./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-mutex_drivers-net-can-mcp251x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire --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 34736e16fed7ff8cc88604084fa777d707e75948c95ce657a43a86ad92782d71 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:19:44,087 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:19:44,171 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:19:44,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:19:44,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:19:44,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:19:44,235 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:19:44,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:19:44,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:19:44,241 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:19:44,242 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:19:44,243 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:19:44,243 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:19:44,245 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:19:44,246 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:19:44,246 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:19:44,246 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:19:44,247 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:19:44,247 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:19:44,248 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:19:44,249 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:19:44,250 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:19:44,251 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:19:44,251 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:19:44,252 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:19:44,252 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:19:44,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:19:44,253 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:19:44,253 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:19:44,254 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:19:44,255 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:19:44,255 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:19:44,256 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:19:44,256 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:19:44,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:44,263 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:19:44,263 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:19:44,263 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:19:44,264 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:19:44,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:19:44,264 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:19:44,265 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:19:44,265 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:19:44,265 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:19:44,266 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_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34736e16fed7ff8cc88604084fa777d707e75948c95ce657a43a86ad92782d71 [2023-11-23 21:19:44,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:19:44,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:19:44,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:19:44,641 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:19:44,641 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:19:44,643 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2023-11-23 21:19:47,699 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:19:48,350 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:19:48,351 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2023-11-23 21:19:48,406 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire/data/67ed4005d/f5a935b0acb54cf899131fdd3c1c234f/FLAGd8a357790 [2023-11-23 21:19:48,424 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire/data/67ed4005d/f5a935b0acb54cf899131fdd3c1c234f [2023-11-23 21:19:48,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:19:48,434 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:19:48,438 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:48,439 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:19:48,444 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:19:48,445 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:48" (1/1) ... [2023-11-23 21:19:48,446 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e948426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:48, skipping insertion in model container [2023-11-23 21:19:48,446 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:19:48" (1/1) ... [2023-11-23 21:19:48,611 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:19:51,106 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_13590711-98bc-43ef-81ff-17cf694e976b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278128,278141] [2023-11-23 21:19:51,110 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_13590711-98bc-43ef-81ff-17cf694e976b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278294,278307] [2023-11-23 21:19:51,112 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_13590711-98bc-43ef-81ff-17cf694e976b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278458,278471] [2023-11-23 21:19:51,113 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_13590711-98bc-43ef-81ff-17cf694e976b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278623,278636] [2023-11-23 21:19:51,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:51,193 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:19:51,340 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"); [5334] [2023-11-23 21:19:51,343 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)); [5341] [2023-11-23 21:19:51,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5348] [2023-11-23 21:19:51,348 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 *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/d4e00c1/linux-kernel-locking-mutex/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5388-5389] [2023-11-23 21:19:51,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5394-5396] [2023-11-23 21:19:51,571 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_13590711-98bc-43ef-81ff-17cf694e976b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278128,278141] [2023-11-23 21:19:51,571 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_13590711-98bc-43ef-81ff-17cf694e976b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278294,278307] [2023-11-23 21:19:51,572 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_13590711-98bc-43ef-81ff-17cf694e976b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278458,278471] [2023-11-23 21:19:51,572 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_13590711-98bc-43ef-81ff-17cf694e976b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278623,278636] [2023-11-23 21:19:51,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:19:51,732 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:19:51,732 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:51 WrapperNode [2023-11-23 21:19:51,733 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:19:51,734 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:51,734 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:19:51,734 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:19:51,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:51" (1/1) ... [2023-11-23 21:19:51,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:51" (1/1) ... [2023-11-23 21:19:52,070 INFO L138 Inliner]: procedures = 340, calls = 1551, calls flagged for inlining = 199, calls inlined = 180, statements flattened = 4621 [2023-11-23 21:19:52,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:19:52,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:19:52,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:19:52,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:19:52,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:51" (1/1) ... [2023-11-23 21:19:52,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:51" (1/1) ... [2023-11-23 21:19:52,122 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:51" (1/1) ... [2023-11-23 21:19:52,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:51" (1/1) ... [2023-11-23 21:19:52,235 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:51" (1/1) ... [2023-11-23 21:19:52,255 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:51" (1/1) ... [2023-11-23 21:19:52,279 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:51" (1/1) ... [2023-11-23 21:19:52,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:51" (1/1) ... [2023-11-23 21:19:52,343 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:19:52,344 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:19:52,344 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:19:52,345 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:19:52,345 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:51" (1/1) ... [2023-11-23 21:19:52,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:19:52,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:19:52,379 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:19:52,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13590711-98bc-43ef-81ff-17cf694e976b/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:19:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:19:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:19:52,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:19:52,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:19:52,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:19:52,430 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:19:52,431 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 21:19:52,431 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 21:19:52,431 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2023-11-23 21:19:52,432 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2023-11-23 21:19:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:19:52,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:19:52,432 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2023-11-23 21:19:52,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2023-11-23 21:19:52,433 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 21:19:52,434 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 21:19:52,434 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2023-11-23 21:19:52,434 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2023-11-23 21:19:52,436 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2023-11-23 21:19:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2023-11-23 21:19:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2023-11-23 21:19:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2023-11-23 21:19:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2023-11-23 21:19:52,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2023-11-23 21:19:52,437 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2023-11-23 21:19:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2023-11-23 21:19:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:19:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:19:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:19:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:19:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 21:19:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 21:19:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2023-11-23 21:19:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2023-11-23 21:19:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2023-11-23 21:19:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2023-11-23 21:19:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:19:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:19:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-23 21:19:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2023-11-23 21:19:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2023-11-23 21:19:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2023-11-23 21:19:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2023-11-23 21:19:52,441 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2023-11-23 21:19:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:19:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:19:52,441 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2023-11-23 21:19:52,442 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2023-11-23 21:19:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2023-11-23 21:19:52,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2023-11-23 21:19:52,442 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:19:52,443 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:19:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 21:19:52,444 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 21:19:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 21:19:52,444 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 21:19:52,444 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2023-11-23 21:19:52,445 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2023-11-23 21:19:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 21:19:52,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 21:19:52,445 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-23 21:19:52,445 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-23 21:19:52,446 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2023-11-23 21:19:52,446 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2023-11-23 21:19:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2023-11-23 21:19:52,447 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2023-11-23 21:19:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-23 21:19:52,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-23 21:19:52,447 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-23 21:19:52,447 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-23 21:19:52,448 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2023-11-23 21:19:52,448 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2023-11-23 21:19:52,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:19:52,448 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2023-11-23 21:19:52,448 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2023-11-23 21:19:52,449 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 21:19:52,449 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 21:19:52,449 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2023-11-23 21:19:52,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2023-11-23 21:19:52,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:19:52,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 21:19:52,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 21:19:52,450 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 21:19:52,451 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 21:19:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2023-11-23 21:19:52,451 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2023-11-23 21:19:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2023-11-23 21:19:52,451 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2023-11-23 21:19:52,451 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-23 21:19:52,452 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-23 21:19:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:19:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-23 21:19:52,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2023-11-23 21:19:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2023-11-23 21:19:52,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2023-11-23 21:19:52,452 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2023-11-23 21:19:52,453 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2023-11-23 21:19:52,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:19:52,453 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:19:52,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 21:19:52,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 21:19:52,454 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2023-11-23 21:19:52,516 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2023-11-23 21:19:52,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-23 21:19:52,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2023-11-23 21:19:52,517 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2023-11-23 21:19:52,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2023-11-23 21:19:52,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:19:52,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mcp_lock_of_mcp251x_priv [2023-11-23 21:19:52,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mcp_lock_of_mcp251x_priv [2023-11-23 21:19:52,517 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2023-11-23 21:19:52,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2023-11-23 21:19:52,517 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2023-11-23 21:19:52,517 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2023-11-23 21:19:52,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mcp_lock_of_mcp251x_priv [2023-11-23 21:19:52,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mcp_lock_of_mcp251x_priv [2023-11-23 21:19:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:19:52,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:19:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2023-11-23 21:19:52,518 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2023-11-23 21:19:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:19:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 21:19:52,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 21:19:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 21:19:52,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 21:19:52,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2023-11-23 21:19:52,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2023-11-23 21:19:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2023-11-23 21:19:52,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2023-11-23 21:19:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2023-11-23 21:19:52,519 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2023-11-23 21:19:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:19:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 21:19:52,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 21:19:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 21:19:52,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 21:19:52,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:19:52,520 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2023-11-23 21:19:52,520 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2023-11-23 21:19:52,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:19:52,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:19:52,520 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:19:52,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:19:52,520 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2023-11-23 21:19:52,520 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2023-11-23 21:19:52,520 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 21:19:52,521 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 21:19:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2023-11-23 21:19:52,521 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2023-11-23 21:19:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 21:19:52,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 21:19:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2023-11-23 21:19:52,521 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2023-11-23 21:19:52,521 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-23 21:19:52,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-23 21:19:52,522 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:19:52,522 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:19:52,522 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2023-11-23 21:19:52,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2023-11-23 21:19:52,522 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2023-11-23 21:19:52,522 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2023-11-23 21:19:52,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:19:52,523 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2023-11-23 21:19:52,523 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2023-11-23 21:19:52,523 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2023-11-23 21:19:52,523 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2023-11-23 21:19:52,523 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-23 21:19:52,523 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-23 21:19:52,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 21:19:52,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 21:19:52,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:19:52,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:19:52,524 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:19:52,524 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:19:53,252 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:19:53,257 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:19:53,917 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:20:00,685 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 21:20:02,389 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:20:05,190 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:20:05,191 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:20:05,193 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:20:05 BoogieIcfgContainer [2023-11-23 21:20:05,193 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:20:05,197 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:20:05,197 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:20:05,201 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:20:05,201 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:19:48" (1/3) ... [2023-11-23 21:20:05,203 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116553c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:20:05, skipping insertion in model container [2023-11-23 21:20:05,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:19:51" (2/3) ... [2023-11-23 21:20:05,204 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116553c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:20:05, skipping insertion in model container [2023-11-23 21:20:05,204 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:20:05" (3/3) ... [2023-11-23 21:20:05,207 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2023-11-23 21:20:05,229 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:20:05,230 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-11-23 21:20:05,341 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:20:05,349 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;@6072f3f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:20:05,351 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-11-23 21:20:05,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 1130 states, 680 states have (on average 1.3220588235294117) internal successors, (899), 703 states have internal predecessors, (899), 369 states have call successors, (369), 79 states have call predecessors, (369), 78 states have return successors, (360), 354 states have call predecessors, (360), 360 states have call successors, (360) [2023-11-23 21:20:05,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-23 21:20:05,395 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:20:05,396 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:20:05,396 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:20:05,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:20:05,402 INFO L85 PathProgramCache]: Analyzing trace with hash 106466393, now seen corresponding path program 1 times [2023-11-23 21:20:05,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:20:05,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202040623] [2023-11-23 21:20:05,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:05,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:20:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:20:15,913 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-11-23 21:20:15,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:20:15,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202040623] [2023-11-23 21:20:15,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202040623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:20:15,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:20:15,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:20:15,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479570206] [2023-11-23 21:20:15,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:20:15,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:20:15,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:20:15,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:20:15,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:20:15,970 INFO L87 Difference]: Start difference. First operand has 1130 states, 680 states have (on average 1.3220588235294117) internal successors, (899), 703 states have internal predecessors, (899), 369 states have call successors, (369), 79 states have call predecessors, (369), 78 states have return successors, (360), 354 states have call predecessors, (360), 360 states have call successors, (360) Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-23 21:20:18,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:20:20,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:20:25,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:20:25,895 INFO L93 Difference]: Finished difference Result 3210 states and 4751 transitions. [2023-11-23 21:20:25,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:20:25,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 131 [2023-11-23 21:20:25,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:20:25,975 INFO L225 Difference]: With dead ends: 3210 [2023-11-23 21:20:25,975 INFO L226 Difference]: Without dead ends: 2085 [2023-11-23 21:20:25,995 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 [2023-11-23 21:20:26,000 INFO L413 NwaCegarLoop]: 1377 mSDtfsCounter, 1469 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1469 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:20:26,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1469 Valid, 2686 Invalid, 539 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 531 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2023-11-23 21:20:26,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2085 states. [2023-11-23 21:20:26,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2085 to 2066. [2023-11-23 21:20:26,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2066 states, 1254 states have (on average 1.3165869218500796) internal successors, (1651), 1299 states have internal predecessors, (1651), 660 states have call successors, (660), 153 states have call predecessors, (660), 149 states have return successors, (698), 636 states have call predecessors, (698), 656 states have call successors, (698) [2023-11-23 21:20:26,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 3009 transitions. [2023-11-23 21:20:26,317 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 3009 transitions. Word has length 131 [2023-11-23 21:20:26,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:20:26,318 INFO L495 AbstractCegarLoop]: Abstraction has 2066 states and 3009 transitions. [2023-11-23 21:20:26,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-23 21:20:26,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 3009 transitions. [2023-11-23 21:20:26,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-23 21:20:26,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:20:26,339 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:20:26,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:20:26,340 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2023-11-23 21:20:26,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:20:26,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1642190740, now seen corresponding path program 1 times [2023-11-23 21:20:26,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:20:26,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929642618] [2023-11-23 21:20:26,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:20:26,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:20:33,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:20:34,199 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-23 21:20:34,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:20:34,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929642618] [2023-11-23 21:20:34,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929642618] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:20:34,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:20:34,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:20:34,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125596482] [2023-11-23 21:20:34,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:20:34,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:20:34,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:20:34,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:20:34,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:20:34,208 INFO L87 Difference]: Start difference. First operand 2066 states and 3009 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-11-23 21:20:36,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:20:38,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []