Trace number 1725610

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
MXC 2009-03-10SAT 2.75258 2.75416

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-brn004.sat05-3669.reshuffled-07.cnf
MD5SUM51245c7b8edb32c4dbd94daf982c00d7
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.72974
Satisfiable
(Un)Satisfiability was proved
Number of variables2435
Number of clauses16016
Sum of the clauses size112873
Maximum clause length13
Minimum clause length1
Number of clauses of size 135
Number of clauses of size 2385
Number of clauses of size 32207
Number of clauses of size 4298
Number of clauses of size 5447
Number of clauses of size over 512644

Solver Data 

2.69/2.75	c starting MXC with:
2.69/2.75	c cnf_path = HOME/instance-1725610-1240705749.cnf
2.69/2.75	c restart_strategy = auto
2.69/2.75	c sign_strategy = cached
2.69/2.75	c use_preprocessing = -1
2.69/2.75	c output_implicant = 1
2.69/2.75	c timeout_seconds = 0
2.69/2.75	c running SatELite... done
2.69/2.75	c 518 vars eliminated
2.69/2.75	c received 57 units and 10240 clauses from SatELite
2.69/2.75	c 574 assignments made, starting to guess now
2.69/2.75	c ===================================[MXC]=====================================
2.69/2.75	c | Conflicts |                Clause Statistics                   |   Vars   |
2.69/2.75	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
2.69/2.75	c =============================================================================
2.69/2.75	c |         0 |       0    1030     9210        0        0     nan |     2435 |
2.69/2.75	c |       100 |       0    1032     9210       98     1050    11.7 |     1861 |
2.69/2.75	c |       210 |       0    1033     9210      207     1105    13.4 |     1861 |
2.69/2.75	c |       441 |       0    1033     9210      438     1220    13.5 |     1861 |
2.69/2.75	c |       805 |       0    1033     9210      802     1402    15.9 |     1861 |
2.69/2.75	c |      1315 |       0    1034     9210     1311     1657    16.1 |     1861 |
2.69/2.75	c |      1986 |       0    1037     9210     1979     1993    15.7 |     1861 |
2.69/2.75	c |      2834 |       0    1038     9210     1822     2417    15.0 |     1861 |
2.69/2.75	c |      3876 |       0    1039     9210     2863     2938    15.8 |     1861 |
2.69/2.75	c |      5132 |       0    1040     9210     2615     3566    16.4 |     1861 |
2.69/2.75	c |      6623 |       0    1044     9210     4102     4311    16.7 |     1861 |
2.69/2.75	c |      8373 |       0    1046     9210     3594     5186    15.6 |     1861 |
2.69/2.75	c |     10408 |       0    1052     9210     5623     6204    16.3 |     1861 |
2.69/2.75	c |     12756 |       0    1060     9210     4800     6552    18.1 |     1861 |
2.69/2.75	c |     15449 |       0    1065     9210     4099     6861    18.3 |     1861 |
2.69/2.75	c |     18521 |       0    1075     9210     7161     7181    19.2 |     1861 |
2.69/2.75	c |     22010 |       0    1084     9210     7058     7499    22.5 |     1861 |
2.69/2.75	c |     25958 |       0    1090     9210     7232     7809    27.0 |     1861 |
2.69/2.75	c |     30411 |       0    1097     9210     7761     8122    25.4 |     1861 |
2.69/2.75	c |     35419 |       0    1113     9210     4469     8461    23.9 |     1861 |
2.69/2.75	c |     41038 |       0    1121     9210     5727     8781    26.1 |     1861 |
2.69/2.75	c |     44709 |       0    1126     9210     4920     8974    24.4 |     1861 |
2.69/2.75	c ----- stats for thread 0 -----
2.69/2.75	c restarts: 206
2.69/2.75	c decisions: 136524
2.69/2.75	c propagations: 2356425
2.69/2.75	c conflicts: 44709
2.69/2.75	c 2.751s elapsed
2.69/2.75	s SATISFIABLE
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-2420 2421 2422 2423 -2424 2425 -2426 2427 2428 2429 2430 2431 2432 2433 2434 2435 0

Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1725610-1240705749/watcher-1725610-1240705749 -o /tmp/evaluation-result-1725610-1240705749/solver-1725610-1240705749 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1725610-1240705749.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: 0.96 0.98 1.06 2/64 30498
/proc/meminfo: memFree=1645168/2055920 swapFree=4192812/4192956
[pid=30498] ppid=30496 vsize=2224 CPUtime=0
/proc/30498/stat : 30498 (mxc-sat09) R 30496 30498 29495 0 -1 4194304 408 0 0 0 0 0 0 0 18 0 1 0 98603321 2277376 394 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/30498/statm: 556 394 55 166 0 387 0

[startup+0.0951939 s]
/proc/loadavg: 0.96 0.98 1.06 2/64 30498
/proc/meminfo: memFree=1645168/2055920 swapFree=4192812/4192956
[pid=30498] ppid=30496 vsize=3168 CPUtime=0.09
/proc/30498/stat : 30498 (mxc-sat09) R 30496 30498 29495 0 -1 4194304 790 0 0 0 9 0 0 0 18 0 1 0 98603321 3244032 628 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/30498/statm: 792 628 56 166 0 623 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3168

[startup+0.101194 s]
/proc/loadavg: 0.96 0.98 1.06 2/64 30498
/proc/meminfo: memFree=1645168/2055920 swapFree=4192812/4192956
[pid=30498] ppid=30496 vsize=3464 CPUtime=0.09
/proc/30498/stat : 30498 (mxc-sat09) R 30496 30498 29495 0 -1 4194304 844 0 0 0 9 0 0 0 18 0 1 0 98603321 3547136 682 1992294400 134512640 135192793 4294956208 18446744073709551615 134573688 0 0 4096 0 0 0 0 17 1 0 0
/proc/30498/statm: 866 682 56 166 0 697 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3464

[startup+0.301232 s]
/proc/loadavg: 0.96 0.98 1.06 2/64 30498
/proc/meminfo: memFree=1645168/2055920 swapFree=4192812/4192956
[pid=30498] ppid=30496 vsize=4664 CPUtime=0.29
/proc/30498/stat : 30498 (mxc-sat09) R 30496 30498 29495 0 -1 4194304 1204 0 0 0 29 0 0 0 19 0 1 0 98603321 4775936 1001 1992294400 134512640 135192793 4294956208 18446744073709551615 134533904 0 0 4096 0 0 0 0 17 1 0 0
/proc/30498/statm: 1166 1001 73 166 0 997 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4664

[startup+0.701308 s]
/proc/loadavg: 0.96 0.98 1.06 2/64 30498
/proc/meminfo: memFree=1645168/2055920 swapFree=4192812/4192956
[pid=30498] ppid=30496 vsize=5456 CPUtime=0.69
/proc/30498/stat : 30498 (mxc-sat09) R 30496 30498 29495 0 -1 4194304 1416 0 0 0 69 0 0 0 23 0 1 0 98603321 5586944 1213 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/30498/statm: 1364 1213 73 166 0 1195 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5456

[startup+1.50146 s]
/proc/loadavg: 0.97 0.98 1.05 2/65 30499
/proc/meminfo: memFree=1641384/2055920 swapFree=4192812/4192956
[pid=30498] ppid=30496 vsize=6380 CPUtime=1.48
/proc/30498/stat : 30498 (mxc-sat09) R 30496 30498 29495 0 -1 4194304 1625 0 0 0 148 0 0 0 25 0 1 0 98603321 6533120 1422 1992294400 134512640 135192793 4294956208 18446744073709551615 134534131 0 0 4096 0 0 0 0 17 1 0 0
/proc/30498/statm: 1595 1422 73 166 0 1426 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 6380

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

[startup+2.30162 s]
/proc/loadavg: 0.97 0.98 1.05 2/65 30499
/proc/meminfo: memFree=1640552/2055920 swapFree=4192812/4192956
[pid=30498] ppid=30496 vsize=6560 CPUtime=2.28
/proc/30498/stat : 30498 (mxc-sat09) R 30496 30498 29495 0 -1 4194304 1673 0 0 0 228 0 0 0 25 0 1 0 98603321 6717440 1470 1992294400 134512640 135192793 4294956208 18446744073709551615 134534215 0 0 4096 0 0 0 0 17 1 0 0
/proc/30498/statm: 1640 1470 73 166 0 1471 0
Current children cumulated CPU time (s) 2.28
Current children cumulated vsize (KiB) 6560

[startup+2.70169 s]
/proc/loadavg: 0.97 0.98 1.05 2/65 30499
/proc/meminfo: memFree=1640552/2055920 swapFree=4192812/4192956
[pid=30498] ppid=30496 vsize=6692 CPUtime=2.69
/proc/30498/stat : 30498 (mxc-sat09) R 30496 30498 29495 0 -1 4194304 1728 0 0 0 268 1 0 0 25 0 1 0 98603321 6852608 1525 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/30498/statm: 1673 1525 73 166 0 1504 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 6692

Child status: 10
Real time (s): 2.75416
CPU time (s): 2.75258
CPU user time (s): 2.74058
CPU system time (s): 0.011998
CPU usage (%): 99.9427
Max. virtual memory (cumulated for all children) (KiB): 6692

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.74058
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1736
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= 5
involuntary context switches= 9

runsolver used 0.001999 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node38 at 2009-04-26 02:29:09
IDJOB=1725610
IDBENCH=24594
IDSOLVER=504
FILE ID=node38/1725610-1240705749
PBS_JOBID= 9186774
Free space on /tmp= 66360 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT07/crafted/Medium/contest05/others/QG7a-gensys-brn004.sat05-3669.reshuffled-07.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725610-1240705749/watcher-1725610-1240705749 -o /tmp/evaluation-result-1725610-1240705749/solver-1725610-1240705749 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1725610-1240705749.cnf

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

MD5SUM BENCH= 51245c7b8edb32c4dbd94daf982c00d7
RANDOM SEED=608447315

node38.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		: 3000.265
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		: 3000.265
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:       1646736 kB
Buffers:         43240 kB
Cached:         288668 kB
SwapCached:          0 kB
Active:         104516 kB
Inactive:       241304 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1646736 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1276 kB
Writeback:           0 kB
Mapped:          23652 kB
Slab:            49308 kB
Committed_AS:   490524 kB
PageTables:       1456 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= 66356 MiB
End job on node38 at 2009-04-26 02:29:11