./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.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_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/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_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/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_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/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 29824587617da9a02b15e9129afbb9cf5ee59d8d3dbb506aa4fe0ed84097e2f1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:08:00,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:08:00,811 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:08:00,820 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:08:00,821 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:08:00,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:08:00,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:08:00,871 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:08:00,872 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:08:00,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:08:00,880 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:08:00,881 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:08:00,882 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:08:00,884 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:08:00,884 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:08:00,885 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:08:00,885 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:08:00,886 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:08:00,886 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:08:00,887 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:08:00,887 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:08:00,888 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:08:00,889 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:08:00,889 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:08:00,890 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:08:00,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:08:00,891 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:08:00,891 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:08:00,892 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:08:00,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:08:00,894 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:08:00,894 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:08:00,894 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:08:00,895 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:08:00,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:00,895 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:08:00,896 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:08:00,896 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:08:00,896 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:08:00,896 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:08:00,897 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:08:00,897 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:08:00,897 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:08:00,898 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:08:00,898 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_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29824587617da9a02b15e9129afbb9cf5ee59d8d3dbb506aa4fe0ed84097e2f1 [2023-11-23 21:08:01,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:08:01,282 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:08:01,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:08:01,286 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:08:01,286 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:08:01,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2023-11-23 21:08:04,431 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:08:05,103 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:08:05,104 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2023-11-23 21:08:05,157 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/bin/utaipan-verify-mE87zJ7Ire/data/d61e13554/059ac7bcb7144cfcaed2a36bb45031b2/FLAGffb7d1fc6 [2023-11-23 21:08:05,174 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/bin/utaipan-verify-mE87zJ7Ire/data/d61e13554/059ac7bcb7144cfcaed2a36bb45031b2 [2023-11-23 21:08:05,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:08:05,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:08:05,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:05,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:08:05,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:08:05,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:05" (1/1) ... [2023-11-23 21:08:05,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@850983e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:05, skipping insertion in model container [2023-11-23 21:08:05,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:08:05" (1/1) ... [2023-11-23 21:08:05,423 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:08:08,095 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_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[314027,314040] [2023-11-23 21:08:08,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:08,597 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:08:08,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3514] [2023-11-23 21:08:08,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3516] [2023-11-23 21:08:08,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3539] [2023-11-23 21:08:08,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3541] [2023-11-23 21:08:08,700 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 %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3551-3552] [2023-11-23 21:08:08,708 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; addl %1,%0": "+m" (v->counter): "ir" (i)); [3657] [2023-11-23 21:08:08,708 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; subl %1,%0": "+m" (v->counter): "ir" (i)); [3664] [2023-11-23 21:08:08,709 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; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [3672-3673] [2023-11-23 21:08:08,710 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; incl %0": "+m" (v->counter)); [3680] [2023-11-23 21:08:08,710 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; decl %0": "+m" (v->counter)); [3687] [2023-11-23 21:08:08,711 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3698-3699] [2023-11-23 21:08:08,712 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3702-3703] [2023-11-23 21:08:08,712 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3706-3707] [2023-11-23 21:08:08,714 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3710-3711] [2023-11-23 21:08:08,715 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; cmpxchgb %2,%1": "=a" (__ret), "+m" (*__ptr): "q" (__new), "0" (__old): "memory"); [3735-3736] [2023-11-23 21:08:08,716 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; cmpxchgw %2,%1": "=a" (__ret), "+m" (*__ptr___0): "r" (__new), "0" (__old): "memory"); [3740-3741] [2023-11-23 21:08:08,717 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; cmpxchgl %2,%1": "=a" (__ret), "+m" (*__ptr___1): "r" (__new), "0" (__old): "memory"); [3745-3746] [2023-11-23 21:08:08,717 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; cmpxchgq %2,%1": "=a" (__ret), "+m" (*__ptr___2): "r" (__new), "0" (__old): "memory"); [3750-3751] [2023-11-23 21:08:08,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [3970] [2023-11-23 21:08:08,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [3973] [2023-11-23 21:08:08,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (val)); [3975] [2023-11-23 21:08:08,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [3980] [2023-11-23 21:08:08,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [3983] [2023-11-23 21:08:08,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [3985] [2023-11-23 21:08:08,781 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [3990] [2023-11-23 21:08:08,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [3993] [2023-11-23 21:08:08,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (val)); [3995] [2023-11-23 21:08:08,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [4000] [2023-11-23 21:08:08,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [4003] [2023-11-23 21:08:08,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (val)); [4005] [2023-11-23 21:08:08,785 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%0": "+m" (__preempt_count)); [4023] [2023-11-23 21:08:08,785 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%0": "+m" (__preempt_count)); [4026] [2023-11-23 21:08:08,786 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%0": "+m" (__preempt_count): "qi" (- val)); [4028] [2023-11-23 21:08:08,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%0": "+m" (__preempt_count)); [4033] [2023-11-23 21:08:08,788 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%0": "+m" (__preempt_count)); [4036] [2023-11-23 21:08:08,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [4038] [2023-11-23 21:08:08,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%0": "+m" (__preempt_count)); [4043] [2023-11-23 21:08:08,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%0": "+m" (__preempt_count)); [4046] [2023-11-23 21:08:08,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%0": "+m" (__preempt_count): "ri" (- val)); [4048] [2023-11-23 21:08:08,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%0": "+m" (__preempt_count)); [4053] [2023-11-23 21:08:08,793 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%0": "+m" (__preempt_count)); [4056] [2023-11-23 21:08:08,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%0": "+m" (__preempt_count): "re" (- val)); [4058] [2023-11-23 21:08:08,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4094] [2023-11-23 21:08:08,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4101] [2023-11-23 21:08:08,804 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4260] [2023-11-23 21:08:09,093 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7464] [2023-11-23 21:08:09,175 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8984] [2023-11-23 21:08:09,231 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_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i[314027,314040] [2023-11-23 21:08:09,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:08:09,449 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:08:09,449 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:08:09,450 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:08:09,450 WARN L675 CHandler]: The function __cmpxchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:08:09,450 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:08:09,450 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:08:09,458 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:08:09,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:09 WrapperNode [2023-11-23 21:08:09,460 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:08:09,461 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:09,461 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:08:09,461 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:08:09,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:09" (1/1) ... [2023-11-23 21:08:09,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:09" (1/1) ... [2023-11-23 21:08:09,807 INFO L138 Inliner]: procedures = 451, calls = 4146, calls flagged for inlining = 169, calls inlined = 83, statements flattened = 4887 [2023-11-23 21:08:09,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:08:09,809 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:08:09,809 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:08:09,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:08:09,862 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:09" (1/1) ... [2023-11-23 21:08:09,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:09" (1/1) ... [2023-11-23 21:08:09,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:09" (1/1) ... [2023-11-23 21:08:09,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:09" (1/1) ... [2023-11-23 21:08:10,099 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:09" (1/1) ... [2023-11-23 21:08:10,146 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:09" (1/1) ... [2023-11-23 21:08:10,192 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:09" (1/1) ... [2023-11-23 21:08:10,219 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:09" (1/1) ... [2023-11-23 21:08:10,263 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:08:10,264 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:08:10,264 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:08:10,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:08:10,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:09" (1/1) ... [2023-11-23 21:08:10,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:08:10,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:08:10,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:08:10,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a5d1232-fa36-4cfa-9e97-41bce4fae1dc/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:08:10,344 INFO L130 BoogieDeclarations]: Found specification of procedure smi_stats_proc_open [2023-11-23 21:08:10,344 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_stats_proc_open [2023-11-23 21:08:10,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:08:10,345 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:08:10,345 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-23 21:08:10,345 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-23 21:08:10,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:08:10,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:08:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2023-11-23 21:08:10,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~bool~0~TO~VOID [2023-11-23 21:08:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_poll [2023-11-23 21:08:10,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_poll [2023-11-23 21:08:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_cmd [2023-11-23 21:08:10,347 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_cmd [2023-11-23 21:08:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure handle_bmc_rsp [2023-11-23 21:08:10,347 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_bmc_rsp [2023-11-23 21:08:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure __write_once_size [2023-11-23 21:08:10,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __write_once_size [2023-11-23 21:08:10,348 INFO L130 BoogieDeclarations]: Found specification of procedure format_lan_msg [2023-11-23 21:08:10,348 INFO L138 BoogieDeclarations]: Found implementation of procedure format_lan_msg [2023-11-23 21:08:10,348 INFO L130 BoogieDeclarations]: Found specification of procedure copy_event_into_recv_msg [2023-11-23 21:08:10,348 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_event_into_recv_msg [2023-11-23 21:08:10,349 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_panic_request_and_wait [2023-11-23 21:08:10,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_panic_request_and_wait [2023-11-23 21:08:10,349 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:08:10,349 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:08:10,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cmd_rcvrs_mutex_of_ipmi_smi [2023-11-23 21:08:10,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cmd_rcvrs_mutex_of_ipmi_smi [2023-11-23 21:08:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure handle_oem_get_msg_cmd [2023-11-23 21:08:10,350 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_oem_get_msg_cmd [2023-11-23 21:08:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure need_waiter [2023-11-23 21:08:10,350 INFO L138 BoogieDeclarations]: Found implementation of procedure need_waiter [2023-11-23 21:08:10,350 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-23 21:08:10,351 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:08:10,351 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:08:10,351 INFO L130 BoogieDeclarations]: Found specification of procedure smi_send [2023-11-23 21:08:10,351 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_send [2023-11-23 21:08:10,351 INFO L130 BoogieDeclarations]: Found specification of procedure smi_add_send_msg [2023-11-23 21:08:10,352 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_add_send_msg [2023-11-23 21:08:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure intf_next_seq [2023-11-23 21:08:10,352 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_next_seq [2023-11-23 21:08:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:08:10,352 INFO L130 BoogieDeclarations]: Found specification of procedure PDE_DATA [2023-11-23 21:08:10,352 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE_DATA [2023-11-23 21:08:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cmd_rcvrs_mutex_of_ipmi_smi [2023-11-23 21:08:10,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cmd_rcvrs_mutex_of_ipmi_smi [2023-11-23 21:08:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-23 21:08:10,353 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-23 21:08:10,353 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:08:10,353 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:08:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure i_ipmi_request [2023-11-23 21:08:10,354 INFO L138 BoogieDeclarations]: Found implementation of procedure i_ipmi_request [2023-11-23 21:08:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:08:10,354 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2023-11-23 21:08:10,354 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2023-11-23 21:08:10,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:08:10,355 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2023-11-23 21:08:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~ipmi_smi_t~0~X~$Pointer$~TO~VOID [2023-11-23 21:08:10,355 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-11-23 21:08:10,355 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-11-23 21:08:10,355 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-11-23 21:08:10,356 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-11-23 21:08:10,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:08:10,356 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_err_response [2023-11-23 21:08:10,356 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_err_response [2023-11-23 21:08:10,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 21:08:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 21:08:10,357 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-11-23 21:08:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-11-23 21:08:10,357 INFO L130 BoogieDeclarations]: Found specification of procedure maintenance_mode_update [2023-11-23 21:08:10,357 INFO L138 BoogieDeclarations]: Found implementation of procedure maintenance_mode_update [2023-11-23 21:08:10,357 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-23 21:08:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-23 21:08:10,358 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-23 21:08:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-23 21:08:10,358 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-11-23 21:08:10,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-11-23 21:08:10,358 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2023-11-23 21:08:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2023-11-23 21:08:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:08:10,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:08:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:08:10,359 INFO L130 BoogieDeclarations]: Found specification of procedure smi_version_proc_open [2023-11-23 21:08:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_version_proc_open [2023-11-23 21:08:10,360 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2023-11-23 21:08:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2023-11-23 21:08:10,360 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-23 21:08:10,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-23 21:08:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:08:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure send_channel_info_cmd [2023-11-23 21:08:10,361 INFO L138 BoogieDeclarations]: Found implementation of procedure send_channel_info_cmd [2023-11-23 21:08:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:08:10,361 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:08:10,362 INFO L130 BoogieDeclarations]: Found specification of procedure handle_one_recv_msg [2023-11-23 21:08:10,363 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_one_recv_msg [2023-11-23 21:08:10,365 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:08:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:08:10,366 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-11-23 21:08:10,366 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-11-23 21:08:10,367 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_smi_msg [2023-11-23 21:08:10,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_smi_msg [2023-11-23 21:08:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-23 21:08:10,368 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-23 21:08:10,368 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_recv_msgs [2023-11-23 21:08:10,374 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_recv_msgs [2023-11-23 21:08:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure is_lan_addr [2023-11-23 21:08:10,374 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lan_addr [2023-11-23 21:08:10,374 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:08:10,375 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:08:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2023-11-23 21:08:10,375 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2023-11-23 21:08:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:08:10,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:08:10,375 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2023-11-23 21:08:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-23 21:08:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-23 21:08:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:08:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_smi_msg_received [2023-11-23 21:08:10,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_smi_msg_received [2023-11-23 21:08:10,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:08:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:08:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:08:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure intf_find_seq [2023-11-23 21:08:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_find_seq [2023-11-23 21:08:10,377 INFO L130 BoogieDeclarations]: Found specification of procedure handle_read_event_rsp [2023-11-23 21:08:10,377 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_read_event_rsp [2023-11-23 21:08:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2023-11-23 21:08:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2023-11-23 21:08:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_cmd [2023-11-23 21:08:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_cmd [2023-11-23 21:08:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:08:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:08:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:08:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:08:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-11-23 21:08:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-11-23 21:08:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:08:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:08:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2023-11-23 21:08:10,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2023-11-23 21:08:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 21:08:10,380 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 21:08:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2023-11-23 21:08:10,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2023-11-23 21:08:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:08:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:08:10,381 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:08:10,381 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2023-11-23 21:08:10,382 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2023-11-23 21:08:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:08:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-23 21:08:10,382 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-23 21:08:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:08:10,382 INFO L130 BoogieDeclarations]: Found specification of procedure find_cmd_rcvr [2023-11-23 21:08:10,383 INFO L138 BoogieDeclarations]: Found implementation of procedure find_cmd_rcvr [2023-11-23 21:08:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:08:10,383 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:08:10,383 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 21:08:10,383 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 21:08:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_init_msghandler [2023-11-23 21:08:10,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_init_msghandler [2023-11-23 21:08:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-23 21:08:10,384 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-23 21:08:10,384 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2023-11-23 21:08:10,384 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2023-11-23 21:08:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_recv_msg [2023-11-23 21:08:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_recv_msg [2023-11-23 21:08:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure handle_ipmb_get_msg_rsp [2023-11-23 21:08:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_ipmb_get_msg_rsp [2023-11-23 21:08:10,385 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2023-11-23 21:08:10,385 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2023-11-23 21:08:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2023-11-23 21:08:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2023-11-23 21:08:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2023-11-23 21:08:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2023-11-23 21:08:10,386 INFO L130 BoogieDeclarations]: Found specification of procedure smi_ipmb_proc_open [2023-11-23 21:08:10,386 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_ipmb_proc_open [2023-11-23 21:08:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:08:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:08:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:08:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-11-23 21:08:10,387 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2023-11-23 21:08:10,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:08:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:08:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_addr [2023-11-23 21:08:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_addr [2023-11-23 21:08:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure handle_lan_get_msg_rsp [2023-11-23 21:08:10,388 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_lan_get_msg_rsp [2023-11-23 21:08:10,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:08:10,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:08:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_bcast_addr [2023-11-23 21:08:10,389 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_bcast_addr [2023-11-23 21:08:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-11-23 21:08:10,389 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-11-23 21:08:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure format_ipmb_msg [2023-11-23 21:08:10,389 INFO L138 BoogieDeclarations]: Found implementation of procedure format_ipmb_msg [2023-11-23 21:08:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-11-23 21:08:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-11-23 21:08:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2023-11-23 21:08:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2023-11-23 21:08:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure intf_err_seq [2023-11-23 21:08:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_err_seq [2023-11-23 21:08:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-11-23 21:08:10,391 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-11-23 21:08:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 21:08:10,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 21:08:10,391 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_timeout [2023-11-23 21:08:10,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_timeout [2023-11-23 21:08:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2023-11-23 21:08:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2023-11-23 21:08:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure smi_recv_tasklet [2023-11-23 21:08:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_recv_tasklet [2023-11-23 21:08:10,392 INFO L130 BoogieDeclarations]: Found specification of procedure ipmb_checksum [2023-11-23 21:08:10,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmb_checksum [2023-11-23 21:08:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_response [2023-11-23 21:08:10,393 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_response [2023-11-23 21:08:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2023-11-23 21:08:10,393 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2023-11-23 21:08:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:08:10,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:08:10,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-23 21:08:10,395 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2023-11-23 21:08:10,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2023-11-23 21:08:10,399 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-23 21:08:11,277 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:08:11,285 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:08:11,938 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:08:24,175 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:08:26,048 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:08:26,048 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:08:26,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:26 BoogieIcfgContainer [2023-11-23 21:08:26,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:08:26,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:08:26,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:08:26,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:08:26,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:08:05" (1/3) ... [2023-11-23 21:08:26,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682b0089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:26, skipping insertion in model container [2023-11-23 21:08:26,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:08:09" (2/3) ... [2023-11-23 21:08:26,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@682b0089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:08:26, skipping insertion in model container [2023-11-23 21:08:26,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:08:26" (3/3) ... [2023-11-23 21:08:26,065 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--char--ipmi--ipmi_msghandler.ko-entry_point.cil.out.i [2023-11-23 21:08:26,086 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:08:26,086 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:08:26,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:08:26,203 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;@4a56c773, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:08:26,204 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:08:26,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 1523 states, 934 states have (on average 1.3961456102783727) internal successors, (1304), 1029 states have internal predecessors, (1304), 486 states have call successors, (486), 102 states have call predecessors, (486), 101 states have return successors, (468), 448 states have call predecessors, (468), 468 states have call successors, (468) [2023-11-23 21:08:26,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2023-11-23 21:08:26,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:26,283 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:26,283 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:26,290 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:26,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1463859885, now seen corresponding path program 1 times [2023-11-23 21:08:26,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:08:26,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981253968] [2023-11-23 21:08:26,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:26,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:08:27,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:29,170 INFO L134 CoverageAnalysis]: Checked inductivity of 7965 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7965 trivial. 0 not checked. [2023-11-23 21:08:29,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:08:29,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981253968] [2023-11-23 21:08:29,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981253968] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:29,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:29,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:08:29,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131475401] [2023-11-23 21:08:29,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:29,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:08:29,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:08:29,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:08:29,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:29,227 INFO L87 Difference]: Start difference. First operand has 1523 states, 934 states have (on average 1.3961456102783727) internal successors, (1304), 1029 states have internal predecessors, (1304), 486 states have call successors, (486), 102 states have call predecessors, (486), 101 states have return successors, (468), 448 states have call predecessors, (468), 468 states have call successors, (468) Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-11-23 21:08:31,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:08:32,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:08:36,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:08:36,696 INFO L93 Difference]: Finished difference Result 4270 states and 6468 transitions. [2023-11-23 21:08:36,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:08:36,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) Word has length 551 [2023-11-23 21:08:36,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:08:36,757 INFO L225 Difference]: With dead ends: 4270 [2023-11-23 21:08:36,757 INFO L226 Difference]: Without dead ends: 2813 [2023-11-23 21:08:36,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:08:36,776 INFO L413 NwaCegarLoop]: 2061 mSDtfsCounter, 2000 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 4078 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:08:36,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2000 Valid, 4078 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-11-23 21:08:36,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2813 states. [2023-11-23 21:08:37,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2813 to 2809. [2023-11-23 21:08:37,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2809 states, 1762 states have (on average 1.3864926220204312) internal successors, (2443), 1902 states have internal predecessors, (2443), 851 states have call successors, (851), 196 states have call predecessors, (851), 195 states have return successors, (841), 801 states have call predecessors, (841), 841 states have call successors, (841) [2023-11-23 21:08:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 4135 transitions. [2023-11-23 21:08:37,154 INFO L78 Accepts]: Start accepts. Automaton has 2809 states and 4135 transitions. Word has length 551 [2023-11-23 21:08:37,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:08:37,167 INFO L495 AbstractCegarLoop]: Abstraction has 2809 states and 4135 transitions. [2023-11-23 21:08:37,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 1 states have call predecessors, (53), 1 states have call successors, (53) [2023-11-23 21:08:37,168 INFO L276 IsEmpty]: Start isEmpty. Operand 2809 states and 4135 transitions. [2023-11-23 21:08:37,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2023-11-23 21:08:37,189 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:08:37,190 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 40, 40, 40, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:08:37,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:08:37,190 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:08:37,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:08:37,191 INFO L85 PathProgramCache]: Analyzing trace with hash -2048159799, now seen corresponding path program 1 times [2023-11-23 21:08:37,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:08:37,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142685676] [2023-11-23 21:08:37,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:08:37,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:08:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:08:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 7965 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7965 trivial. 0 not checked. [2023-11-23 21:08:39,036 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:08:39,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142685676] [2023-11-23 21:08:39,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142685676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:08:39,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:08:39,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:08:39,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256864160] [2023-11-23 21:08:39,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:08:39,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:08:39,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:08:39,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:08:39,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:08:39,042 INFO L87 Difference]: Start difference. First operand 2809 states and 4135 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (55), 3 states have call predecessors, (55), 2 states have return successors, (54), 3 states have call predecessors, (54), 2 states have call successors, (54) [2023-11-23 21:08:40,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []