Trace number 1719623

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
MiniSat 2.1 (Sat-race'08 Edition)UNSAT 14.9847 14.9898

General information on the benchmark

Nameschup-l2s-abp4-1-k31.cnf
MD5SUM2ec4066bd8381455b1990aa40b382ff0
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark14.9847
Satisfiable
(Un)Satisfiability was proved
Number of variables14809
Number of clauses48483
Sum of the clauses size123522
Maximum clause length33
Minimum clause length1
Number of clauses of size 136
Number of clauses of size 224983
Number of clauses of size 322191
Number of clauses of size 4589
Number of clauses of size 5403
Number of clauses of size over 5281

Solver Data 

0.00/0.00	c WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	c ============================[ Problem Statistics ]=============================
0.00/0.00	c |                                                                             |
0.03/0.05	c |  Number of variables:         14809                                         |
0.03/0.05	c |  Number of clauses:           47810                                         |
0.03/0.05	c |  Parse time:                   0.04 s                                       |
0.19/0.23	c |  Simplification time:          0.18 s                                       |
0.19/0.23	c |                                                                             |
0.19/0.23	c ============================[ Search Statistics ]==============================
0.19/0.23	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.19/0.23	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.19/0.23	c ===============================================================================
0.19/0.24	c |       100 |    4717    22333    68760 |     8188       99      9 |  4.052 % |
0.19/0.25	c |       250 |    4717    22333    68760 |     9007      249     10 |  4.052 % |
0.19/0.26	c |       475 |    4717    22333    68760 |     9908      474     16 |  4.052 % |
0.19/0.29	c |       812 |    4711    22264    68583 |    10899      810     13 |  4.092 % |
0.29/0.32	c |      1318 |    4711    22264    68583 |    11989     1316     14 |  4.092 % |
0.29/0.37	c |      2077 |    4711    22264    68583 |    13188     2075     14 |  4.092 % |
0.39/0.44	c |      3216 |    4673    22099    68200 |    14506     3212     14 |  4.349 % |
0.49/0.56	c |      4924 |    4673    22099    68200 |    15957     4920     14 |  4.349 % |
0.69/0.79	c |      7486 |    4673    22099    68200 |    17553     7482     19 |  4.349 % |
1.10/1.16	c |     11330 |    4673    22099    68200 |    19308    11326     20 |  4.349 % |
1.69/1.79	c |     17096 |    4673    22099    68200 |    21239    17092     24 |  4.349 % |
2.89/2.97	c |     25745 |    4673    22099    68200 |    23363    14511     22 |  4.349 % |
5.09/5.11	c |     38719 |    4673    22099    68200 |    25699    15451     26 |  4.349 % |
8.48/8.55	c |     58180 |    4672    22068    68138 |    28269    21675     26 |  4.355 % |
14.58/14.60	c |     87372 |    4672    22068    68138 |    31096    21836     24 |  4.356 % |
14.88/14.98	c ===============================================================================
14.88/14.98	c restarts              : 254
14.88/14.98	c conflicts             : 89252          (5973 /sec)
14.88/14.98	c decisions             : 166256         (11125 /sec)
14.88/14.98	c propagations          : 32679693       (2186850 /sec)
14.88/14.98	c conflict literals     : 2688277        (38.87 % deleted)
14.88/14.98	c Memory used           : 17.24 MB
14.88/14.98	c CPU time              : 14.9437 s
14.88/14.98	c 
14.88/14.98	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-1719623-1240647760/watcher-1719623-1240647760 -o /tmp/evaluation-result-1719623-1240647760/solver-1719623-1240647760 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1719623-1240647760.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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 18994
/proc/meminfo: memFree=1333352/2055920 swapFree=4181392/4192956
[pid=18994] ppid=18992 vsize=7608 CPUtime=0
/proc/18994/stat : 18994 (minisat) R 18992 18994 18493 0 -1 4194304 370 0 0 0 0 0 0 0 20 0 1 0 92805348 7790592 354 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/18994/statm: 1902 354 63 219 0 1680 0

[startup+0.0336511 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 18994
/proc/meminfo: memFree=1333352/2055920 swapFree=4181392/4192956
[pid=18994] ppid=18992 vsize=10192 CPUtime=0.03
/proc/18994/stat : 18994 (minisat) R 18992 18994 18493 0 -1 4194304 1119 0 0 0 3 0 0 0 20 0 1 0 92805348 10436608 1103 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/18994/statm: 2548 1104 63 219 0 2326 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 10192

[startup+0.101662 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 18994
/proc/meminfo: memFree=1333352/2055920 swapFree=4181392/4192956
[pid=18994] ppid=18992 vsize=12136 CPUtime=0.09
/proc/18994/stat : 18994 (minisat) R 18992 18994 18493 0 -1 4194304 1751 0 0 0 9 0 0 0 20 0 1 0 92805348 12427264 1694 1992294400 4194304 5092341 548682068832 18446744073709551615 4270144 0 0 4096 3 0 0 0 17 1 0 0
/proc/18994/statm: 3034 1694 88 219 0 2812 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12136

[startup+0.301697 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 18994
/proc/meminfo: memFree=1333352/2055920 swapFree=4181392/4192956
[pid=18994] ppid=18992 vsize=12024 CPUtime=0.29
/proc/18994/stat : 18994 (minisat) R 18992 18994 18493 0 -1 4194304 2096 0 0 0 28 1 0 0 22 0 1 0 92805348 12312576 1505 1992294400 4194304 5092341 548682068832 18446744073709551615 4248562 0 0 4096 3 0 0 0 17 1 0 0
/proc/18994/statm: 3006 1505 102 219 0 2784 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12024

[startup+0.70177 s]
/proc/loadavg: 0.99 0.98 0.99 3/65 18994
/proc/meminfo: memFree=1333352/2055920 swapFree=4181392/4192956
[pid=18994] ppid=18992 vsize=12024 CPUtime=0.69
/proc/18994/stat : 18994 (minisat) R 18992 18994 18493 0 -1 4194304 2203 0 0 0 68 1 0 0 25 0 1 0 92805348 12312576 1612 1992294400 4194304 5092341 548682068832 18446744073709551615 4492758 0 0 4096 3 0 0 0 17 1 0 0
/proc/18994/statm: 3006 1612 103 219 0 2784 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 12024

[startup+1.50191 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18995
/proc/meminfo: memFree=1326944/2055920 swapFree=4181392/4192956
[pid=18994] ppid=18992 vsize=12024 CPUtime=1.49
/proc/18994/stat : 18994 (minisat) R 18992 18994 18493 0 -1 4194304 2429 0 0 0 148 1 0 0 25 0 1 0 92805348 12312576 1838 1992294400 4194304 5092341 548682068832 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/18994/statm: 3006 1838 103 219 0 2784 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 12024

[startup+3.10121 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18995
/proc/meminfo: memFree=1325600/2055920 swapFree=4181392/4192956
[pid=18994] ppid=18992 vsize=12148 CPUtime=3.09
/proc/18994/stat : 18994 (minisat) R 18992 18994 18493 0 -1 4194304 3174 0 0 0 308 1 0 0 25 0 1 0 92805348 12439552 1899 1992294400 4194304 5092341 548682068832 18446744073709551615 4240843 0 0 4096 3 0 0 0 17 1 0 0
/proc/18994/statm: 3037 1899 103 219 0 2815 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 12148

[startup+6.30178 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18995
/proc/meminfo: memFree=1322144/2055920 swapFree=4181392/4192956
[pid=18994] ppid=18992 vsize=17624 CPUtime=6.29
/proc/18994/stat : 18994 (minisat) R 18992 18994 18493 0 -1 4194304 4271 0 0 0 627 2 0 0 25 0 1 0 92805348 18046976 2996 1992294400 4194304 5092341 548682068832 18446744073709551615 4241260 0 0 4096 3 0 0 0 17 1 0 0
/proc/18994/statm: 4406 2996 103 219 0 4184 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 17624

[startup+12.7019 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18995
/proc/meminfo: memFree=1314144/2055920 swapFree=4181392/4192956
[pid=18994] ppid=18992 vsize=28004 CPUtime=12.69
/proc/18994/stat : 18994 (minisat) R 18992 18994 18493 0 -1 4194304 6195 0 0 0 1266 3 0 0 25 0 1 0 92805348 28676096 4920 1992294400 4194304 5092341 548682068832 18446744073709551615 4241086 0 0 4096 3 0 0 0 17 1 0 0
/proc/18994/statm: 7001 4920 103 219 0 6779 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 28004

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

[startup+14.3052 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18995
/proc/meminfo: memFree=1320544/2055920 swapFree=4181392/4192956
[pid=18994] ppid=18992 vsize=17652 CPUtime=14.29
/proc/18994/stat : 18994 (minisat) R 18992 18994 18493 0 -1 4194304 6277 0 0 0 1426 3 0 0 25 0 1 0 92805348 18075648 3170 1992294400 4194304 5092341 548682068832 18446744073709551615 4241376 0 0 4096 3 0 0 0 17 1 0 0
/proc/18994/statm: 4413 3170 103 219 0 4191 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 17652

[startup+14.7013 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18995
/proc/meminfo: memFree=1320544/2055920 swapFree=4181392/4192956
[pid=18994] ppid=18992 vsize=17652 CPUtime=14.68
/proc/18994/stat : 18994 (minisat) R 18992 18994 18493 0 -1 4194304 6277 0 0 0 1465 3 0 0 25 0 1 0 92805348 18075648 3170 1992294400 4194304 5092341 548682068832 18446744073709551615 4250107 0 0 4096 3 0 0 0 17 1 0 0
/proc/18994/statm: 4413 3170 103 219 0 4191 0
Current children cumulated CPU time (s) 14.68
Current children cumulated vsize (KiB) 17652

[startup+14.9013 s]
/proc/loadavg: 0.99 0.98 0.99 2/66 18995
/proc/meminfo: memFree=1320544/2055920 swapFree=4181392/4192956
[pid=18994] ppid=18992 vsize=17652 CPUtime=14.88
/proc/18994/stat : 18994 (minisat) R 18992 18994 18493 0 -1 4194304 6277 0 0 0 1485 3 0 0 25 0 1 0 92805348 18075648 3170 1992294400 4194304 5092341 548682068832 18446744073709551615 4244223 0 0 4096 3 0 0 0 17 1 0 0
/proc/18994/statm: 4413 3170 103 219 0 4191 0
Current children cumulated CPU time (s) 14.88
Current children cumulated vsize (KiB) 17652

Child status: 20
Real time (s): 14.9898
CPU time (s): 14.9847
CPU user time (s): 14.9437
CPU system time (s): 0.040993
CPU usage (%): 99.9658
Max. virtual memory (cumulated for all children) (KiB): 28004

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 14.9437
system time used= 0.040993
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 6287
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= 17

runsolver used 0.021996 second user time and 0.038994 second system time

The end

Launcher Data 

Begin job on node84 at 2009-04-25 10:22:41
IDJOB=1719623
IDBENCH=69566
IDSOLVER=546
FILE ID=node84/1719623-1240647760
PBS_JOBID= 9186468
Free space on /tmp= 66244 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT_RACE08/cnf/schup-l2s-abp4-1-k31.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1719623-1240647760/watcher-1719623-1240647760 -o /tmp/evaluation-result-1719623-1240647760/solver-1719623-1240647760 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1719623-1240647760.cnf

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

MD5SUM BENCH= 2ec4066bd8381455b1990aa40b382ff0
RANDOM SEED=977339145

node84.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		: 3000.259
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		: 3000.259
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1333832 kB
Buffers:         68008 kB
Cached:         594948 kB
SwapCached:       5892 kB
Active:         229292 kB
Inactive:       441964 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1333832 kB
SwapTotal:     4192956 kB
SwapFree:      4181392 kB
Dirty:            1712 kB
Writeback:           0 kB
Mapped:          13444 kB
Slab:            36824 kB
Committed_AS:   300660 kB
PageTables:       1368 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= 66244 MiB
End job on node84 at 2009-04-25 10:22:56