Trace number 1796544

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
minisat2-simp 070721UNSAT 4.39433 4.40233

General information on the benchmark

Namecmu-bmc-barrel6.cnf
MD5SUMcc87f90bf08e13838e59f0f2639db121
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark2.68759
Satisfiable
(Un)Satisfiability was proved
Number of variables2306
Number of clauses8931
Sum of the clauses size24664
Maximum clause length217
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22629
Number of clauses of size 36048
Number of clauses of size 4252
Number of clauses of size 50
Number of clauses of size over 52

Solver Data 

0.00/0.00	This is MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  2306                                                 |
0.00/0.00	|  Number of clauses:    8931                                                 |
0.00/0.01	|  Parsing time:         0.01         s                                       |
0.19/0.20	============================[ Search Statistics ]==============================
0.19/0.20	| Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.19/0.20	|           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.19/0.20	===============================================================================
0.19/0.20	|         0 |     598     4452    70224 |     1484        0    nan |  0.000 % |
0.19/0.21	|       102 |     598     4452    70224 |     1632      102     66 |  0.000 % |
0.19/0.22	|       252 |     598     4452    70224 |     1795      252     68 |  0.000 % |
0.19/0.24	|       480 |     597     4449    70218 |     1975      479     61 |  0.044 % |
0.19/0.27	|       819 |     597     4449    70218 |     2172      818     55 |  0.044 % |
0.29/0.31	|      1326 |     597     4449    70218 |     2389     1323     59 |  0.130 % |
0.29/0.39	|      2086 |     593     4443    70206 |     2628     2080     60 |  0.260 % |
0.39/0.49	|      3225 |     593     4443    70206 |     2891     1796     60 |  0.260 % |
0.59/0.66	|      4933 |     591     4432    70168 |     3181     1939     57 |  0.347 % |
0.89/0.90	|      7495 |     586     4415    70088 |     3499     2797     60 |  0.521 % |
1.18/1.26	|     11339 |     584     4369    69850 |     3849     2833     52 |  0.650 % |
1.78/1.80	|     17105 |     575     4236    69162 |     4234     2615     47 |  1.041 % |
2.48/2.54	|     25755 |     572     4194    68940 |     4657     2484     36 |  1.128 % |
3.58/3.66	|     38729 |     567     4176    68850 |     5123     3362     53 |  1.344 % |
4.29/4.40	===============================================================================
4.29/4.40	restarts              : 14
4.29/4.40	conflicts             : 48520          (11059 /sec)
4.29/4.40	decisions             : 160301         (0.97 % random) (36537 /sec)
4.29/4.40	propagations          : 4430232        (1009778 /sec)
4.29/4.40	conflict literals     : 2757872        (40.40 % deleted)
4.29/4.40	Memory used           : 4.46 MB
4.29/4.40	CPU time              : 4.38733 s
4.29/4.40	
4.29/4.40	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1796544-1242077294/watcher-1796544-1242077294 -o /tmp/evaluation-result-1796544-1242077294/solver-1796544-1242077294 -C 1200 -W 1800 -M 1800 minisat_static HOME/instance-1796544-1242077294.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9258
/proc/meminfo: memFree=1953488/2055920 swapFree=4179768/4192956
[pid=9258] ppid=9256 vsize=1924 CPUtime=0
/proc/9258/stat : 9258 (minisat_static) R 9256 9258 9059 0 -1 4194304 132 0 0 0 0 0 0 0 18 0 1 0 235757273 1970176 117 1992294400 134512640 135243866 4294956256 18446744073709551615 134748230 0 0 4096 3 0 0 0 17 0 0 0
/proc/9258/statm: 481 118 65 178 0 301 0

[startup+0.0703221 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9258
/proc/meminfo: memFree=1953488/2055920 swapFree=4179768/4192956
[pid=9258] ppid=9256 vsize=3848 CPUtime=0.06
/proc/9258/stat : 9258 (minisat_static) R 9256 9258 9059 0 -1 4194304 643 0 0 0 6 0 0 0 18 0 1 0 235757273 3940352 628 1992294400 134512640 135243866 4294956256 18446744073709551615 134536624 0 0 4096 3 0 0 0 17 0 0 0
/proc/9258/statm: 962 628 81 178 0 782 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3848

[startup+0.101323 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9258
/proc/meminfo: memFree=1953488/2055920 swapFree=4179768/4192956
[pid=9258] ppid=9256 vsize=3848 CPUtime=0.09
/proc/9258/stat : 9258 (minisat_static) R 9256 9258 9059 0 -1 4194304 643 0 0 0 9 0 0 0 18 0 1 0 235757273 3940352 628 1992294400 134512640 135243866 4294956256 18446744073709551615 134541941 0 0 4096 3 0 0 0 17 0 0 0
/proc/9258/statm: 962 628 81 178 0 782 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3848

[startup+0.301343 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9258
/proc/meminfo: memFree=1953488/2055920 swapFree=4179768/4192956
[pid=9258] ppid=9256 vsize=3956 CPUtime=0.29
/proc/9258/stat : 9258 (minisat_static) R 9256 9258 9059 0 -1 4194304 672 0 0 0 29 0 0 0 20 0 1 0 235757273 4050944 657 1992294400 134512640 135243866 4294956256 18446744073709551615 134555911 0 0 4096 3 0 0 0 17 0 0 0
/proc/9258/statm: 989 657 87 178 0 809 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3956

[startup+0.701384 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 9258
/proc/meminfo: memFree=1953488/2055920 swapFree=4179768/4192956
[pid=9258] ppid=9256 vsize=3956 CPUtime=0.69
/proc/9258/stat : 9258 (minisat_static) R 9256 9258 9059 0 -1 4194304 672 0 0 0 69 0 0 0 24 0 1 0 235757273 4050944 657 1992294400 134512640 135243866 4294956256 18446744073709551615 134565613 0 0 4096 3 0 0 0 17 0 0 0
/proc/9258/statm: 989 657 87 178 0 809 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3956

[startup+1.50147 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 9259
/proc/meminfo: memFree=1950856/2055920 swapFree=4179768/4192956
[pid=9258] ppid=9256 vsize=4352 CPUtime=1.48
/proc/9258/stat : 9258 (minisat_static) R 9256 9258 9059 0 -1 4194304 763 0 0 0 148 0 0 0 25 0 1 0 235757273 4456448 748 1992294400 134512640 135243866 4294956256 18446744073709551615 134555808 0 0 4096 3 0 0 0 17 0 0 0
/proc/9258/statm: 1088 748 87 178 0 908 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 4352

[startup+3.10163 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 9259
/proc/meminfo: memFree=1950728/2055920 swapFree=4179768/4192956
[pid=9258] ppid=9256 vsize=4300 CPUtime=3.08
/proc/9258/stat : 9258 (minisat_static) R 9256 9258 9059 0 -1 4194304 763 0 0 0 308 0 0 0 25 0 1 0 235757273 4403200 748 1992294400 134512640 135243866 4294956256 18446744073709551615 134565470 0 0 4096 3 0 0 0 17 0 0 0
/proc/9258/statm: 1075 748 87 178 0 895 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 4300

Solver just ended. Dumping a history of the last processes samples

[startup+3.90171 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 9259
/proc/meminfo: memFree=1950728/2055920 swapFree=4179768/4192956
[pid=9258] ppid=9256 vsize=4564 CPUtime=3.88
/proc/9258/stat : 9258 (minisat_static) R 9256 9258 9059 0 -1 4194304 808 0 0 0 388 0 0 0 25 0 1 0 235757273 4673536 793 1992294400 134512640 135243866 4294956256 18446744073709551615 134555696 0 0 4096 3 0 0 0 17 0 0 0
/proc/9258/statm: 1141 793 87 178 0 961 0
Current children cumulated CPU time (s) 3.88
Current children cumulated vsize (KiB) 4564

[startup+4.30175 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 9259
/proc/meminfo: memFree=1950472/2055920 swapFree=4179768/4192956
[pid=9258] ppid=9256 vsize=4564 CPUtime=4.29
/proc/9258/stat : 9258 (minisat_static) R 9256 9258 9059 0 -1 4194304 808 0 0 0 429 0 0 0 25 0 1 0 235757273 4673536 793 1992294400 134512640 135243866 4294956256 18446744073709551615 134555746 0 0 4096 3 0 0 0 17 0 0 0
/proc/9258/statm: 1141 793 87 178 0 961 0
Current children cumulated CPU time (s) 4.29
Current children cumulated vsize (KiB) 4564

Child status: 20
Real time (s): 4.40233
CPU time (s): 4.39433
CPU user time (s): 4.38733
CPU system time (s): 0.006998
CPU usage (%): 99.8183
Max. virtual memory (cumulated for all children) (KiB): 4564

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.38733
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 818
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 50

runsolver used 0.005999 second user time and 0.022996 second system time

The end

Launcher Data 

Begin job on node45 at 2009-05-11 23:28:14
IDJOB=1796544
IDBENCH=69564
IDSOLVER=568
FILE ID=node45/1796544-1242077294
PBS_JOBID= 9277620
Free space on /tmp= 66228 MiB

SOLVER NAME= minisat2-simp 070721
BENCH NAME= SAT_RACE08/cnf/cmu-bmc-barrel6.cnf
COMMAND LINE= minisat_static BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1796544-1242077294/watcher-1796544-1242077294 -o /tmp/evaluation-result-1796544-1242077294/solver-1796544-1242077294 -C 1200 -W 1800 -M 1800  minisat_static HOME/instance-1796544-1242077294.cnf

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= cc87f90bf08e13838e59f0f2639db121
RANDOM SEED=1271357355

node45.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.231
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.231
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1954672 kB
Buffers:          6268 kB
Cached:          14596 kB
SwapCached:       6948 kB
Active:          12604 kB
Inactive:        16540 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1954672 kB
SwapTotal:     4192956 kB
SwapFree:      4179768 kB
Dirty:            1040 kB
Writeback:           0 kB
Mapped:          13988 kB
Slab:            58168 kB
Committed_AS:   800536 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66228 MiB
End job on node45 at 2009-05-11 23:28:18