Trace number 427115

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 51.0802 51.1067

General information on the benchmark

Namerandom/2+p/p0.8/v1665/
unif2p-p0.8-v1665-c5178-S1939769766-11-SAT.cnf
MD5SUM6a3b3e57d22696582c0456812681e53c
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.752884
Satisfiable
(Un)Satisfiability was proved
Number of variables1664
Number of clauses5177
Sum of the clauses size14496
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21035
Number of clauses of size 34142
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

51.07/51.10	c MXC attempting /tmp/evaluation/427115-1177831918/instance-427115-1177831918.cnf
51.07/51.10	c 0 assignments made, starting to guess now
51.07/51.10	c ===================================[MXC]=====================================
51.07/51.10	c | Conflicts |     ORIGINAL     |             LEARNT              | Progress |
51.07/51.10	c |           | Clauses Literals |  Limit Clauses Literals  Lit/Cl |          |
51.07/51.10	c =============================================================================
51.07/51.10	c |         0 |    4142    12426 |    1380       0       0     nan |  0.000 % |
51.07/51.10	c |       100 |    4142    12426 |    1518      99    2644    26.7 |  0.000 % |
51.07/51.10	c |       250 |    4142    12426 |    1669     249    5782    23.2 |  0.000 % |
51.07/51.10	c |       475 |    4142    12426 |    1836     472   10788    22.9 |  0.000 % |
51.07/51.10	c |       813 |    4142    12426 |    2020     810   17638    21.8 |  0.000 % |
51.07/51.10	c |      1319 |    4142    12426 |    2222    1316   26855    20.4 |  0.000 % |
51.07/51.10	c |      2078 |    4142    12426 |    2444    2075   43213    20.8 |  0.000 % |
51.07/51.10	c |      3217 |    4142    12426 |    2689    1990   44726    22.5 |  0.000 % |
51.07/51.10	c |      4926 |    4142    12426 |    2958    2355   59611    25.3 |  0.000 % |
51.07/51.10	c |      7488 |    4142    12426 |    3253    1956   48667    24.9 |  0.000 % |
51.07/51.10	c |     11332 |    4142    12426 |    3579    2549   72400    28.4 |  0.000 % |
51.07/51.10	c |     17098 |    4142    12426 |    3937    2942   64599    22.0 |  0.000 % |
51.07/51.10	c |     25747 |    4142    12426 |    4331    3719   88890    23.9 |  0.000 % |
51.07/51.10	c |     38721 |    4142    12426 |    4764    3699   87697    23.7 |  0.000 % |
51.07/51.10	c |     58183 |    4142    12426 |    5240    4125   98440    23.9 |  0.000 % |
51.07/51.10	c |     87375 |    4142    12426 |    5764    4514  103771    23.0 |  0.000 % |
51.07/51.10	c |    131165 |    4142    12426 |    6341    5097  122127    24.0 |  0.000 % |
51.07/51.10	c |    196849 |    4142    12426 |    6975    4235   98950    23.4 |  0.000 % |
51.07/51.10	c |    295376 |    4142    12426 |    7672    5204  136224    26.2 |  0.000 % |
51.07/51.10	c 51.080s elapsed
51.07/51.10	c restarts: 18
51.07/51.10	c decisions: 498845
51.07/51.10	c propagations: 80590533
51.07/51.10	c conflicts: 398648
51.07/51.10	s SATISFIABLE
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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/node7/watcher-427115-1177831918 -o ROOT/results/node7/solver-427115-1177831918 -C 5000 -W 7500 -M 1800 --output-limit 1,15 /tmp/evaluation/427115-1177831918/mxc /tmp/evaluation/427115-1177831918/instance-427115-1177831918.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: 1.09 1.28 1.15 3/77 16016
/proc/meminfo: memFree=1630384/2055920 swapFree=4156360/4192956
[pid=16016] ppid=16014 vsize=1352 CPUtime=0
/proc/16016/stat : 16016 (mxc) R 16014 16016 13601 0 -1 4194304 187 0 0 0 0 0 0 0 18 0 1 0 259229394 1384448 172 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134533374 0 0 4096 0 0 0 0 17 1 0 0
/proc/16016/statm: 338 172 47 122 0 212 0

[startup+0.0892419 s]
/proc/loadavg: 1.09 1.28 1.15 3/77 16016
/proc/meminfo: memFree=1630384/2055920 swapFree=4156360/4192956
[pid=16016] ppid=16014 vsize=1484 CPUtime=0.08
/proc/16016/stat : 16016 (mxc) R 16014 16016 13601 0 -1 4194304 219 0 0 0 8 0 0 0 18 0 1 0 259229394 1519616 204 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519576 0 0 4096 0 0 0 0 17 1 0 0
/proc/16016/statm: 371 204 59 122 0 245 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1484

[startup+0.101242 s]
/proc/loadavg: 1.09 1.28 1.15 3/77 16016
/proc/meminfo: memFree=1630384/2055920 swapFree=4156360/4192956
[pid=16016] ppid=16014 vsize=1484 CPUtime=0.1
/proc/16016/stat : 16016 (mxc) R 16014 16016 13601 0 -1 4194304 223 0 0 0 10 0 0 0 18 0 1 0 259229394 1519616 208 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/16016/statm: 371 208 59 122 0 245 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1484

[startup+0.301262 s]
/proc/loadavg: 1.09 1.28 1.15 3/77 16016
/proc/meminfo: memFree=1630384/2055920 swapFree=4156360/4192956
[pid=16016] ppid=16014 vsize=1628 CPUtime=0.29
/proc/16016/stat : 16016 (mxc) R 16014 16016 13601 0 -1 4194304 278 0 0 0 29 0 0 0 19 0 1 0 259229394 1667072 261 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519215 0 0 4096 0 0 0 0 17 1 0 0
/proc/16016/statm: 407 261 67 122 0 281 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1628

[startup+0.701305 s]
/proc/loadavg: 1.09 1.28 1.15 3/77 16016
/proc/meminfo: memFree=1630384/2055920 swapFree=4156360/4192956
[pid=16016] ppid=16014 vsize=1872 CPUtime=0.69
/proc/16016/stat : 16016 (mxc) R 16014 16016 13601 0 -1 4194304 328 0 0 0 69 0 0 0 23 0 1 0 259229394 1916928 311 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519967 0 0 4096 0 0 0 0 17 1 0 0
/proc/16016/statm: 468 311 67 122 0 342 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1872

[startup+1.50139 s]
/proc/loadavg: 1.08 1.28 1.15 2/78 16017
/proc/meminfo: memFree=1629352/2055920 swapFree=4156360/4192956
[pid=16016] ppid=16014 vsize=2004 CPUtime=1.49
/proc/16016/stat : 16016 (mxc) R 16014 16016 13601 0 -1 4194304 361 0 0 0 149 0 0 0 25 0 1 0 259229394 2052096 344 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530832 0 0 4096 0 0 0 0 17 1 0 0
/proc/16016/statm: 501 344 67 122 0 375 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2004

[startup+3.10155 s]
/proc/loadavg: 1.08 1.28 1.15 2/78 16017
/proc/meminfo: memFree=1629096/2055920 swapFree=4156360/4192956
[pid=16016] ppid=16014 vsize=2136 CPUtime=3.09
/proc/16016/stat : 16016 (mxc) R 16014 16016 13601 0 -1 4194304 403 0 0 0 309 0 0 0 25 0 1 0 259229394 2187264 386 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519249 0 0 4096 0 0 0 0 17 1 0 0
/proc/16016/statm: 534 386 67 122 0 408 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2136

[startup+6.30189 s]
/proc/loadavg: 1.07 1.27 1.15 2/78 16017
/proc/meminfo: memFree=1628776/2055920 swapFree=4156360/4192956
[pid=16016] ppid=16014 vsize=2400 CPUtime=6.29
/proc/16016/stat : 16016 (mxc) R 16014 16016 13601 0 -1 4194304 466 0 0 0 629 0 0 0 25 0 1 0 259229394 2457600 449 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134530208 0 0 4096 0 0 0 0 17 1 0 0
/proc/16016/statm: 600 449 67 122 0 474 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2400

[startup+12.7016 s]
/proc/loadavg: 1.07 1.27 1.14 2/78 16017
/proc/meminfo: memFree=1628328/2055920 swapFree=4156360/4192956
[pid=16016] ppid=16014 vsize=2644 CPUtime=12.69
/proc/16016/stat : 16016 (mxc) R 16014 16016 13601 0 -1 4194304 541 0 0 0 1269 0 0 0 25 0 1 0 259229394 2707456 524 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519194 0 0 4096 0 0 0 0 17 1 0 0
/proc/16016/statm: 661 524 67 122 0 535 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2644

[startup+25.5019 s]
/proc/loadavg: 1.05 1.26 1.14 2/78 16017
/proc/meminfo: memFree=1627944/2055920 swapFree=4156360/4192956
[pid=16016] ppid=16014 vsize=3128 CPUtime=25.49
/proc/16016/stat : 16016 (mxc) R 16014 16016 13601 0 -1 4194304 648 0 0 0 2549 0 0 0 25 0 1 0 259229394 3203072 631 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134519252 0 0 4096 0 0 0 0 17 1 0 0
/proc/16016/statm: 782 631 67 122 0 656 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 3128

[startup+51.1016 s]
/proc/loadavg: 1.03 1.23 1.14 2/78 16017
/proc/meminfo: memFree=1627560/2055920 swapFree=4156360/4192956
[pid=16016] ppid=16014 vsize=3604 CPUtime=51.07
/proc/16016/stat : 16016 (mxc) S 16014 16016 13601 0 -1 4194304 766 0 0 0 5107 0 0 0 25 0 1 0 259229394 3690496 749 18446744073709551615 134512640 135013041 4294956672 18446744073709551615 134550682 0 0 4096 0 0 0 0 17 1 0 0
/proc/16016/statm: 901 749 67 122 0 775 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 3604

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

Child status: 10
Real time (s): 51.1067
CPU time (s): 51.0802
CPU user time (s): 51.0732
CPU system time (s): 0.006998
CPU usage (%): 99.9482
Max. virtual memory (cumulated for all children) (KiB): 3604

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 51.0732
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= 768
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= 11
involuntary context switches= 1019

runsolver used 0.048992 second user time and 0.106983 second system time

The end

Launcher Data (download as text)

Begin job on node7 on Sun Apr 29 07:31:58 UTC 2007

IDJOB= 427115
IDBENCH= 20340
IDSOLVER= 174
FILE ID= node7/427115-1177831918

PBS_JOBID= 4718266

Free space on /tmp= 66564 MiB

SOLVER NAME= MXC 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v1665/unif2p-p0.8-v1665-c5178-S1939769766-11-SAT.cnf
COMMAND LINE= /tmp/evaluation/427115-1177831918/mxc /tmp/evaluation/427115-1177831918/instance-427115-1177831918.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node7/watcher-427115-1177831918 -o ROOT/results/node7/solver-427115-1177831918 -C 5000 -W 7500 -M 1800 --output-limit 1,15  /tmp/evaluation/427115-1177831918/mxc /tmp/evaluation/427115-1177831918/instance-427115-1177831918.cnf            

META MD5SUM SOLVER= d41d8cd98f00b204e9800998ecf8427e
MD5SUM BENCH=  6a3b3e57d22696582c0456812681e53c

RANDOM SEED= 585782031

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB

Linux node7.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		: 3000.231
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:       1630856 kB
Buffers:         43728 kB
Cached:         306104 kB
SwapCached:      17164 kB
Active:         231648 kB
Inactive:       143980 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1630856 kB
SwapTotal:     4192956 kB
SwapFree:      4156360 kB
Dirty:             688 kB
Writeback:           0 kB
Mapped:          31388 kB
Slab:            34868 kB
Committed_AS:  8979584 kB
PageTables:       1864 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 node7 on Sun Apr 29 07:32:49 UTC 2007