Trace number 2681906

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 fixed? (MO) 48.0747 50.2115

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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
14.88/14.90	c constraints 3375/0 clauses 0/0 units 0
14.88/14.90	c vars 27730
14.88/14.90	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-2681906-1277484712/watcher-2681906-1277484712 -o /tmp/evaluation-result-2681906-1277484712/solver-2681906-1277484712 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681906-1277484712.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: 0.99 0.98 0.91 3/106 29359
/proc/meminfo: memFree=1715260/2059040 swapFree=4140344/4192956
[pid=29359] ppid=29357 vsize=2268 CPUtime=0
/proc/29359/stat : 29359 (pbct) R 29357 29359 28871 0 -1 4202496 283 0 0 0 0 0 0 0 18 0 1 0 89764468 2322432 203 1992294400 134512640 136421960 4293852224 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29359/statm: 567 204 146 467 0 98 0

[startup+0.065863 s]
/proc/loadavg: 0.99 0.98 0.91 3/106 29359
/proc/meminfo: memFree=1715260/2059040 swapFree=4140344/4192956
[pid=29359] ppid=29357 vsize=3588 CPUtime=0.06
/proc/29359/stat : 29359 (pbct) R 29357 29359 28871 0 -1 4202496 610 0 0 0 6 0 0 0 20 0 1 0 89764468 3674112 530 1992294400 134512640 136421960 4293852224 18446744073709551615 135372694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29359/statm: 897 530 146 467 0 428 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3588

[startup+0.101865 s]
/proc/loadavg: 0.99 0.98 0.91 3/106 29359
/proc/meminfo: memFree=1715260/2059040 swapFree=4140344/4192956
[pid=29359] ppid=29357 vsize=4540 CPUtime=0.1
/proc/29359/stat : 29359 (pbct) R 29357 29359 28871 0 -1 4202496 829 0 0 0 10 0 0 0 20 0 1 0 89764468 4648960 749 1992294400 134512640 136421960 4293852224 18446744073709551615 135160309 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29359/statm: 1135 749 146 467 0 666 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 4540

[startup+0.300888 s]
/proc/loadavg: 0.99 0.98 0.91 3/106 29359
/proc/meminfo: memFree=1715260/2059040 swapFree=4140344/4192956
[pid=29359] ppid=29357 vsize=8052 CPUtime=0.29
/proc/29359/stat : 29359 (pbct) R 29357 29359 28871 0 -1 4202496 1634 0 0 0 29 0 0 0 20 0 1 0 89764468 8245248 1554 1992294400 134512640 136421960 4293852224 18446744073709551615 135873694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29359/statm: 2013 1554 146 467 0 1544 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8052

[startup+0.700933 s]
/proc/loadavg: 0.99 0.98 0.91 3/106 29359
/proc/meminfo: memFree=1715260/2059040 swapFree=4140344/4192956
[pid=29359] ppid=29357 vsize=15248 CPUtime=0.69
/proc/29359/stat : 29359 (pbct) R 29357 29359 28871 0 -1 4202496 3111 0 0 0 68 1 0 0 20 0 1 0 89764468 15613952 3031 1992294400 134512640 136421960 4293852224 18446744073709551615 135372727 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29359/statm: 3812 3031 146 467 0 3343 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 15248

[startup+1.50103 s]
/proc/loadavg: 0.99 0.98 0.91 2/107 29360
/proc/meminfo: memFree=1699876/2059040 swapFree=4140344/4192956
[pid=29359] ppid=29357 vsize=30276 CPUtime=1.49
/proc/29359/stat : 29359 (pbct) R 29357 29359 28871 0 -1 4202496 6221 0 0 0 147 2 0 0 23 0 1 0 89764468 31002624 6141 1992294400 134512640 136421960 4293852224 18446744073709551615 135651452 0 0 4096 0 0 0 0 17 0 0 0 0
/proc/29359/statm: 7569 6141 146 467 0 7100 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 30276

[startup+3.10119 s]
/proc/loadavg: 0.99 0.98 0.91 2/107 29360
/proc/meminfo: memFree=1683508/2059040 swapFree=4140344/4192956
[pid=29359] ppid=29357 vsize=58380 CPUtime=3.08
/proc/29359/stat : 29359 (pbct) R 29357 29359 28871 0 -1 4202496 12183 0 0 0 302 6 0 0 25 0 1 0 89764468 59781120 12103 1992294400 134512640 136421960 4293852224 18446744073709551615 135806084 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29359/statm: 14595 12103 146 467 0 14126 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 58380

[startup+6.30155 s]
/proc/loadavg: 0.99 0.98 0.91 2/107 29360
/proc/meminfo: memFree=1636388/2059040 swapFree=4140344/4192956
[pid=29359] ppid=29357 vsize=113720 CPUtime=6.28
/proc/29359/stat : 29359 (pbct) R 29357 29359 28871 0 -1 4202496 23733 0 0 0 615 13 0 0 25 0 1 0 89764468 116449280 23653 1992294400 134512640 136421960 4293852224 18446744073709551615 135830543 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29359/statm: 28430 23653 146 467 0 27961 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 113720

[startup+12.7012 s]
/proc/loadavg: 0.99 0.98 0.91 2/107 29362
/proc/meminfo: memFree=1542148/2059040 swapFree=4140344/4192956
[pid=29359] ppid=29357 vsize=222668 CPUtime=12.68
/proc/29359/stat : 29359 (pbct) R 29357 29359 28871 0 -1 4202496 46561 0 0 0 1244 24 0 0 25 0 1 0 89764468 228012032 46481 1992294400 134512640 136421960 4293852224 18446744073709551615 135160329 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29359/statm: 55667 46481 146 467 0 55198 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 222668

[startup+25.5017 s]
/proc/loadavg: 0.99 0.98 0.91 2/107 29362
/proc/meminfo: memFree=951040/2059040 swapFree=4140344/4192956
[pid=29359] ppid=29357 vsize=819380 CPUtime=25.48
/proc/29359/stat : 29359 (pbct) R 29357 29359 28871 0 -1 4202496 206633 0 0 0 2452 96 0 0 25 0 1 0 89764468 839045120 192564 1992294400 134512640 136421960 4293852224 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29359/statm: 204845 192564 195 467 0 204376 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 819380



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+47.9011 s]
/proc/loadavg: 0.99 0.98 0.91 2/107 29362
/proc/meminfo: memFree=10868/2059040 swapFree=4140236/4192956
[pid=29359] ppid=29357 vsize=1844488 CPUtime=47.89
/proc/29359/stat : 29359 (pbct) R 29357 29359 28871 0 -1 4202496 486677 0 0 0 4571 218 0 0 24 0 1 0 89764468 1888755712 436329 1992294400 134512640 136421960 4293852224 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 11
/proc/29359/statm: 461122 436330 195 467 0 460653 0
Current children cumulated CPU time (s) 47.89
Current children cumulated vsize (KiB) 1844488

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -29359

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

[startup+49.5013 s]
/proc/loadavg: 0.91 0.97 0.90 1/108 29363
/proc/meminfo: memFree=10612/2059040 swapFree=4140236/4192956
[pid=29359] ppid=29357 vsize=1844488 CPUtime=47.89
/proc/29359/stat : 29359 (pbct) S 29357 29359 28871 0 -1 4194304 486682 0 0 0 4571 218 0 0 24 0 1 0 89764468 1888755712 436334 1992294400 134512640 136421960 4293852224 18446744073709551615 135884462 0 16384 4096 16387 18446604437835827392 0 0 17 1 0 0 11
/proc/29359/statm: 461122 436334 196 467 0 460653 0
Current children cumulated CPU time (s) 47.89
Current children cumulated vsize (KiB) 1844488

[startup+49.9013 s]
/proc/loadavg: 0.91 0.97 0.90 1/108 29363
/proc/meminfo: memFree=10612/2059040 swapFree=4140236/4192956
[pid=29359] ppid=29357 vsize=1844488 CPUtime=47.89
/proc/29359/stat : 29359 (pbct) S 29357 29359 28871 0 -1 4194304 486682 0 0 0 4571 218 0 0 24 0 1 0 89764468 1888755712 436334 1992294400 134512640 136421960 4293852224 18446744073709551615 135884462 0 16384 4096 16387 18446604437835827392 0 0 17 1 0 0 11
/proc/29359/statm: 461122 436334 196 467 0 460653 0
Current children cumulated CPU time (s) 47.89
Current children cumulated vsize (KiB) 1844488

[startup+50.1014 s]
/proc/loadavg: 0.91 0.97 0.90 1/108 29363
/proc/meminfo: memFree=10612/2059040 swapFree=4140236/4192956
[pid=29359] ppid=29357 vsize=0 CPUtime=47.95
/proc/29359/stat : 29359 (pbct) R 29357 29359 28871 0 -1 4195332 486682 0 0 0 4571 224 0 0 18 0 1 0 89764468 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 11
/proc/29359/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 47.95
Current children cumulated vsize (KiB) 0

[startup+50.2014 s]
/proc/loadavg: 0.91 0.97 0.90 1/108 29363
/proc/meminfo: memFree=10612/2059040 swapFree=4140236/4192956
[pid=29359] ppid=29357 vsize=0 CPUtime=48.05
/proc/29359/stat : 29359 (pbct) R 29357 29359 28871 0 -1 4195332 486682 0 0 0 4571 234 0 0 18 0 1 0 89764468 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 11
/proc/29359/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 48.05
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 50.2115
CPU time (s): 48.0747
CPU user time (s): 45.7161
CPU system time (s): 2.35864
CPU usage (%): 95.7444
Max. virtual memory (cumulated for all children) (KiB): 1844488

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 45.7161
system time used= 2.35864
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 486682
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= 106

runsolver used 0.092985 second user time and 0.245962 second system time

The end

Launcher Data 

Begin job on node042 at 2010-06-25 18:52:00
IDJOB=2681906
IDBENCH=2316
IDSOLVER=1192
FILE ID=node042/2681906-1277484712
PBS_JOBID= 11190503
Free space on /tmp= 62180 MiB

SOLVER NAME= PB/CT 0.1 fixed
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-2681906-1277484712/watcher-2681906-1277484712 -o /tmp/evaluation-result-2681906-1277484712/solver-2681906-1277484712 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681906-1277484712.opb

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

MD5SUM BENCH= 7349a3a829e674d501313aed23f34764
RANDOM SEED=129411497

node042.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		: 3000.213
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	: 6000.42
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
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:       1715788 kB
Buffers:         46784 kB
Cached:         192080 kB
SwapCached:       5360 kB
Active:         141496 kB
Inactive:       110256 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1715788 kB
SwapTotal:     4192956 kB
SwapFree:      4140344 kB
Dirty:           76924 kB
Writeback:           0 kB
AnonPages:       11572 kB
Mapped:          12016 kB
Slab:            69656 kB
PageTables:       4172 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183104 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= 62176 MiB
End job on node042 at 2010-06-25 18:52:50