./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ/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_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ --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 0.2.3-dev-9bd2c7f [2023-11-19 04:10:05,795 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:10:05,878 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:10:05,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:10:05,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:10:05,914 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:10:05,915 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:10:05,915 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:10:05,916 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:10:05,917 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:10:05,918 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:10:05,918 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:10:05,919 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:10:05,920 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:10:05,920 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:10:05,921 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:10:05,921 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:10:05,922 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:10:05,923 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:10:05,923 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:10:05,924 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:10:05,925 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:10:05,926 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:10:05,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:10:05,927 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:10:05,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:10:05,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:10:05,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:10:05,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:10:05,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:10:05,931 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:10:05,932 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:10:05,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:10:05,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:10:05,933 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:10:05,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:10:05,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:10:05,935 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:10:05,935 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:10:05,936 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:10:05,936 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:10:05,937 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:10:05,937 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_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbb6aba39a63540626ae26255eab93a5f2c0864f87ba11cb320579066e7aefd2 [2023-11-19 04:10:06,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:10:06,284 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:10:06,287 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:10:06,289 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:10:06,289 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:10:06,291 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2023-11-19 04:10:09,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:10:10,259 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:10:10,263 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2023-11-19 04:10:10,330 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ/data/c3c08c965/40651739ebde41fe85076397cdf3e9e1/FLAGd73177718 [2023-11-19 04:10:10,348 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ/data/c3c08c965/40651739ebde41fe85076397cdf3e9e1 [2023-11-19 04:10:10,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:10:10,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:10:10,365 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:10,365 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:10:10,371 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:10:10,372 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:10" (1/1) ... [2023-11-19 04:10:10,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d064bad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:10, skipping insertion in model container [2023-11-19 04:10:10,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:10:10" (1/1) ... [2023-11-19 04:10:10,567 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:10:13,274 WARN L240 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_95a147cb-5a9d-4d55-8123-4fc211fa1803/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305216,305229] [2023-11-19 04:10:13,279 WARN L240 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_95a147cb-5a9d-4d55-8123-4fc211fa1803/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305385,305398] [2023-11-19 04:10:13,280 WARN L240 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_95a147cb-5a9d-4d55-8123-4fc211fa1803/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305552,305565] [2023-11-19 04:10:13,281 WARN L240 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_95a147cb-5a9d-4d55-8123-4fc211fa1803/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305720,305733] [2023-11-19 04:10:13,303 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:13,363 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:10:13,546 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] [2023-11-19 04:10:13,547 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] [2023-11-19 04:10:13,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5195] [2023-11-19 04:10:13,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [5244] [2023-11-19 04:10:13,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5316] [2023-11-19 04:10:13,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5323] [2023-11-19 04:10:13,569 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] [2023-11-19 04:10:13,571 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5529] [2023-11-19 04:10:13,889 WARN L240 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_95a147cb-5a9d-4d55-8123-4fc211fa1803/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305216,305229] [2023-11-19 04:10:13,890 WARN L240 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_95a147cb-5a9d-4d55-8123-4fc211fa1803/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305385,305398] [2023-11-19 04:10:13,890 WARN L240 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_95a147cb-5a9d-4d55-8123-4fc211fa1803/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305552,305565] [2023-11-19 04:10:13,891 WARN L240 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_95a147cb-5a9d-4d55-8123-4fc211fa1803/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i[305720,305733] [2023-11-19 04:10:13,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:10:14,127 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:10:14,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:14 WrapperNode [2023-11-19 04:10:14,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:10:14,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:10:14,129 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:10:14,129 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:10:14,137 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:14" (1/1) ... [2023-11-19 04:10:14,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:14" (1/1) ... [2023-11-19 04:10:14,444 INFO L138 Inliner]: procedures = 411, calls = 2035, calls flagged for inlining = 211, calls inlined = 188, statements flattened = 4737 [2023-11-19 04:10:14,444 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:10:14,445 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:10:14,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:10:14,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:10:14,455 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:14" (1/1) ... [2023-11-19 04:10:14,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:14" (1/1) ... [2023-11-19 04:10:14,474 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:14" (1/1) ... [2023-11-19 04:10:14,475 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:14" (1/1) ... [2023-11-19 04:10:14,609 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:14" (1/1) ... [2023-11-19 04:10:14,641 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:14" (1/1) ... [2023-11-19 04:10:14,670 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:14" (1/1) ... [2023-11-19 04:10:14,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:14" (1/1) ... [2023-11-19 04:10:14,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:10:14,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:10:14,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:10:14,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:10:14,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:14" (1/1) ... [2023-11-19 04:10:14,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:10:14,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:10:14,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:10:14,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95a147cb-5a9d-4d55-8123-4fc211fa1803/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:10:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_probe [2023-11-19 04:10:14,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_probe [2023-11-19 04:10:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:10:14,874 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:10:14,874 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:10:14,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:10:14,875 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-19 04:10:14,875 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-19 04:10:14,875 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:10:14,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2023-11-19 04:10:14,875 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 04:10:14,876 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 04:10:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2023-11-19 04:10:14,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2023-11-19 04:10:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure __dnet_set_hwaddr [2023-11-19 04:10:14,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __dnet_set_hwaddr [2023-11-19 04:10:14,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:10:14,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:10:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-19 04:10:14,877 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-19 04:10:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-11-19 04:10:14,877 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-11-19 04:10:14,877 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:10:14,877 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:10:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:10:14,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:10:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:10:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 04:10:14,878 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 04:10:14,878 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:10:14,879 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:10:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:10:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2023-11-19 04:10:14,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2023-11-19 04:10:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:10:14,879 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:10:14,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:10:14,880 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 04:10:14,880 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 04:10:14,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:10:14,880 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:10:14,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:10:14,880 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_reset_hw [2023-11-19 04:10:14,881 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_reset_hw [2023-11-19 04:10:14,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:10:14,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2023-11-19 04:10:14,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:10:14,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:10:14,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:10:14,881 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-19 04:10:14,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-19 04:10:14,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-11-19 04:10:14,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-11-19 04:10:14,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:10:14,882 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-11-19 04:10:14,882 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-11-19 04:10:14,882 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:10:14,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:10:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:10:14,883 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:10:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:10:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:10:14,883 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:10:14,883 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:10:14,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:10:14,884 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 04:10:14,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 04:10:14,884 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:10:14,884 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:10:14,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 04:10:14,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 04:10:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-11-19 04:10:14,885 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-11-19 04:10:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 04:10:14,885 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 04:10:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 04:10:14,885 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 04:10:14,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:10:14,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:10:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 04:10:14,886 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 04:10:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2023-11-19 04:10:14,886 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2023-11-19 04:10:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:10:14,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:10:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:10:14,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:10:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2023-11-19 04:10:14,887 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2023-11-19 04:10:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:10:14,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2023-11-19 04:10:14,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_dnet [2023-11-19 04:10:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_dnet [2023-11-19 04:10:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-19 04:10:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-19 04:10:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_readw_mac [2023-11-19 04:10:14,888 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_readw_mac [2023-11-19 04:10:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:10:14,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:10:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:10:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:10:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:10:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 04:10:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 04:10:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-19 04:10:14,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-19 04:10:14,889 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:10:14,890 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:10:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:10:14,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:10:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-19 04:10:14,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-19 04:10:14,890 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_close [2023-11-19 04:10:14,890 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_close [2023-11-19 04:10:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2023-11-19 04:10:14,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2023-11-19 04:10:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_handle_link_change [2023-11-19 04:10:14,891 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_handle_link_change [2023-11-19 04:10:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-19 04:10:14,891 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-19 04:10:14,891 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:10:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:10:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_writew_mac [2023-11-19 04:10:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_writew_mac [2023-11-19 04:10:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 04:10:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 04:10:14,892 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:10:14,892 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:10:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:10:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 04:10:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 04:10:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:10:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:10:14,893 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_remove [2023-11-19 04:10:14,893 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_remove [2023-11-19 04:10:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-11-19 04:10:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-11-19 04:10:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_open [2023-11-19 04:10:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_open [2023-11-19 04:10:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure phy_connect [2023-11-19 04:10:14,894 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_connect [2023-11-19 04:10:14,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:10:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:10:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 04:10:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 04:10:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:10:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:10:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:10:14,895 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2023-11-19 04:10:14,895 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2023-11-19 04:10:15,553 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:10:15,558 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:10:16,621 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:10:21,692 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:10:21,808 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:10:23,375 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:10:23,375 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:10:23,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:23 BoogieIcfgContainer [2023-11-19 04:10:23,392 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:10:23,396 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:10:23,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:10:23,399 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:10:23,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:10:10" (1/3) ... [2023-11-19 04:10:23,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1b0de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:23, skipping insertion in model container [2023-11-19 04:10:23,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:10:14" (2/3) ... [2023-11-19 04:10:23,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1b0de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:10:23, skipping insertion in model container [2023-11-19 04:10:23,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:10:23" (3/3) ... [2023-11-19 04:10:23,404 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2023-11-19 04:10:23,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:10:23,428 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-19 04:10:23,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:10:23,548 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=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;@48b9725, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:10:23,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-19 04:10:23,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 1132 states, 694 states have (on average 1.3040345821325647) internal successors, (905), 707 states have internal predecessors, (905), 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) [2023-11-19 04:10:23,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-11-19 04:10:23,600 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:23,601 INFO L195 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] [2023-11-19 04:10:23,602 INFO L420 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)] === [2023-11-19 04:10:23,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:23,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1611627918, now seen corresponding path program 1 times [2023-11-19 04:10:23,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:23,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90630337] [2023-11-19 04:10:23,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:23,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:24,561 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-11-19 04:10:24,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:24,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90630337] [2023-11-19 04:10:24,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90630337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:24,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:24,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:10:24,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786569297] [2023-11-19 04:10:24,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:24,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:10:24,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:24,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:10:24,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:10:24,621 INFO L87 Difference]: Start difference. First operand has 1132 states, 694 states have (on average 1.3040345821325647) internal successors, (905), 707 states have internal predecessors, (905), 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) [2023-11-19 04:10:27,275 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 [] [2023-11-19 04:10:29,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:10:31,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:10:33,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:33,165 INFO L93 Difference]: Finished difference Result 3289 states and 4792 transitions. [2023-11-19 04:10:33,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:10:33,168 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 117 [2023-11-19 04:10:33,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:33,209 INFO L225 Difference]: With dead ends: 3289 [2023-11-19 04:10:33,209 INFO L226 Difference]: Without dead ends: 2166 [2023-11-19 04:10:33,222 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 [2023-11-19 04:10:33,226 INFO L413 NwaCegarLoop]: 1402 mSDtfsCounter, 1541 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 2764 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:33,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 2764 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 484 Invalid, 3 Unknown, 0 Unchecked, 8.2s Time] [2023-11-19 04:10:33,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2166 states. [2023-11-19 04:10:33,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2166 to 2162. [2023-11-19 04:10:33,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2162 states, 1341 states have (on average 1.2975391498881432) internal successors, (1740), 1365 states have internal predecessors, (1740), 689 states have call successors, (689), 130 states have call predecessors, (689), 129 states have return successors, (686), 682 states have call predecessors, (686), 686 states have call successors, (686) [2023-11-19 04:10:33,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2162 states to 2162 states and 3115 transitions. [2023-11-19 04:10:33,478 INFO L78 Accepts]: Start accepts. Automaton has 2162 states and 3115 transitions. Word has length 117 [2023-11-19 04:10:33,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:33,479 INFO L495 AbstractCegarLoop]: Abstraction has 2162 states and 3115 transitions. [2023-11-19 04:10:33,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2023-11-19 04:10:33,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2162 states and 3115 transitions. [2023-11-19 04:10:33,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-19 04:10:33,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:33,484 INFO L195 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, 1, 1] [2023-11-19 04:10:33,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:10:33,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_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)] === [2023-11-19 04:10:33,485 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:33,486 INFO L85 PathProgramCache]: Analyzing trace with hash 301855033, now seen corresponding path program 1 times [2023-11-19 04:10:33,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:33,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915583349] [2023-11-19 04:10:33,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:33,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:33,875 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-11-19 04:10:33,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:33,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915583349] [2023-11-19 04:10:33,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915583349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:33,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:33,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:10:33,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79634543] [2023-11-19 04:10:33,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:33,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:10:33,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:33,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:10:33,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:10:33,885 INFO L87 Difference]: Start difference. First operand 2162 states and 3115 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-19 04:10:36,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:10:38,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:10:40,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:10:42,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:42,455 INFO L93 Difference]: Finished difference Result 6282 states and 9139 transitions. [2023-11-19 04:10:42,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:10:42,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) Word has length 119 [2023-11-19 04:10:42,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:42,503 INFO L225 Difference]: With dead ends: 6282 [2023-11-19 04:10:42,503 INFO L226 Difference]: Without dead ends: 4141 [2023-11-19 04:10:42,516 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 [2023-11-19 04:10:42,517 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 1481 mSDsluCounter, 1347 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1481 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:42,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1481 Valid, 2868 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 517 Invalid, 3 Unknown, 0 Unchecked, 8.3s Time] [2023-11-19 04:10:42,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4141 states. [2023-11-19 04:10:42,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4141 to 4112. [2023-11-19 04:10:42,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4112 states, 2566 states have (on average 1.3012470771628994) internal successors, (3339), 2616 states have internal predecessors, (3339), 1288 states have call successors, (1288), 258 states have call predecessors, (1288), 255 states have return successors, (1385), 1267 states have call predecessors, (1385), 1285 states have call successors, (1385) [2023-11-19 04:10:42,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4112 states to 4112 states and 6012 transitions. [2023-11-19 04:10:42,828 INFO L78 Accepts]: Start accepts. Automaton has 4112 states and 6012 transitions. Word has length 119 [2023-11-19 04:10:42,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:42,832 INFO L495 AbstractCegarLoop]: Abstraction has 4112 states and 6012 transitions. [2023-11-19 04:10:42,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-19 04:10:42,833 INFO L276 IsEmpty]: Start isEmpty. Operand 4112 states and 6012 transitions. [2023-11-19 04:10:42,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-19 04:10:42,839 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:42,839 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:42,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:10:42,840 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_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)] === [2023-11-19 04:10:42,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:42,841 INFO L85 PathProgramCache]: Analyzing trace with hash -1940641999, now seen corresponding path program 1 times [2023-11-19 04:10:42,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:42,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921838504] [2023-11-19 04:10:42,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:42,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:43,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:43,296 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-11-19 04:10:43,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:43,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921838504] [2023-11-19 04:10:43,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921838504] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:43,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:43,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:10:43,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637473480] [2023-11-19 04:10:43,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:43,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:10:43,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:43,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:10:43,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:10:43,300 INFO L87 Difference]: Start difference. First operand 4112 states and 6012 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 04:10:45,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:10:48,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:10:50,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:10:52,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:52,256 INFO L93 Difference]: Finished difference Result 11730 states and 17040 transitions. [2023-11-19 04:10:52,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:10:52,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 127 [2023-11-19 04:10:52,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:52,325 INFO L225 Difference]: With dead ends: 11730 [2023-11-19 04:10:52,326 INFO L226 Difference]: Without dead ends: 7639 [2023-11-19 04:10:52,351 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 [2023-11-19 04:10:52,352 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 1328 mSDsluCounter, 1310 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 29 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1328 SdHoareTripleChecker+Valid, 3053 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:52,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1328 Valid, 3053 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 632 Invalid, 3 Unknown, 0 Unchecked, 8.5s Time] [2023-11-19 04:10:52,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7639 states. [2023-11-19 04:10:52,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7639 to 7606. [2023-11-19 04:10:52,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7606 states, 4706 states have (on average 1.2756056098597535) internal successors, (6003), 4812 states have internal predecessors, (6003), 2400 states have call successors, (2400), 502 states have call predecessors, (2400), 497 states have return successors, (2503), 2351 states have call predecessors, (2503), 2397 states have call successors, (2503) [2023-11-19 04:10:52,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7606 states to 7606 states and 10906 transitions. [2023-11-19 04:10:52,956 INFO L78 Accepts]: Start accepts. Automaton has 7606 states and 10906 transitions. Word has length 127 [2023-11-19 04:10:52,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:10:52,957 INFO L495 AbstractCegarLoop]: Abstraction has 7606 states and 10906 transitions. [2023-11-19 04:10:52,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 04:10:52,958 INFO L276 IsEmpty]: Start isEmpty. Operand 7606 states and 10906 transitions. [2023-11-19 04:10:52,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-19 04:10:52,961 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:10:52,962 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:10:52,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:10:52,962 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_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)] === [2023-11-19 04:10:52,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:10:52,963 INFO L85 PathProgramCache]: Analyzing trace with hash -114782084, now seen corresponding path program 1 times [2023-11-19 04:10:52,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:10:52,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702190124] [2023-11-19 04:10:52,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:10:52,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:10:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:10:53,223 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2023-11-19 04:10:53,223 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:10:53,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702190124] [2023-11-19 04:10:53,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702190124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:10:53,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:10:53,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:10:53,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073047452] [2023-11-19 04:10:53,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:10:53,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:10:53,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:10:53,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:10:53,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:10:53,226 INFO L87 Difference]: Start difference. First operand 7606 states and 10906 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 04:10:56,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:10:58,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:10:59,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:10:59,790 INFO L93 Difference]: Finished difference Result 20282 states and 29190 transitions. [2023-11-19 04:10:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:10:59,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 135 [2023-11-19 04:10:59,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:10:59,916 INFO L225 Difference]: With dead ends: 20282 [2023-11-19 04:10:59,916 INFO L226 Difference]: Without dead ends: 12697 [2023-11-19 04:10:59,957 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 [2023-11-19 04:10:59,958 INFO L413 NwaCegarLoop]: 1375 mSDtfsCounter, 1159 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:10:59,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 2699 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 514 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2023-11-19 04:10:59,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12697 states.