./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91/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_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-25 00:02:46,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:02:46,481 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-25 00:02:46,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:02:46,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:02:46,536 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:02:46,537 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:02:46,538 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:02:46,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:02:46,544 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:02:46,544 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:02:46,545 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:02:46,546 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:02:46,548 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:02:46,548 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:02:46,548 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:02:46,549 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:02:46,549 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:02:46,550 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:02:46,550 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:02:46,551 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:02:46,551 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:02:46,552 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:02:46,553 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:02:46,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:02:46,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:02:46,554 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:02:46,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:02:46,555 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:02:46,555 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:02:46,557 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:02:46,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:02:46,557 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-25 00:02:46,558 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:02:46,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:02:46,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:02:46,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:02:46,559 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:02:46,560 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:02:46,560 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:02:46,560 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:02:46,560 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:02:46,561 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:02:46,561 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:02:46,562 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_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 384d76f2b579c3776890746933030ac5fcfc9487f32fbc530ea50ee4dc8551b1 [2023-11-25 00:02:46,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:02:46,909 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:02:46,911 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:02:46,912 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:02:46,913 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:02:46,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2023-11-25 00:02:50,044 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:02:50,704 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:02:50,704 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2023-11-25 00:02:50,756 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91/data/63520c5f9/9fa2a97c7b6e4037a24e5e5e78224978/FLAG09d220240 [2023-11-25 00:02:50,772 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91/data/63520c5f9/9fa2a97c7b6e4037a24e5e5e78224978 [2023-11-25 00:02:50,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:02:50,777 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:02:50,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:50,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:02:50,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:02:50,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:50" (1/1) ... [2023-11-25 00:02:50,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ce15d72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:50, skipping insertion in model container [2023-11-25 00:02:50,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:02:50" (1/1) ... [2023-11-25 00:02:50,991 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:02:53,180 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_a94a84f3-1233-4c91-a743-6083306938f6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i[269359,269372] [2023-11-25 00:02:53,203 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:53,265 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:02:53,387 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] [2023-11-25 00:02:53,390 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] [2023-11-25 00:02:53,390 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5342] [2023-11-25 00:02:53,397 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] [2023-11-25 00:02:53,398 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] [2023-11-25 00:02:53,719 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_a94a84f3-1233-4c91-a743-6083306938f6/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i[269359,269372] [2023-11-25 00:02:53,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:02:53,898 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:02:53,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53 WrapperNode [2023-11-25 00:02:53,899 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:02:53,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:53,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:02:53,900 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:02:53,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53" (1/1) ... [2023-11-25 00:02:54,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53" (1/1) ... [2023-11-25 00:02:54,231 INFO L138 Inliner]: procedures = 306, calls = 1495, calls flagged for inlining = 184, calls inlined = 172, statements flattened = 4605 [2023-11-25 00:02:54,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:02:54,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:02:54,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:02:54,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:02:54,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53" (1/1) ... [2023-11-25 00:02:54,244 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53" (1/1) ... [2023-11-25 00:02:54,273 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53" (1/1) ... [2023-11-25 00:02:54,274 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53" (1/1) ... [2023-11-25 00:02:54,413 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53" (1/1) ... [2023-11-25 00:02:54,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53" (1/1) ... [2023-11-25 00:02:54,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53" (1/1) ... [2023-11-25 00:02:54,509 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53" (1/1) ... [2023-11-25 00:02:54,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:02:54,548 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:02:54,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:02:54,548 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:02:54,549 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53" (1/1) ... [2023-11-25 00:02:54,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:02:54,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:02:54,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:02:54,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a94a84f3-1233-4c91-a743-6083306938f6/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:02:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-25 00:02:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-25 00:02:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-25 00:02:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-25 00:02:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-25 00:02:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-25 00:02:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-25 00:02:54,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-25 00:02:54,729 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2023-11-25 00:02:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2023-11-25 00:02:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-25 00:02:54,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-25 00:02:54,730 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2023-11-25 00:02:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2023-11-25 00:02:54,731 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-11-25 00:02:54,731 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-11-25 00:02:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2023-11-25 00:02:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2023-11-25 00:02:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-25 00:02:54,732 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-25 00:02:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2023-11-25 00:02:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2023-11-25 00:02:54,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2023-11-25 00:02:54,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2023-11-25 00:02:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2023-11-25 00:02:54,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2023-11-25 00:02:54,736 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2023-11-25 00:02:54,737 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2023-11-25 00:02:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:02:54,737 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-25 00:02:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-25 00:02:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-25 00:02:54,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-25 00:02:54,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-25 00:02:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2023-11-25 00:02:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2023-11-25 00:02:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2023-11-25 00:02:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2023-11-25 00:02:54,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-25 00:02:54,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-25 00:02:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2023-11-25 00:02:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2023-11-25 00:02:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2023-11-25 00:02:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2023-11-25 00:02:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:02:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-25 00:02:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2023-11-25 00:02:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2023-11-25 00:02:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2023-11-25 00:02:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2023-11-25 00:02:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-25 00:02:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-25 00:02:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-25 00:02:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-25 00:02:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-25 00:02:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-25 00:02:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-25 00:02:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-25 00:02:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2023-11-25 00:02:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2023-11-25 00:02:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-25 00:02:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-25 00:02:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-11-25 00:02:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-11-25 00:02:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2023-11-25 00:02:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2023-11-25 00:02:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-11-25 00:02:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-11-25 00:02:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-25 00:02:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-25 00:02:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-25 00:02:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2023-11-25 00:02:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2023-11-25 00:02:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-25 00:02:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-25 00:02:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2023-11-25 00:02:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2023-11-25 00:02:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-25 00:02:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-25 00:02:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-25 00:02:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-25 00:02:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-25 00:02:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2023-11-25 00:02:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2023-11-25 00:02:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2023-11-25 00:02:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2023-11-25 00:02:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-25 00:02:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-25 00:02:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:02:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2023-11-25 00:02:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2023-11-25 00:02:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2023-11-25 00:02:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2023-11-25 00:02:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-25 00:02:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-25 00:02:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-25 00:02:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2023-11-25 00:02:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-25 00:02:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-25 00:02:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2023-11-25 00:02:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2023-11-25 00:02:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2023-11-25 00:02:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2023-11-25 00:02:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:02:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2023-11-25 00:02:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2023-11-25 00:02:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2023-11-25 00:02:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2023-11-25 00:02:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-25 00:02:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-25 00:02:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2023-11-25 00:02:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2023-11-25 00:02:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-25 00:02:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-25 00:02:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-25 00:02:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-25 00:02:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-25 00:02:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2023-11-25 00:02:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2023-11-25 00:02:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2023-11-25 00:02:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2023-11-25 00:02:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2023-11-25 00:02:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2023-11-25 00:02:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:02:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-25 00:02:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-25 00:02:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-25 00:02:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-25 00:02:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-25 00:02:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2023-11-25 00:02:54,760 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2023-11-25 00:02:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:02:54,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-25 00:02:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:02:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-25 00:02:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2023-11-25 00:02:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2023-11-25 00:02:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-25 00:02:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-25 00:02:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2023-11-25 00:02:54,762 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2023-11-25 00:02:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-25 00:02:54,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-25 00:02:54,766 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2023-11-25 00:02:54,766 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2023-11-25 00:02:54,768 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-11-25 00:02:54,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-11-25 00:02:54,769 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-25 00:02:54,769 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-25 00:02:54,770 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2023-11-25 00:02:54,770 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2023-11-25 00:02:54,771 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2023-11-25 00:02:54,776 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2023-11-25 00:02:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:02:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2023-11-25 00:02:54,777 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2023-11-25 00:02:54,777 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2023-11-25 00:02:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2023-11-25 00:02:54,778 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-11-25 00:02:54,778 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-11-25 00:02:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-25 00:02:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-25 00:02:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:02:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:02:54,779 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-25 00:02:54,779 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-25 00:02:55,549 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:02:55,553 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:02:56,139 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-25 00:03:02,538 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-25 00:03:04,594 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:03:06,822 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:03:06,823 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-25 00:03:06,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:03:06 BoogieIcfgContainer [2023-11-25 00:03:06,826 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:03:06,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:03:06,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:03:06,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:03:06,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:02:50" (1/3) ... [2023-11-25 00:03:06,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6b9f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:03:06, skipping insertion in model container [2023-11-25 00:03:06,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:02:53" (2/3) ... [2023-11-25 00:03:06,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6b9f3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:03:06, skipping insertion in model container [2023-11-25 00:03:06,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:03:06" (3/3) ... [2023-11-25 00:03:06,840 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2023-11-25 00:03:06,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:03:06,862 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-25 00:03:06,961 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:03:06,970 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;@5c4e0006, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:03:06,970 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-25 00:03:06,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 1094 states, 657 states have (on average 1.3211567732115677) internal successors, (868), 676 states have internal predecessors, (868), 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) [2023-11-25 00:03:07,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-25 00:03:07,024 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:07,025 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] [2023-11-25 00:03:07,026 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] === [2023-11-25 00:03:07,032 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:07,033 INFO L85 PathProgramCache]: Analyzing trace with hash -2046180980, now seen corresponding path program 1 times [2023-11-25 00:03:07,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:07,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583642414] [2023-11-25 00:03:07,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:07,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-11-25 00:03:16,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:16,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583642414] [2023-11-25 00:03:16,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583642414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:16,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:16,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-25 00:03:16,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618914716] [2023-11-25 00:03:16,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:16,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:03:16,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:16,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:03:16,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:03:16,756 INFO L87 Difference]: Start difference. First operand has 1094 states, 657 states have (on average 1.3211567732115677) internal successors, (868), 676 states have internal predecessors, (868), 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) [2023-11-25 00:03:18,884 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 [] [2023-11-25 00:03:21,128 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 [] [2023-11-25 00:03:26,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:03:26,730 INFO L93 Difference]: Finished difference Result 3159 states and 4586 transitions. [2023-11-25 00:03:26,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:03:26,734 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 [2023-11-25 00:03:26,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:03:26,808 INFO L225 Difference]: With dead ends: 3159 [2023-11-25 00:03:26,809 INFO L226 Difference]: Without dead ends: 2075 [2023-11-25 00:03:26,830 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 [2023-11-25 00:03:26,835 INFO L413 NwaCegarLoop]: 1325 mSDtfsCounter, 1476 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 2604 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-11-25 00:03:26,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 2604 Invalid, 549 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 538 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2023-11-25 00:03:26,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2075 states. [2023-11-25 00:03:27,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2075 to 2075. [2023-11-25 00:03:27,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 1259 states have (on average 1.3137410643367753) internal successors, (1654), 1298 states have internal predecessors, (1654), 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) [2023-11-25 00:03:27,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2992 transitions. [2023-11-25 00:03:27,412 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2992 transitions. Word has length 134 [2023-11-25 00:03:27,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:03:27,414 INFO L495 AbstractCegarLoop]: Abstraction has 2075 states and 2992 transitions. [2023-11-25 00:03:27,415 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) [2023-11-25 00:03:27,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2992 transitions. [2023-11-25 00:03:27,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-11-25 00:03:27,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:03:27,435 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] [2023-11-25 00:03:27,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:03:27,436 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] === [2023-11-25 00:03:27,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:03:27,437 INFO L85 PathProgramCache]: Analyzing trace with hash 47836748, now seen corresponding path program 1 times [2023-11-25 00:03:27,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:03:27,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147479580] [2023-11-25 00:03:27,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:03:27,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:03:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:03:37,821 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2023-11-25 00:03:37,821 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:03:37,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147479580] [2023-11-25 00:03:37,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147479580] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:03:37,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:03:37,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:03:37,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649189164] [2023-11-25 00:03:37,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:03:37,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-25 00:03:37,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:03:37,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-25 00:03:37,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-25 00:03:37,826 INFO L87 Difference]: Start difference. First operand 2075 states and 2992 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) [2023-11-25 00:03:39,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []