Trace number 2668312

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 NameAnswerobjective functionCPU timeWall clock time
PB/CT 0.1? (MO) 51.5442 53.7875

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-bc1.opb
MD5SUM7349a3a829e674d501313aed23f34764
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables27730
Total number of constraints3375
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)84
Number of constraints which are nor clauses,nor cardinality constraints3291
Minimum length of a constraint3
Maximum length of a constraint5701
Number of terms in the objective function 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1073741824000000000000000000
Number of bits of the biggest number in a constraint 90
Biggest sum of numbers in a constraint 3221975665359866949148487122
Number of bits of the biggest sum of numbers92
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
14.99/15.09	c constraints 3375/0 clauses 0/0 units 0
14.99/15.09	c vars 27730
14.99/15.09	c objective 31 + 0

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668312-1276527353/watcher-2668312-1276527353 -o /tmp/evaluation-result-2668312-1276527353/solver-2668312-1276527353 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668312-1276527353.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.82 1.92 1.64 3/106 32412
/proc/meminfo: memFree=1682100/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=2340 CPUtime=0
/proc/32412/stat : 32412 (pbct) R 32410 32412 32385 0 -1 4202496 291 0 0 0 0 0 0 0 17 0 1 0 28337585 2396160 213 1992294400 134512640 136485738 4292924080 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32412/statm: 585 213 156 482 0 101 0

[startup+0.048802 s]
/proc/loadavg: 1.82 1.92 1.64 3/106 32412
/proc/meminfo: memFree=1682100/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=3132 CPUtime=0.04
/proc/32412/stat : 32412 (pbct) R 32410 32412 32385 0 -1 4202496 504 0 0 0 4 0 0 0 17 0 1 0 28337585 3207168 426 1992294400 134512640 136485738 4292924080 18446744073709551615 135869180 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32412/statm: 783 427 156 482 0 299 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3132

[startup+0.100812 s]
/proc/loadavg: 1.82 1.92 1.64 3/106 32412
/proc/meminfo: memFree=1682100/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=4456 CPUtime=0.09
/proc/32412/stat : 32412 (pbct) R 32410 32412 32385 0 -1 4202496 818 0 0 0 9 0 0 0 17 0 1 0 28337585 4562944 740 1992294400 134512640 136485738 4292924080 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32412/statm: 1114 740 156 482 0 630 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4456

[startup+0.300851 s]
/proc/loadavg: 1.82 1.92 1.64 3/106 32412
/proc/meminfo: memFree=1682100/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=7800 CPUtime=0.29
/proc/32412/stat : 32412 (pbct) R 32410 32412 32385 0 -1 4202496 1572 0 0 0 29 0 0 0 17 0 1 0 28337585 7987200 1494 1992294400 134512640 136485738 4292924080 18446744073709551615 135756039 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32412/statm: 1950 1494 156 482 0 1466 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7800

[startup+0.700929 s]
/proc/loadavg: 1.82 1.92 1.64 3/106 32412
/proc/meminfo: memFree=1682100/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=15188 CPUtime=0.69
/proc/32412/stat : 32412 (pbct) R 32410 32412 32385 0 -1 4202496 3072 0 0 0 68 1 0 0 17 0 1 0 28337585 15552512 2994 1992294400 134512640 136485738 4292924080 18446744073709551615 135170997 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32412/statm: 3797 2994 156 482 0 3313 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15188

[startup+1.50109 s]
/proc/loadavg: 1.82 1.92 1.64 2/107 32413
/proc/meminfo: memFree=1666344/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=29472 CPUtime=1.49
/proc/32412/stat : 32412 (pbct) R 32410 32412 32385 0 -1 4202496 6048 0 0 0 147 2 0 0 18 0 1 0 28337585 30179328 5970 1992294400 134512640 136485738 4292924080 18446744073709551615 135411155 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32412/statm: 7368 5970 156 482 0 6884 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 29472

[startup+3.1014 s]
/proc/loadavg: 1.82 1.92 1.64 2/107 32413
/proc/meminfo: memFree=1649852/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=56868 CPUtime=3.09
/proc/32412/stat : 32412 (pbct) R 32410 32412 32385 0 -1 4202496 11849 0 0 0 304 5 0 0 21 0 1 0 28337585 58232832 11771 1992294400 134512640 136485738 4292924080 18446744073709551615 135177563 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32412/statm: 14217 11771 156 482 0 13733 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 56868

[startup+6.30102 s]
/proc/loadavg: 1.75 1.91 1.64 2/107 32413
/proc/meminfo: memFree=1602360/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=111456 CPUtime=6.29
/proc/32412/stat : 32412 (pbct) R 32410 32412 32385 0 -1 4202496 23265 0 0 0 617 12 0 0 25 0 1 0 28337585 114130944 23187 1992294400 134512640 136485738 4292924080 18446744073709551615 135177570 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32412/statm: 27864 23187 156 482 0 27380 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 111456

[startup+12.7013 s]
/proc/loadavg: 1.69 1.89 1.63 2/107 32413
/proc/meminfo: memFree=1508740/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=219624 CPUtime=12.69
/proc/32412/stat : 32412 (pbct) R 32410 32412 32385 0 -1 4202496 45985 0 0 0 1246 23 0 0 25 0 1 0 28337585 224894976 45907 1992294400 134512640 136485738 4292924080 18446744073709551615 135848557 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32412/statm: 54906 45907 156 482 0 54422 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 219624

[startup+25.5008 s]
/proc/loadavg: 1.54 1.85 1.62 2/107 32413
/proc/meminfo: memFree=965372/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=778168 CPUtime=25.48
/proc/32412/stat : 32412 (pbct) R 32410 32412 32385 0 -1 4202496 193952 0 0 0 2458 90 0 0 25 0 1 0 28337585 796844032 181516 1992294400 134512640 136485738 4292924080 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32412/statm: 194542 181516 197 482 0 194058 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 778168

[startup+51.1008 s]
/proc/loadavg: 1.35 1.78 1.61 2/107 32413
/proc/meminfo: memFree=7728/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=1827796 CPUtime=50.85
/proc/32412/stat : 32412 (pbct) R 32410 32412 32385 0 -1 4202496 482106 0 0 0 4874 211 0 0 25 0 1 0 28337585 1871663104 431793 1992294400 134512640 136485738 4292924080 18446744073709551615 134802835 0 0 4096 16387 0 0 0 17 1 0 0 22
/proc/32412/statm: 456949 431794 197 482 0 456465 0
Current children cumulated CPU time (s) 50.85
Current children cumulated vsize (KiB) 1827796



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+51.6009 s]
/proc/loadavg: 1.35 1.78 1.61 2/107 32413
/proc/meminfo: memFree=10336/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=1844824 CPUtime=51.35
/proc/32412/stat : 32412 (pbct) R 32410 32412 32385 0 -1 4202496 486696 0 0 0 4922 213 0 0 25 0 1 0 28337585 1889099776 436383 1992294400 134512640 136485738 4292924080 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 22
/proc/32412/statm: 461206 436383 197 482 0 460722 0
Current children cumulated CPU time (s) 51.35
Current children cumulated vsize (KiB) 1844824

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -32412

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

[startup+52.8011 s]
/proc/loadavg: 1.35 1.78 1.61 1/108 32414
/proc/meminfo: memFree=10080/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=1844824 CPUtime=51.35
/proc/32412/stat : 32412 (pbct) S 32410 32412 32385 0 -1 4194304 486699 0 0 0 4922 213 0 0 25 0 1 0 28337585 1889099776 436386 1992294400 134512640 136485738 4292924080 18446744073709551615 135319262 0 16384 4096 16387 18446604437843974208 0 0 17 1 0 0 22
/proc/32412/statm: 461206 436386 198 482 0 460722 0
Current children cumulated CPU time (s) 51.35
Current children cumulated vsize (KiB) 1844824

[startup+53.2012 s]
/proc/loadavg: 1.35 1.78 1.61 1/108 32414
/proc/meminfo: memFree=10080/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=1844824 CPUtime=51.35
/proc/32412/stat : 32412 (pbct) S 32410 32412 32385 0 -1 4194304 486699 0 0 0 4922 213 0 0 25 0 1 0 28337585 1889099776 436386 1992294400 134512640 136485738 4292924080 18446744073709551615 135319262 0 16384 4096 16387 18446604437843974208 0 0 17 1 0 0 22
/proc/32412/statm: 461206 436386 198 482 0 460722 0
Current children cumulated CPU time (s) 51.35
Current children cumulated vsize (KiB) 1844824

[startup+53.6013 s]
/proc/loadavg: 1.35 1.78 1.61 1/108 32414
/proc/meminfo: memFree=10080/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=1844824 CPUtime=51.35
/proc/32412/stat : 32412 (pbct) S 32410 32412 32385 0 -1 4194304 486699 0 0 0 4922 213 0 0 25 0 1 0 28337585 1889099776 436386 1992294400 134512640 136485738 4292924080 18446744073709551615 135319262 0 16384 4096 16387 18446604437843974208 0 0 17 1 0 0 22
/proc/32412/statm: 461206 436386 198 482 0 460722 0
Current children cumulated CPU time (s) 51.35
Current children cumulated vsize (KiB) 1844824

[startup+53.7013 s]
/proc/loadavg: 1.35 1.78 1.61 1/108 32414
/proc/meminfo: memFree=10080/2059040 swapFree=4136184/4192956
[pid=32412] ppid=32410 vsize=0 CPUtime=51.45
/proc/32412/stat : 32412 (pbct) R 32410 32412 32385 0 -1 4195332 486699 0 0 0 4922 223 0 0 18 0 1 0 28337585 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 22
/proc/32412/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 51.45
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 53.7875
CPU time (s): 51.5442
CPU user time (s): 49.2275
CPU system time (s): 2.31665
CPU usage (%): 95.8293
Max. virtual memory (cumulated for all children) (KiB): 1844824

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 49.2275
system time used= 2.31665
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 486699
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= 98

runsolver used 0.092985 second user time and 0.267959 second system time

The end

Launcher Data 

Begin job on node011 at 2010-06-14 16:56:00
IDJOB=2668312
IDBENCH=2316
IDSOLVER=1170
FILE ID=node011/2668312-1276527353
PBS_JOBID= 11173454
Free space on /tmp= 62192 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-bc1.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668312-1276527353/watcher-2668312-1276527353 -o /tmp/evaluation-result-2668312-1276527353/solver-2668312-1276527353 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668312-1276527353.opb

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

MD5SUM BENCH= 7349a3a829e674d501313aed23f34764
RANDOM SEED=1491819652

node011.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.264
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.52
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		: 3000.264
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1682372 kB
Buffers:        100644 kB
Cached:         196364 kB
SwapCached:       9796 kB
Active:         170584 kB
Inactive:       138620 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1682372 kB
SwapTotal:     4192956 kB
SwapFree:      4136184 kB
Dirty:           77084 kB
Writeback:           0 kB
AnonPages:       10772 kB
Mapped:           9032 kB
Slab:            45392 kB
PageTables:       4012 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180800 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62192 MiB
End job on node011 at 2010-06-14 16:56:54