./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_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_ecee8002-7ef7-45af-9647-d6c85645482e/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecee8002-7ef7-45af-9647-d6c85645482e/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_ecee8002-7ef7-45af-9647-d6c85645482e/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecee8002-7ef7-45af-9647-d6c85645482e/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecee8002-7ef7-45af-9647-d6c85645482e/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_ecee8002-7ef7-45af-9647-d6c85645482e/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 384d76f2b579c3776890746933030ac5fcfc9487f32fbc530ea50ee4dc8551b1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:32:06,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:32:07,104 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecee8002-7ef7-45af-9647-d6c85645482e/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:32:07,108 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:32:07,109 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:32:07,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:32:07,157 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:32:07,158 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:32:07,159 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:32:07,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:32:07,165 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:32:07,166 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:32:07,166 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:32:07,168 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:32:07,168 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:32:07,169 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:32:07,169 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:32:07,170 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:32:07,170 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:32:07,172 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:32:07,172 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:32:07,173 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:32:07,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:32:07,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:32:07,175 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:32:07,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:32:07,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:32:07,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:32:07,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:32:07,177 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:32:07,178 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:32:07,178 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:32:07,178 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:32:07,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:32:07,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:32:07,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:32:07,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:32:07,179 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:32:07,180 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:32:07,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:32:07,180 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:32:07,180 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:32:07,181 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:32:07,181 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:32:07,182 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_ecee8002-7ef7-45af-9647-d6c85645482e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecee8002-7ef7-45af-9647-d6c85645482e/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 384d76f2b579c3776890746933030ac5fcfc9487f32fbc530ea50ee4dc8551b1 [2023-11-23 20:32:07,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:32:07,549 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:32:07,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:32:07,553 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:32:07,553 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:32:07,555 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecee8002-7ef7-45af-9647-d6c85645482e/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2023-11-23 20:32:10,696 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:32:11,334 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:32:11,335 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecee8002-7ef7-45af-9647-d6c85645482e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2023-11-23 20:32:11,389 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecee8002-7ef7-45af-9647-d6c85645482e/bin/utaipan-verify-mE87zJ7Ire/data/ac65aaaf2/720cdf622775450d899f38817ed13e44/FLAGfd30f9ca5 [2023-11-23 20:32:11,402 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecee8002-7ef7-45af-9647-d6c85645482e/bin/utaipan-verify-mE87zJ7Ire/data/ac65aaaf2/720cdf622775450d899f38817ed13e44 [2023-11-23 20:32:11,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:32:11,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:32:11,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:32:11,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:32:11,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:32:11,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:11" (1/1) ... [2023-11-23 20:32:11,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77e7b321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:11, skipping insertion in model container [2023-11-23 20:32:11,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:32:11" (1/1) ... [2023-11-23 20:32:11,561 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:32:13,835 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_ecee8002-7ef7-45af-9647-d6c85645482e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i[269359,269372] [2023-11-23 20:32:13,873 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:32:13,939 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:32:14,133 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"); [5328] [2023-11-23 20:32:14,135 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)); [5335] [2023-11-23 20:32:14,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5342] [2023-11-23 20:32:14,138 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/e5e3e20/linux-drivers-clk1/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5382-5383] [2023-11-23 20:32:14,138 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"); [5388-5390] [2023-11-23 20:32:14,376 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_ecee8002-7ef7-45af-9647-d6c85645482e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i[269359,269372] [2023-11-23 20:32:14,382 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:32:14,590 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:32:14,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14 WrapperNode [2023-11-23 20:32:14,591 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:32:14,592 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:32:14,592 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:32:14,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:32:14,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,705 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,929 INFO L138 Inliner]: procedures = 306, calls = 1495, calls flagged for inlining = 184, calls inlined = 172, statements flattened = 4581 [2023-11-23 20:32:14,930 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:32:14,931 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:32:14,931 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:32:14,931 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:32:14,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:14,983 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:15,108 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:15,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:15,157 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:15,174 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:15,337 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:32:15,339 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:32:15,339 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:32:15,339 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:32:15,340 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (1/1) ... [2023-11-23 20:32:15,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:32:15,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecee8002-7ef7-45af-9647-d6c85645482e/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:32:15,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecee8002-7ef7-45af-9647-d6c85645482e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:32:15,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ecee8002-7ef7-45af-9647-d6c85645482e/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:32:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:32:15,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:32:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:32:15,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:32:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:32:15,414 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:32:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-23 20:32:15,414 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-23 20:32:15,414 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2023-11-23 20:32:15,414 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2023-11-23 20:32:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:32:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:32:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2023-11-23 20:32:15,415 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2023-11-23 20:32:15,415 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-23 20:32:15,416 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-23 20:32:15,416 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2023-11-23 20:32:15,417 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2023-11-23 20:32:15,417 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 20:32:15,417 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 20:32:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2023-11-23 20:32:15,418 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2023-11-23 20:32:15,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2023-11-23 20:32:15,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2023-11-23 20:32:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2023-11-23 20:32:15,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2023-11-23 20:32:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2023-11-23 20:32:15,419 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2023-11-23 20:32:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:32:15,419 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 20:32:15,420 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 20:32:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:32:15,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 20:32:15,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 20:32:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2023-11-23 20:32:15,421 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2023-11-23 20:32:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2023-11-23 20:32:15,421 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2023-11-23 20:32:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 20:32:15,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 20:32:15,421 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2023-11-23 20:32:15,422 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2023-11-23 20:32:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2023-11-23 20:32:15,422 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2023-11-23 20:32:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:32:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:32:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2023-11-23 20:32:15,422 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2023-11-23 20:32:15,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2023-11-23 20:32:15,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2023-11-23 20:32:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 20:32:15,423 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 20:32:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 20:32:15,423 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 20:32:15,423 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-23 20:32:15,423 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-23 20:32:15,424 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-23 20:32:15,424 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-23 20:32:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2023-11-23 20:32:15,425 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2023-11-23 20:32:15,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 20:32:15,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 20:32:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-23 20:32:15,426 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-23 20:32:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2023-11-23 20:32:15,426 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2023-11-23 20:32:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-23 20:32:15,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-23 20:32:15,426 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-23 20:32:15,426 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-23 20:32:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:32:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2023-11-23 20:32:15,427 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2023-11-23 20:32:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-23 20:32:15,427 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-23 20:32:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2023-11-23 20:32:15,427 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2023-11-23 20:32:15,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:32:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 20:32:15,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 20:32:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 20:32:15,428 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 20:32:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2023-11-23 20:32:15,428 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2023-11-23 20:32:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2023-11-23 20:32:15,428 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2023-11-23 20:32:15,428 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-23 20:32:15,429 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-23 20:32:15,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:32:15,429 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2023-11-23 20:32:15,429 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2023-11-23 20:32:15,429 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2023-11-23 20:32:15,429 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2023-11-23 20:32:15,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:32:15,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:32:15,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-23 20:32:15,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-23 20:32:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 20:32:15,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 20:32:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2023-11-23 20:32:15,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2023-11-23 20:32:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2023-11-23 20:32:15,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2023-11-23 20:32:15,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:32:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2023-11-23 20:32:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2023-11-23 20:32:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2023-11-23 20:32:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2023-11-23 20:32:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:32:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:32:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2023-11-23 20:32:15,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2023-11-23 20:32:15,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:32:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-23 20:32:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-23 20:32:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 20:32:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 20:32:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2023-11-23 20:32:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2023-11-23 20:32:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2023-11-23 20:32:15,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2023-11-23 20:32:15,432 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2023-11-23 20:32:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2023-11-23 20:32:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:32:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 20:32:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 20:32:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-23 20:32:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-23 20:32:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:32:15,433 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2023-11-23 20:32:15,433 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2023-11-23 20:32:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:32:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 20:32:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:32:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:32:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2023-11-23 20:32:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2023-11-23 20:32:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-23 20:32:15,434 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-23 20:32:15,434 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2023-11-23 20:32:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2023-11-23 20:32:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 20:32:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 20:32:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2023-11-23 20:32:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2023-11-23 20:32:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-23 20:32:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-23 20:32:15,435 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 20:32:15,435 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 20:32:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2023-11-23 20:32:15,436 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2023-11-23 20:32:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2023-11-23 20:32:15,436 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2023-11-23 20:32:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:32:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2023-11-23 20:32:15,436 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2023-11-23 20:32:15,436 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2023-11-23 20:32:15,438 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2023-11-23 20:32:15,438 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-23 20:32:15,438 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-23 20:32:15,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 20:32:15,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 20:32:15,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:32:15,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:32:15,439 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 20:32:15,439 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 20:32:16,085 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:32:16,091 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:32:16,681 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:32:24,318 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 20:32:25,427 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:32:27,778 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:32:27,778 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:32:27,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:27 BoogieIcfgContainer [2023-11-23 20:32:27,781 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:32:27,783 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:32:27,783 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:32:27,787 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:32:27,787 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:32:11" (1/3) ... [2023-11-23 20:32:27,788 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d76399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:27, skipping insertion in model container [2023-11-23 20:32:27,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:32:14" (2/3) ... [2023-11-23 20:32:27,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d76399 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:32:27, skipping insertion in model container [2023-11-23 20:32:27,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:32:27" (3/3) ... [2023-11-23 20:32:27,791 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2023-11-23 20:32:27,815 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:32:27,815 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:32:27,968 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:32:27,975 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;@2aeb3197, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:32:27,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:32:27,987 INFO L276 IsEmpty]: Start isEmpty. Operand has 1091 states, 654 states have (on average 1.3226299694189603) internal successors, (865), 674 states have internal predecessors, (865), 362 states have call successors, (362), 75 states have call predecessors, (362), 74 states have return successors, (353), 346 states have call predecessors, (353), 353 states have call successors, (353) [2023-11-23 20:32:28,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-23 20:32:28,029 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:28,031 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 20:32:28,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:32:28,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:28,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1837468860, now seen corresponding path program 1 times [2023-11-23 20:32:28,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:32:28,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039035473] [2023-11-23 20:32:28,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:28,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:32:36,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:37,546 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 20:32:37,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:32:37,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039035473] [2023-11-23 20:32:37,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039035473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:32:37,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:32:37,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:32:37,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100181026] [2023-11-23 20:32:37,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:32:37,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:32:37,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:32:37,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:32:37,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:32:37,601 INFO L87 Difference]: Start difference. First operand has 1091 states, 654 states have (on average 1.3226299694189603) internal successors, (865), 674 states have internal predecessors, (865), 362 states have call successors, (362), 75 states have call predecessors, (362), 74 states have return successors, (353), 346 states have call predecessors, (353), 353 states have call successors, (353) 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 20:32:39,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:32:41,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:32:47,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:32:47,251 INFO L93 Difference]: Finished difference Result 3150 states and 4577 transitions. [2023-11-23 20:32:47,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:32:47,256 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, (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) Word has length 134 [2023-11-23 20:32:47,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:32:47,327 INFO L225 Difference]: With dead ends: 3150 [2023-11-23 20:32:47,328 INFO L226 Difference]: Without dead ends: 2069 [2023-11-23 20:32:47,345 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 20:32:47,349 INFO L413 NwaCegarLoop]: 1322 mSDtfsCounter, 1473 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1473 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-23 20:32:47,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1473 Valid, 2598 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 538 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2023-11-23 20:32:47,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2069 states. [2023-11-23 20:32:47,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2069 to 2069. [2023-11-23 20:32:47,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 1253 states have (on average 1.315243415802075) internal successors, (1648), 1294 states have internal predecessors, (1648), 671 states have call successors, (671), 145 states have call predecessors, (671), 144 states have return successors, (667), 653 states have call predecessors, (667), 667 states have call successors, (667) [2023-11-23 20:32:47,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2986 transitions. [2023-11-23 20:32:47,653 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2986 transitions. Word has length 134 [2023-11-23 20:32:47,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:32:47,655 INFO L495 AbstractCegarLoop]: Abstraction has 2069 states and 2986 transitions. [2023-11-23 20:32:47,655 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, (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 20:32:47,655 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2986 transitions. [2023-11-23 20:32:47,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-23 20:32:47,678 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:32:47,678 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:32:47,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:32:47,679 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:32:47,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:32:47,680 INFO L85 PathProgramCache]: Analyzing trace with hash -437161638, now seen corresponding path program 1 times [2023-11-23 20:32:47,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:32:47,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111328056] [2023-11-23 20:32:47,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:32:47,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:32:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:32:57,243 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2023-11-23 20:32:57,243 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:32:57,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111328056] [2023-11-23 20:32:57,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111328056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:32:57,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:32:57,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:32:57,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063819330] [2023-11-23 20:32:57,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:32:57,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 20:32:57,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:32:57,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 20:32:57,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 20:32:57,249 INFO L87 Difference]: Start difference. First operand 2069 states and 2986 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-23 20:32:59,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:33:01,594 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 []