Trace number 1736483

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 1.87071 1.87124

General information on the benchmark

NameCRAFTED/parity-games/
instance_n5_i6_pp_ci_ce.cnf
MD5SUM2cb95a73fc66a1c6328b2127a33b0a14
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.74873
Satisfiable
(Un)Satisfiability was proved
Number of variables4380
Number of clauses31980
Sum of the clauses size102772
Maximum clause length20
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 27508
Number of clauses of size 313398
Number of clauses of size 47973
Number of clauses of size 53006
Number of clauses of size over 595

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 |                                                                             |
0.00/0.03	c |  Number of variables:          4380                                         |
0.00/0.03	c |  Number of clauses:           31980                                         |
0.00/0.03	c |  Parse time:                   0.03 s                                       |
0.08/0.10	c |  Simplification time:          0.07 s                                       |
0.08/0.10	c |                                                                             |
0.08/0.10	c ============================[ Search Statistics ]==============================
0.08/0.10	c | Conflicts |          ORIGINAL         |          LEARNT          | Progress |
0.08/0.10	c |           |    Vars  Clauses Literals |    Limit  Clauses Lit/Cl |          |
0.08/0.10	c ===============================================================================
0.09/0.10	c |       100 |    2915    24813    81034 |     9098       99     11 |  2.078 % |
0.09/0.11	c |       250 |    2915    24813    81034 |    10007      249     14 |  2.078 % |
0.09/0.12	c |       475 |    2915    24813    81034 |    11008      474     13 |  2.078 % |
0.09/0.14	c |       812 |    2915    24809    81026 |    12109      811     14 |  2.078 % |
0.09/0.18	c |      1318 |    2915    24809    81026 |    13320     1317     17 |  2.078 % |
0.19/0.22	c |      2077 |    2915    24809    81026 |    14652     2076     18 |  2.078 % |
0.19/0.30	c |      3216 |    2915    24809    81026 |    16117     3215     21 |  2.078 % |
0.39/0.44	c |      4924 |    2915    24809    81026 |    17729     4923     21 |  2.078 % |
0.69/0.75	c |      7486 |    2915    24809    81026 |    19502     7485     23 |  2.078 % |
1.09/1.18	c |     11330 |    2915    24809    81026 |    21452    11329     24 |  2.078 % |
1.79/1.87	c ===============================================================================
1.79/1.87	c restarts              : 62
1.79/1.87	c conflicts             : 15835          (8496 /sec)
1.79/1.87	c decisions             : 32447          (17410 /sec)
1.79/1.87	c propagations          : 4264096        (2287954 /sec)
1.79/1.87	c conflict literals     : 380324         (41.60 % deleted)
1.79/1.87	c Memory used           : 9.36 MB
1.79/1.87	c CPU time              : 1.86372 s
1.79/1.87	c 
1.79/1.87	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-1736483-1240811840/watcher-1736483-1240811840 -o /tmp/evaluation-result-1736483-1240811840/solver-1736483-1240811840 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/minisat HOME/instance-1736483-1240811840.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 0.97 0.99 3/64 4441
/proc/meminfo: memFree=1653904/2055920 swapFree=4191900/4192956
[pid=4441] ppid=4439 vsize=8192 CPUtime=0
/proc/4441/stat : 4441 (minisat) R 4439 4441 4374 0 -1 4194304 439 0 0 0 0 0 0 0 18 0 1 0 109218015 8388608 423 1992294400 4194304 5092341 548682068848 18446744073709551615 4492958 0 0 4096 3 0 0 0 17 1 0 0
/proc/4441/statm: 2048 423 63 219 0 1826 0

[startup+0.0895639 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 4441
/proc/meminfo: memFree=1653904/2055920 swapFree=4191900/4192956
[pid=4441] ppid=4439 vsize=9472 CPUtime=0.08
/proc/4441/stat : 4441 (minisat) R 4439 4441 4374 0 -1 4194304 989 0 0 0 8 0 0 0 18 0 1 0 109218015 9699328 973 1992294400 4194304 5092341 548682068848 18446744073709551615 4219935 0 0 4096 3 0 0 0 17 1 0 0
/proc/4441/statm: 2368 973 88 219 0 2146 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 9472

[startup+0.102564 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 4441
/proc/meminfo: memFree=1653904/2055920 swapFree=4191900/4192956
[pid=4441] ppid=4439 vsize=9308 CPUtime=0.09
/proc/4441/stat : 4441 (minisat) R 4439 4441 4374 0 -1 4194304 1100 0 0 0 9 0 0 0 18 0 1 0 109218015 9531392 860 1992294400 4194304 5092341 548682068848 18446744073709551615 4501838 0 0 4096 3 0 0 0 17 1 0 0
/proc/4441/statm: 2327 860 92 219 0 2105 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9308

[startup+0.302584 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 4441
/proc/meminfo: memFree=1653904/2055920 swapFree=4191900/4192956
[pid=4441] ppid=4439 vsize=9308 CPUtime=0.29
/proc/4441/stat : 4441 (minisat) R 4439 4441 4374 0 -1 4194304 1181 0 0 0 29 0 0 0 19 0 1 0 109218015 9531392 941 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/4441/statm: 2327 941 100 219 0 2105 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9308

[startup+0.701624 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 4441
/proc/meminfo: memFree=1653904/2055920 swapFree=4191900/4192956
[pid=4441] ppid=4439 vsize=9308 CPUtime=0.69
/proc/4441/stat : 4441 (minisat) R 4439 4441 4374 0 -1 4194304 1281 0 0 0 69 0 0 0 22 0 1 0 109218015 9531392 1041 1992294400 4194304 5092341 548682068848 18446744073709551615 4265869 0 0 4096 3 0 0 0 17 1 0 0
/proc/4441/statm: 2327 1041 100 219 0 2105 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 9308

[startup+1.5017 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 4442
/proc/meminfo: memFree=1649800/2055920 swapFree=4191900/4192956
[pid=4441] ppid=4439 vsize=9452 CPUtime=1.49
/proc/4441/stat : 4441 (minisat) R 4439 4441 4374 0 -1 4194304 1485 0 0 0 149 0 0 0 25 0 1 0 109218015 9678848 1245 1992294400 4194304 5092341 548682068848 18446744073709551615 4240947 0 0 4096 3 0 0 0 17 1 0 0
/proc/4441/statm: 2363 1245 100 219 0 2141 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 9452

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

[startup+1.70172 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 4442
/proc/meminfo: memFree=1649800/2055920 swapFree=4191900/4192956
[pid=4441] ppid=4439 vsize=9584 CPUtime=1.69
/proc/4441/stat : 4441 (minisat) R 4439 4441 4374 0 -1 4194304 1531 0 0 0 169 0 0 0 25 0 1 0 109218015 9814016 1291 1992294400 4194304 5092341 548682068848 18446744073709551615 4241260 0 0 4096 3 0 0 0 17 1 0 0
/proc/4441/statm: 2396 1291 100 219 0 2174 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 9584

[startup+1.80173 s]
/proc/loadavg: 0.99 0.97 0.99 2/65 4442
/proc/meminfo: memFree=1649800/2055920 swapFree=4191900/4192956
[pid=4441] ppid=4439 vsize=9584 CPUtime=1.79
/proc/4441/stat : 4441 (minisat) R 4439 4441 4374 0 -1 4194304 1555 0 0 0 179 0 0 0 25 0 1 0 109218015 9814016 1315 1992294400 4194304 5092341 548682068848 18446744073709551615 4240611 0 0 4096 3 0 0 0 17 1 0 0
/proc/4441/statm: 2396 1315 100 219 0 2174 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 9584

Child status: 20
Real time (s): 1.87124
CPU time (s): 1.87071
CPU user time (s): 1.86372
CPU system time (s): 0.006998
CPU usage (%): 99.9721
Max. virtual memory (cumulated for all children) (KiB): 9584

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.86372
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= 1577
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= 5

runsolver used 0.003999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node12 at 2009-04-27 07:57:20
IDJOB=1736483
IDBENCH=71626
IDSOLVER=546
FILE ID=node12/1736483-1240811840
PBS_JOBID= 9187466
Free space on /tmp= 66380 MiB

SOLVER NAME= MiniSat 2.1 (Sat-race'08 Edition)
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n5_i6_pp_ci_ce.cnf
COMMAND LINE= HOME/minisat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1736483-1240811840/watcher-1736483-1240811840 -o /tmp/evaluation-result-1736483-1240811840/solver-1736483-1240811840 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/minisat HOME/instance-1736483-1240811840.cnf

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

MD5SUM BENCH= 2cb95a73fc66a1c6328b2127a33b0a14
RANDOM SEED=1142927189

node12.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		: 3000.213
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		: 3000.213
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:       1654320 kB
Buffers:         57088 kB
Cached:         270288 kB
SwapCached:        384 kB
Active:         139720 kB
Inactive:       200952 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1654320 kB
SwapTotal:     4192956 kB
SwapFree:      4191900 kB
Dirty:            1512 kB
Writeback:           0 kB
Mapped:          21756 kB
Slab:            46972 kB
Committed_AS:   556240 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= 66376 MiB
End job on node12 at 2009-04-27 07:57:22