./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2 --witnessprinter.witness.filename witness --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 fbb6aba39a63540626ae26255eab93a5f2c0864f87ba11cb320579066e7aefd2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:36:53,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:36:53,570 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:36:53,579 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:36:53,582 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:36:53,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:36:53,638 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:36:53,638 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:36:53,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:36:53,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:36:53,641 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:36:53,642 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:36:53,642 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:36:53,643 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:36:53,643 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:36:53,645 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:36:53,646 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:36:53,646 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:36:53,646 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:36:53,647 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:36:53,647 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:36:53,664 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:36:53,665 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:36:53,665 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:36:53,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:36:53,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:36:53,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:36:53,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:36:53,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:36:53,666 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:36:53,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:36:53,667 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:36:53,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:36:53,668 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:36:53,669 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:36:53,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:36:53,669 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:36:53,669 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:36:53,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:36:53,670 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:36:53,670 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:36:53,670 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:36:53,671 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:36:53,671 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:36:53,671 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbb6aba39a63540626ae26255eab93a5f2c0864f87ba11cb320579066e7aefd2 [2024-11-02 12:36:53,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:36:54,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:36:54,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:36:54,016 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:36:54,016 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:36:54,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i Unable to find full path for "g++" [2024-11-02 12:36:56,010 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:36:56,630 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:36:56,631 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2024-11-02 12:36:56,684 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2/data/e4fd567ef/4e94c9f44b384bef8c204a705d98bacc/FLAGecdcdf69a [2024-11-02 12:36:57,088 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2/data/e4fd567ef/4e94c9f44b384bef8c204a705d98bacc [2024-11-02 12:36:57,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:36:57,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:36:57,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:36:57,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:36:57,101 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:36:57,102 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:36:57" (1/1) ... [2024-11-02 12:36:57,103 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a5cb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:57, skipping insertion in model container [2024-11-02 12:36:57,103 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:36:57" (1/1) ... [2024-11-02 12:36:57,281 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:37:00,254 WARN L251 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_b43a8745-c398-4312-b04b-1d21d8a41365/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305216,305229] [2024-11-02 12:37:00,264 WARN L251 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_b43a8745-c398-4312-b04b-1d21d8a41365/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305385,305398] [2024-11-02 12:37:00,264 WARN L251 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_b43a8745-c398-4312-b04b-1d21d8a41365/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305552,305565] [2024-11-02 12:37:00,265 WARN L251 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_b43a8745-c398-4312-b04b-1d21d8a41365/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305720,305733] [2024-11-02 12:37:00,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:00,341 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:37:00,490 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5181] [2024-11-02 12:37:00,492 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5188] [2024-11-02 12:37:00,492 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5195] [2024-11-02 12:37:00,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [5244] [2024-11-02 12:37:00,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5316] [2024-11-02 12:37:00,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5323] [2024-11-02 12:37:00,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/netdevice.h"), "i" (502), "i" (12UL)); [5522-5523] [2024-11-02 12:37:00,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5529] [2024-11-02 12:37:00,782 WARN L251 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_b43a8745-c398-4312-b04b-1d21d8a41365/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305216,305229] [2024-11-02 12:37:00,783 WARN L251 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_b43a8745-c398-4312-b04b-1d21d8a41365/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305385,305398] [2024-11-02 12:37:00,784 WARN L251 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_b43a8745-c398-4312-b04b-1d21d8a41365/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305552,305565] [2024-11-02 12:37:00,784 WARN L251 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_b43a8745-c398-4312-b04b-1d21d8a41365/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305720,305733] [2024-11-02 12:37:00,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:37:00,998 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:37:00,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00 WrapperNode [2024-11-02 12:37:00,999 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:37:01,001 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:01,001 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:37:01,001 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:37:01,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,114 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,301 INFO L138 Inliner]: procedures = 410, calls = 2035, calls flagged for inlining = 211, calls inlined = 188, statements flattened = 5062 [2024-11-02 12:37:01,303 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:37:01,304 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:37:01,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:37:01,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:37:01,315 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,316 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,345 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,476 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,507 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,532 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,556 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:37:01,594 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:37:01,595 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:37:01,595 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:37:01,596 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (1/1) ... [2024-11-02 12:37:01,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:37:01,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:01,629 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:37:01,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b43a8745-c398-4312-b04b-1d21d8a41365/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:37:01,662 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_probe [2024-11-02 12:37:01,662 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_probe [2024-11-02 12:37:01,662 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-02 12:37:01,662 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-02 12:37:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-02 12:37:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-02 12:37:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-02 12:37:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-02 12:37:01,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-02 12:37:01,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2024-11-02 12:37:01,665 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-02 12:37:01,665 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-02 12:37:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2024-11-02 12:37:01,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2024-11-02 12:37:01,666 INFO L130 BoogieDeclarations]: Found specification of procedure __dnet_set_hwaddr [2024-11-02 12:37:01,668 INFO L138 BoogieDeclarations]: Found implementation of procedure __dnet_set_hwaddr [2024-11-02 12:37:01,668 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-02 12:37:01,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-02 12:37:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-11-02 12:37:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-11-02 12:37:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2024-11-02 12:37:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2024-11-02 12:37:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-02 12:37:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-02 12:37:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-02 12:37:01,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-02 12:37:01,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:37:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2024-11-02 12:37:01,670 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2024-11-02 12:37:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-02 12:37:01,670 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-02 12:37:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-02 12:37:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2024-11-02 12:37:01,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2024-11-02 12:37:01,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:37:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-02 12:37:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-02 12:37:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-02 12:37:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-02 12:37:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:37:01,672 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-02 12:37:01,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-02 12:37:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_reset_hw [2024-11-02 12:37:01,673 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_reset_hw [2024-11-02 12:37:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-02 12:37:01,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2024-11-02 12:37:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:37:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-02 12:37:01,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-02 12:37:01,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-02 12:37:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-02 12:37:01,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2024-11-02 12:37:01,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2024-11-02 12:37:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:37:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2024-11-02 12:37:01,675 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2024-11-02 12:37:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-02 12:37:01,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-02 12:37:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-02 12:37:01,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-02 12:37:01,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:37:01,676 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-02 12:37:01,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-02 12:37:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-02 12:37:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-02 12:37:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-02 12:37:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-02 12:37:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-02 12:37:01,677 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-02 12:37:01,677 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-02 12:37:01,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-02 12:37:01,678 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2024-11-02 12:37:01,678 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2024-11-02 12:37:01,678 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2024-11-02 12:37:01,678 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2024-11-02 12:37:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-02 12:37:01,679 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-02 12:37:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:37:01,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:37:01,679 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-02 12:37:01,679 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-02 12:37:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2024-11-02 12:37:01,680 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2024-11-02 12:37:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-02 12:37:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:37:01,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-02 12:37:01,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-02 12:37:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2024-11-02 12:37:01,681 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2024-11-02 12:37:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-02 12:37:01,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2024-11-02 12:37:01,681 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_dnet [2024-11-02 12:37:01,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_dnet [2024-11-02 12:37:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-02 12:37:01,682 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-02 12:37:01,682 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_readw_mac [2024-11-02 12:37:01,683 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_readw_mac [2024-11-02 12:37:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:37:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:37:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-02 12:37:01,683 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-02 12:37:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-02 12:37:01,683 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-02 12:37:01,683 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-11-02 12:37:01,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-11-02 12:37:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-02 12:37:01,684 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-02 12:37:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-02 12:37:01,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-02 12:37:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2024-11-02 12:37:01,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2024-11-02 12:37:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_close [2024-11-02 12:37:01,684 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_close [2024-11-02 12:37:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2024-11-02 12:37:01,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2024-11-02 12:37:01,684 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_handle_link_change [2024-11-02 12:37:01,685 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_handle_link_change [2024-11-02 12:37:01,685 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-02 12:37:01,685 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-02 12:37:01,685 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-02 12:37:01,685 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-02 12:37:01,685 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_writew_mac [2024-11-02 12:37:01,685 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_writew_mac [2024-11-02 12:37:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-02 12:37:01,687 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-02 12:37:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-02 12:37:01,687 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-02 12:37:01,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:37:01,688 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2024-11-02 12:37:01,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2024-11-02 12:37:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-02 12:37:01,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-02 12:37:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_remove [2024-11-02 12:37:01,689 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_remove [2024-11-02 12:37:01,689 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-02 12:37:01,690 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-02 12:37:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_open [2024-11-02 12:37:01,690 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_open [2024-11-02 12:37:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure phy_connect [2024-11-02 12:37:01,690 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_connect [2024-11-02 12:37:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-02 12:37:01,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-02 12:37:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2024-11-02 12:37:01,690 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2024-11-02 12:37:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:37:01,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-02 12:37:01,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-02 12:37:01,691 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2024-11-02 12:37:01,691 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2024-11-02 12:37:02,526 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:37:02,529 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:37:03,572 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-02 12:37:12,514 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-02 12:37:13,290 INFO L? ?]: Removed 1842 outVars from TransFormulas that were not future-live. [2024-11-02 12:37:13,291 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:37:14,795 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:37:14,795 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 12:37:14,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:14 BoogieIcfgContainer [2024-11-02 12:37:14,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:37:14,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:37:14,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:37:14,804 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:37:14,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:36:57" (1/3) ... [2024-11-02 12:37:14,805 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c161cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:14, skipping insertion in model container [2024-11-02 12:37:14,805 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:37:00" (2/3) ... [2024-11-02 12:37:14,806 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c161cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:37:14, skipping insertion in model container [2024-11-02 12:37:14,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:37:14" (3/3) ... [2024-11-02 12:37:14,807 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2024-11-02 12:37:14,828 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:37:14,829 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-02 12:37:14,961 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:37:14,972 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@54e8a3d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:37:14,973 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-11-02 12:37:14,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 1135 states, 697 states have (on average 1.302725968436155) internal successors, (908), 707 states have internal predecessors, (908), 369 states have call successors, (369), 67 states have call predecessors, (369), 66 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) [2024-11-02 12:37:15,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-02 12:37:15,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:15,012 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:15,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-11-02 12:37:15,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:15,020 INFO L85 PathProgramCache]: Analyzing trace with hash -641295025, now seen corresponding path program 1 times [2024-11-02 12:37:15,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:15,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17853812] [2024-11-02 12:37:15,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:15,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:19,533 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2024-11-02 12:37:19,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:19,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17853812] [2024-11-02 12:37:19,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17853812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:37:19,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:37:19,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:37:19,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555264207] [2024-11-02 12:37:19,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:37:19,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:37:19,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:19,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:37:19,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:37:19,581 INFO L87 Difference]: Start difference. First operand has 1135 states, 697 states have (on average 1.302725968436155) internal successors, (908), 707 states have internal predecessors, (908), 369 states have call successors, (369), 67 states have call predecessors, (369), 66 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-02 12:37:21,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:37:23,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:37:26,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []