 states have call predecessors, (7650), 7650 states have call successors, (7650) [2022-11-03 02:39:03,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23855 states to 23855 states and 34344 transitions. [2022-11-03 02:39:03,420 INFO L78 Accepts]: Start accepts. Automaton has 23855 states and 34344 transitions. Word has length 429 [2022-11-03 02:39:03,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:03,422 INFO L495 AbstractCegarLoop]: Abstraction has 23855 states and 34344 transitions. [2022-11-03 02:39:03,422 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) [2022-11-03 02:39:03,422 INFO L276 IsEmpty]: Start isEmpty. Operand 23855 states and 34344 transitions. [2022-11-03 02:39:03,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-11-03 02:39:03,439 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:03,440 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] [2022-11-03 02:39:03,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:39:03,440 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:39:03,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:03,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1649925399, now seen corresponding path program 1 times [2022-11-03 02:39:03,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:39:03,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755609346] [2022-11-03 02:39:03,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:03,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:39:03,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:39:04,008 INFO L134 CoverageAnalysis]: Checked inductivity of 5703 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5703 trivial. 0 not checked. [2022-11-03 02:39:04,008 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:39:04,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755609346] [2022-11-03 02:39:04,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755609346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:39:04,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:39:04,009 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:39:04,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312705787] [2022-11-03 02:39:04,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:39:04,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:39:04,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:39:04,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:39:04,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:39:04,011 INFO L87 Difference]: Start difference. First operand 23855 states and 34344 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) [2022-11-03 02:39:08,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:08,655 INFO L93 Difference]: Finished difference Result 69035 states and 99114 transitions. [2022-11-03 02:39:08,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:39:08,656 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 [2022-11-03 02:39:08,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:08,963 INFO L225 Difference]: With dead ends: 69035 [2022-11-03 02:39:08,964 INFO L226 Difference]: Without dead ends: 45257 [2022-11-03 02:39:09,075 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 [2022-11-03 02:39:09,076 INFO L413 NwaCegarLoop]: 2787 mSDtfsCounter, 2208 mSDsluCounter, 2405 mSDsCounter, 0 mSdLazyCounter, 919 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2208 SdHoareTripleChecker+Valid, 4832 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 919 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:09,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2208 Valid, 4832 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 919 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-03 02:39:09,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45257 states. [2022-11-03 02:39:12,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45257 to 45239. [2022-11-03 02:39:12,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45239 states, 27484 states have (on average 1.300247416678795) internal successors, (35736), 27812 states have internal predecessors, (35736), 14526 states have call successors, (14526), 3228 states have call predecessors, (14526), 3228 states have return successors, (14526), 14262 states have call predecessors, (14526), 14526 states have call successors, (14526) [2022-11-03 02:39:12,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45239 states to 45239 states and 64788 transitions. [2022-11-03 02:39:12,653 INFO L78 Accepts]: Start accepts. Automaton has 45239 states and 64788 transitions. Word has length 428 [2022-11-03 02:39:12,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:12,654 INFO L495 AbstractCegarLoop]: Abstraction has 45239 states and 64788 transitions. [2022-11-03 02:39:12,654 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) [2022-11-03 02:39:12,654 INFO L276 IsEmpty]: Start isEmpty. Operand 45239 states and 64788 transitions. [2022-11-03 02:39:12,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2022-11-03 02:39:12,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:12,668 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, 1] [2022-11-03 02:39:12,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:39:12,669 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:39:12,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:12,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1961609586, now seen corresponding path program 1 times [2022-11-03 02:39:12,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:39:12,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051800861] [2022-11-03 02:39:12,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:12,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:39:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:39:13,611 INFO L134 CoverageAnalysis]: Checked inductivity of 5700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5700 trivial. 0 not checked. [2022-11-03 02:39:13,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:39:13,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051800861] [2022-11-03 02:39:13,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051800861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:39:13,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:39:13,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:39:13,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487313641] [2022-11-03 02:39:13,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:39:13,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:39:13,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:39:13,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:39:13,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:39:13,614 INFO L87 Difference]: Start difference. First operand 45239 states and 64788 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, (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) [2022-11-03 02:39:20,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:20,517 INFO L93 Difference]: Finished difference Result 128017 states and 182805 transitions. [2022-11-03 02:39:20,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:39:20,518 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, (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 424 [2022-11-03 02:39:20,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:21,261 INFO L225 Difference]: With dead ends: 128017 [2022-11-03 02:39:21,261 INFO L226 Difference]: Without dead ends: 82855 [2022-11-03 02:39:21,524 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 [2022-11-03 02:39:21,526 INFO L413 NwaCegarLoop]: 2941 mSDtfsCounter, 2108 mSDsluCounter, 2438 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2108 SdHoareTripleChecker+Valid, 4997 SdHoareTripleChecker+Invalid, 968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:21,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2108 Valid, 4997 Invalid, 968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2022-11-03 02:39:21,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82855 states. [2022-11-03 02:39:26,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82855 to 82845. [2022-11-03 02:39:26,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82845 states, 50435 states have (on average 1.2930901159908794) internal successors, (65217), 50939 states have internal predecessors, (65217), 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) [2022-11-03 02:39:26,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82845 states to 82845 states and 117803 transitions. [2022-11-03 02:39:26,799 INFO L78 Accepts]: Start accepts. Automaton has 82845 states and 117803 transitions. Word has length 424 [2022-11-03 02:39:26,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:26,800 INFO L495 AbstractCegarLoop]: Abstraction has 82845 states and 117803 transitions. [2022-11-03 02:39:26,800 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, (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) [2022-11-03 02:39:26,801 INFO L276 IsEmpty]: Start isEmpty. Operand 82845 states and 117803 transitions. [2022-11-03 02:39:26,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-11-03 02:39:26,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:26,817 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] [2022-11-03 02:39:26,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:39:26,817 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:39:26,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:26,818 INFO L85 PathProgramCache]: Analyzing trace with hash 17847586, now seen corresponding path program 1 times [2022-11-03 02:39:26,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:39:26,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843230292] [2022-11-03 02:39:26,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:26,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:39:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:39:27,640 INFO L134 CoverageAnalysis]: Checked inductivity of 5781 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5778 trivial. 0 not checked. [2022-11-03 02:39:27,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:39:27,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843230292] [2022-11-03 02:39:27,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843230292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:39:27,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:39:27,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:39:27,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433373237] [2022-11-03 02:39:27,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:39:27,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:39:27,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:39:27,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:39:27,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:39:27,643 INFO L87 Difference]: Start difference. First operand 82845 states and 117803 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) [2022-11-03 02:39:34,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:34,390 INFO L93 Difference]: Finished difference Result 166851 states and 236846 transitions. [2022-11-03 02:39:34,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:39:34,391 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 [2022-11-03 02:39:34,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:35,216 INFO L225 Difference]: With dead ends: 166851 [2022-11-03 02:39:35,217 INFO L226 Difference]: Without dead ends: 84083 [2022-11-03 02:39:35,537 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 [2022-11-03 02:39:35,538 INFO L413 NwaCegarLoop]: 2317 mSDtfsCounter, 923 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 923 SdHoareTripleChecker+Valid, 4370 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:35,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [923 Valid, 4370 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-03 02:39:35,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84083 states. [2022-11-03 02:39:39,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84083 to 84083. [2022-11-03 02:39:39,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84083 states, 51160 states have (on average 1.2905003909304145) internal successors, (66022), 51666 states have internal predecessors, (66022), 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) [2022-11-03 02:39:40,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84083 states to 84083 states and 119152 transitions. [2022-11-03 02:39:40,195 INFO L78 Accepts]: Start accepts. Automaton has 84083 states and 119152 transitions. Word has length 431 [2022-11-03 02:39:40,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:40,196 INFO L495 AbstractCegarLoop]: Abstraction has 84083 states and 119152 transitions. [2022-11-03 02:39:40,197 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) [2022-11-03 02:39:40,197 INFO L276 IsEmpty]: Start isEmpty. Operand 84083 states and 119152 transitions. [2022-11-03 02:39:40,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2022-11-03 02:39:40,214 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:40,215 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] [2022-11-03 02:39:40,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 02:39:40,215 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:39:40,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:40,216 INFO L85 PathProgramCache]: Analyzing trace with hash 1739002916, now seen corresponding path program 1 times [2022-11-03 02:39:40,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:39:40,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108109216] [2022-11-03 02:39:40,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:40,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:39:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:39:40,995 INFO L134 CoverageAnalysis]: Checked inductivity of 6058 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6051 trivial. 0 not checked. [2022-11-03 02:39:40,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:39:40,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108109216] [2022-11-03 02:39:40,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108109216] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:39:40,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:39:40,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:39:40,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390940402] [2022-11-03 02:39:40,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:39:40,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:39:40,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:39:40,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:39:40,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:39:40,999 INFO L87 Difference]: Start difference. First operand 84083 states and 119152 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) [2022-11-03 02:39:43,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []