Trace number 426740

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, and are wall clock time (not CPU 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 2007-02-08SAT 30.6653 30.6872

General information on the benchmark

Namerandom/OnTreshold/7SAT/v45/
unif-k7-r89-v45-c4005-S1155547357-11.SAT.shuffled.cnf
MD5SUMf2ec1271555abc545a13dbf21a5936ee
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.329949
Satisfiable
(Un)Satisfiability was proved
Number of variables45
Number of clauses4005
Sum of the clauses size28035
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 54005

Solver Data (download as text)

30.58/30.68	c MXC attempting /tmp/evaluation/426740-1177828754/instance-426740-1177828754.cnf
30.58/30.68	c 0 assignments made, starting to guess now
30.58/30.68	c ===================================[MXC]=====================================
30.58/30.68	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
30.58/30.68	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
30.58/30.68	c =============================================================================
30.58/30.68	c |         0 |    4005    28035 |    1335       0       0     nan |  0.000 % |
30.58/30.68	c |       101 |    4005    28035 |    1468     101    1807    17.9 |  0.000 % |
30.58/30.68	c |       252 |    4005    28035 |    1615     252    4403    17.5 |  0.000 % |
30.58/30.68	c |       481 |    4005    28035 |    1776     481    8296    17.2 |  0.000 % |
30.58/30.68	c |       818 |    4005    28035 |    1954     818   14232    17.4 |  0.000 % |
30.58/30.68	c |      1325 |    4005    28035 |    2150    1325   23025    17.4 |  0.000 % |
30.58/30.68	c |      2085 |    4005    28035 |    2365    2085   36041    17.3 |  0.000 % |
30.58/30.68	c |      3224 |    4005    28035 |    2601    2041   34494    16.9 |  0.000 % |
30.58/30.68	c |      4932 |    4005    28035 |    2861    2447   40631    16.6 |  0.000 % |
30.58/30.68	c |      7494 |    4005    28035 |    3147    2147   35378    16.5 |  0.000 % |
30.58/30.68	c |     11338 |    4005    28035 |    3462    2843   46120    16.2 |  0.000 % |
30.58/30.68	c |     17105 |    4005    28035 |    3808    3416   52980    15.5 |  0.000 % |
30.58/30.68	c |     25755 |    4005    28035 |    4189    2544   39080    15.4 |  0.000 % |
30.58/30.68	c |     38730 |    4005    28035 |    4608    2950   45491    15.4 |  0.000 % |
30.58/30.68	c |     58192 |    4005    28035 |    5069    3981   57775    14.5 |  0.000 % |
30.58/30.68	c |     87386 |    4005    28035 |    5576    2761   40526    14.7 |  0.000 % |
30.58/30.68	c |    131176 |    4005    28035 |    6134    4736   70591    14.9 |  0.000 % |
30.58/30.68	c |    196860 |    4005    28035 |    6747    6030   89200    14.8 |  0.000 % |
30.58/30.68	c |    295387 |    4005    28035 |    7422    6748   98093    14.5 |  0.000 % |
30.58/30.68	c |    443176 |    4005    28035 |    8164    6150   90514    14.7 |  0.000 % |
30.58/30.68	c 30.660s elapsed
30.58/30.68	c restarts: 19
30.58/30.68	c decisions: 546155
30.58/30.68	c propagations: 3942373
30.58/30.68	c conflicts: 511021
30.58/30.68	s SATISFIABLE
30.58/30.68	v -18 -9 -40 -2 13 -10 35 14 29 -27 -1 -25 32 -44 34 16 36 22 4 -43 6 3 45 31 38 17 -11 -39 20 -7 -37 -8 -26 12 23 -15 24 33 19 41 -30 5 28 -42 21 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node6/watcher-426740-1177828754 -o ROOT/results/node6/solver-426740-1177828754 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/426740-1177828754/mxc /tmp/evaluation/426740-1177828754/instance-426740-1177828754.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 7500 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: 0.91 0.95 0.97 3/77 23125
/proc/meminfo: memFree=1627248/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=1196 CPUtime=0
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 165 0 0 0 0 0 0 0 18 0 1 0 258913066 1224704 150 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519249 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 299 150 57 122 0 173 0

[startup+0.0345769 s]
/proc/loadavg: 0.91 0.95 0.97 3/77 23125
/proc/meminfo: memFree=1627248/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=1196 CPUtime=0.03
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 176 0 0 0 3 0 0 0 18 0 1 0 258913066 1224704 161 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519610 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 299 161 59 122 0 173 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1196

[startup+0.101583 s]
/proc/loadavg: 0.91 0.95 0.97 3/77 23125
/proc/meminfo: memFree=1627248/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=1468 CPUtime=0.09
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 232 0 0 0 9 0 0 0 18 0 1 0 258913066 1503232 215 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134528498 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 367 215 67 122 0 241 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1468

[startup+0.301606 s]
/proc/loadavg: 0.91 0.95 0.97 3/77 23125
/proc/meminfo: memFree=1627248/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=1468 CPUtime=0.29
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 256 0 0 0 29 0 0 0 19 0 1 0 258913066 1503232 239 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519311 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 367 239 67 122 0 241 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1468

[startup+0.701654 s]
/proc/loadavg: 0.91 0.95 0.97 3/77 23125
/proc/meminfo: memFree=1627248/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=1600 CPUtime=0.69
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 283 0 0 0 69 0 0 0 23 0 1 0 258913066 1638400 266 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 400 266 67 122 0 274 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1600

[startup+1.50175 s]
/proc/loadavg: 0.91 0.95 0.97 2/78 23126
/proc/meminfo: memFree=1626408/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=1720 CPUtime=1.49
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 321 0 0 0 149 0 0 0 25 0 1 0 258913066 1761280 304 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519218 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 430 304 67 122 0 304 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1720

[startup+3.10193 s]
/proc/loadavg: 0.91 0.95 0.97 2/78 23126
/proc/meminfo: memFree=1626088/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=1956 CPUtime=3.09
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 361 0 0 0 309 0 0 0 25 0 1 0 258913066 2002944 344 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519220 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 489 344 67 122 0 363 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1956

[startup+6.30231 s]
/proc/loadavg: 0.92 0.95 0.97 2/78 23126
/proc/meminfo: memFree=1625832/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=2084 CPUtime=6.29
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 403 0 0 0 629 0 0 0 25 0 1 0 258913066 2134016 386 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 521 386 67 122 0 395 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2084

[startup+12.7011 s]
/proc/loadavg: 0.93 0.95 0.97 2/78 23126
/proc/meminfo: memFree=1625512/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=2316 CPUtime=12.69
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 462 0 0 0 1269 0 0 0 25 0 1 0 258913066 2371584 445 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 579 445 67 122 0 453 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2316

[startup+25.5016 s]
/proc/loadavg: 0.94 0.96 0.97 2/78 23126
/proc/meminfo: memFree=1625256/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=2540 CPUtime=25.48
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 528 0 0 0 2548 0 0 0 25 0 1 0 258913066 2600960 511 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530302 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 635 511 67 122 0 509 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 2540

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

[startup+28.7019 s]
/proc/loadavg: 0.94 0.96 0.97 2/78 23126
/proc/meminfo: memFree=1625192/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=2652 CPUtime=28.68
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 532 0 0 0 2868 0 0 0 25 0 1 0 258913066 2715648 515 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134534751 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 663 515 67 122 0 537 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 2652

[startup+29.501 s]
/proc/loadavg: 0.94 0.96 0.97 2/78 23126
/proc/meminfo: memFree=1625192/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=2652 CPUtime=29.48
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 532 0 0 0 2948 0 0 0 25 0 1 0 258913066 2715648 515 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519232 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 663 515 67 122 0 537 0
Current children cumulated CPU time (s) 29.48
Current children cumulated vsize (KiB) 2652

[startup+30.3011 s]
/proc/loadavg: 0.94 0.96 0.97 2/78 23126
/proc/meminfo: memFree=1625192/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=2652 CPUtime=30.28
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 532 0 0 0 3028 0 0 0 25 0 1 0 258913066 2715648 515 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134546949 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 663 515 67 122 0 537 0
Current children cumulated CPU time (s) 30.28
Current children cumulated vsize (KiB) 2652

[startup+30.5011 s]
/proc/loadavg: 0.94 0.96 0.97 2/78 23126
/proc/meminfo: memFree=1625192/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=2652 CPUtime=30.48
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 532 0 0 0 3048 0 0 0 25 0 1 0 258913066 2715648 515 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134535023 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 663 515 67 122 0 537 0
Current children cumulated CPU time (s) 30.48
Current children cumulated vsize (KiB) 2652

[startup+30.6012 s]
/proc/loadavg: 0.94 0.96 0.97 2/78 23126
/proc/meminfo: memFree=1625192/2055924 swapFree=4143464/4192956
[pid=23125] ppid=23123 vsize=2652 CPUtime=30.58
/proc/23125/stat : 23125 (mxc) R 23123 23125 22322 0 -1 4194304 532 0 0 0 3058 0 0 0 25 0 1 0 258913066 2715648 515 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/23125/statm: 663 515 67 122 0 537 0
Current children cumulated CPU time (s) 30.58
Current children cumulated vsize (KiB) 2652

Child status: 10
Real time (s): 30.6872
CPU time (s): 30.6653
CPU user time (s): 30.6583
CPU system time (s): 0.006998
CPU usage (%): 99.9288
Max. virtual memory (cumulated for all children) (KiB): 2652

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 30.6583
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= 534
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= 9
involuntary context switches= 44

runsolver used 0.028995 second user time and 0.068989 second system time

The end

Launcher Data (download as text)

Begin job on node6 on Sun Apr 29 06:39:14 UTC 2007

IDJOB= 426740
IDBENCH= 19944
IDSOLVER= 174
FILE ID= node6/426740-1177828754

PBS_JOBID= 4718258

Free space on /tmp= 66564 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v45/unif-k7-r89-v45-c4005-S1155547357-11.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/426740-1177828754/mxc /tmp/evaluation/426740-1177828754/instance-426740-1177828754.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-426740-1177828754 -o ROOT/results/node6/solver-426740-1177828754 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/426740-1177828754/mxc /tmp/evaluation/426740-1177828754/instance-426740-1177828754.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  f2ec1271555abc545a13dbf21a5936ee

RANDOM SEED= 57886661

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node6.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.232
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		: 3000.232
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:      2055924 kB
MemFree:       1627720 kB
Buffers:         43532 kB
Cached:         309208 kB
SwapCached:      17928 kB
Active:         216436 kB
Inactive:       163480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1627720 kB
SwapTotal:     4192956 kB
SwapFree:      4143464 kB
Dirty:             764 kB
Writeback:           0 kB
Mapped:          30052 kB
Slab:            33908 kB
Committed_AS:  7195708 kB
PageTables:       1784 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= 66564 MiB

End job on node6 on Sun Apr 29 06:39:45 UTC 2007