Trace number 2682764

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) 24.3833 26.4096

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/
miplib2003/normalized-mps-v2-20-10-net12.opb
MD5SUM24a04ed274dd43d443428abf078e95f9
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark214
Best CPU time to get the best result obtained on this benchmark13.9989
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 214
Optimality of the best value was proved YES
Number of variables147395
Total number of constraints26533
Number of constraints which are clauses12
Number of constraints which are cardinality constraints (but not clauses)391
Number of constraints which are nor clauses,nor cardinality constraints26130
Minimum length of a constraint2
Maximum length of a constraint292
Number of terms in the objective function 39
Biggest coefficient in the objective function 20
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 337
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 12288
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 137193
Number of bits of the biggest sum of numbers18
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
1.59/1.62	c constraints 26521/0 clauses 12/0 units 0
1.59/1.62	c vars 147395
1.59/1.62	c objective 39 + 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-2682764-1277478030/watcher-2682764-1277478030 -o /tmp/evaluation-result-2682764-1277478030/solver-2682764-1277478030 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682764-1277478030.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: 0.91 0.95 0.87 2/106 30376
/proc/meminfo: memFree=1604876/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=2136 CPUtime=0
/proc/30376/stat : 30376 (pbct) R 30374 30376 30067 0 -1 4202496 267 0 0 0 0 0 0 0 21 0 1 0 89095936 2187264 186 1992294400 134512640 136421960 4293439920 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30376/statm: 534 186 145 467 0 65 0

[startup+0.067176 s]
/proc/loadavg: 0.91 0.95 0.87 2/106 30376
/proc/meminfo: memFree=1604876/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=3720 CPUtime=0.05
/proc/30376/stat : 30376 (pbct) R 30374 30376 30067 0 -1 4202496 647 0 0 0 5 0 0 0 21 0 1 0 89095936 3809280 566 1992294400 134512640 136421960 4293439920 18446744073709551615 135158942 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30376/statm: 930 566 145 467 0 461 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3720

[startup+0.101178 s]
/proc/loadavg: 0.91 0.95 0.87 2/106 30376
/proc/meminfo: memFree=1604876/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=4512 CPUtime=0.09
/proc/30376/stat : 30376 (pbct) R 30374 30376 30067 0 -1 4202496 864 0 0 0 9 0 0 0 21 0 1 0 89095936 4620288 783 1992294400 134512640 136421960 4293439920 18446744073709551615 135818289 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30376/statm: 1128 783 145 467 0 659 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4512

[startup+0.301198 s]
/proc/loadavg: 0.91 0.95 0.87 2/106 30376
/proc/meminfo: memFree=1604876/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=9660 CPUtime=0.29
/proc/30376/stat : 30376 (pbct) R 30374 30376 30067 0 -1 4202496 2132 0 0 0 28 1 0 0 22 0 1 0 89095936 9891840 2051 1992294400 134512640 136421960 4293439920 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30376/statm: 2415 2051 145 467 0 1946 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9660

[startup+0.701237 s]
/proc/loadavg: 0.91 0.95 0.87 2/106 30376
/proc/meminfo: memFree=1604876/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=19828 CPUtime=0.69
/proc/30376/stat : 30376 (pbct) R 30374 30376 30067 0 -1 4202496 4653 0 0 0 67 2 0 0 23 0 1 0 89095936 20303872 4572 1992294400 134512640 136421960 4293439920 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30376/statm: 4957 4572 145 467 0 4488 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19828

[startup+1.50032 s]
/proc/loadavg: 0.91 0.95 0.87 2/107 30377
/proc/meminfo: memFree=1578704/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=40944 CPUtime=1.48
/proc/30376/stat : 30376 (pbct) R 30374 30376 30067 0 -1 4202496 9946 0 0 0 145 3 0 0 25 0 1 0 89095936 41926656 9865 1992294400 134512640 136421960 4293439920 18446744073709551615 134531604 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30376/statm: 10236 9866 145 467 0 9767 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 40944

[startup+3.10047 s]
/proc/loadavg: 0.91 0.95 0.87 2/107 30377
/proc/meminfo: memFree=1519184/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=174560 CPUtime=3.09
/proc/30376/stat : 30376 (pbct) R 30374 30376 30067 0 -1 4202496 44741 0 0 0 288 21 0 0 25 0 1 0 89095936 178749440 43287 1992294400 134512640 136421960 4293439920 18446744073709551615 135321489 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30376/statm: 43640 43288 193 467 0 43171 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 174560

[startup+6.30079 s]
/proc/loadavg: 0.92 0.95 0.87 2/107 30377
/proc/meminfo: memFree=1231752/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=461716 CPUtime=6.29
/proc/30376/stat : 30376 (pbct) R 30374 30376 30067 0 -1 4202496 119639 0 0 0 573 56 0 0 25 0 1 0 89095936 472797184 113952 1992294400 134512640 136421960 4293439920 18446744073709551615 134757568 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30376/statm: 115429 113953 193 467 0 114960 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 461716

[startup+12.7014 s]
/proc/loadavg: 0.93 0.95 0.87 2/107 30377
/proc/meminfo: memFree=707232/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=941508 CPUtime=12.68
/proc/30376/stat : 30376 (pbct) R 30374 30376 30067 0 -1 4202496 247940 0 0 0 1154 114 0 0 25 0 1 0 89095936 964104192 233996 1992294400 134512640 136421960 4293439920 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30376/statm: 235377 233997 193 467 0 234908 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 941508



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+24.2099 s]
/proc/loadavg: 1.02 0.97 0.88 2/107 30377
/proc/meminfo: memFree=7720/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=1848168 CPUtime=24.19
/proc/30376/stat : 30376 (pbct) R 30374 30376 30067 0 -1 4202496 489009 0 0 0 2186 233 0 0 25 0 1 0 89095936 1892524032 460594 1992294400 134512640 136421960 4293439920 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/30376/statm: 462042 460599 194 467 0 461573 0
Current children cumulated CPU time (s) 24.19
Current children cumulated vsize (KiB) 1848168

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

[startup+25.5008 s]
/proc/loadavg: 1.02 0.97 0.88 1/108 30378
/proc/meminfo: memFree=10676/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=1848168 CPUtime=24.19
/proc/30376/stat : 30376 (pbct) S 30374 30376 30067 0 -1 4194304 489037 0 0 0 2186 233 0 0 25 0 1 0 89095936 1892524032 460622 1992294400 134512640 136421960 4293439920 18446744073709551615 135884462 0 16384 4096 16387 18446604437838705856 0 0 17 0 0 0 0
/proc/30376/statm: 462042 460622 195 467 0 461573 0
Current children cumulated CPU time (s) 24.19
Current children cumulated vsize (KiB) 1848168

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -30376

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

[startup+25.8008 s]
/proc/loadavg: 1.02 0.97 0.88 1/108 30378
/proc/meminfo: memFree=10676/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=1848168 CPUtime=24.19
/proc/30376/stat : 30376 (pbct) S 30374 30376 30067 0 -1 4194304 489037 0 0 0 2186 233 0 0 25 0 1 0 89095936 1892524032 460622 1992294400 134512640 136421960 4293439920 18446744073709551615 135884462 0 16384 4096 16387 18446604437838705856 0 0 17 0 0 0 0
/proc/30376/statm: 462042 460622 195 467 0 461573 0
Current children cumulated CPU time (s) 24.19
Current children cumulated vsize (KiB) 1848168

[startup+26.2018 s]
/proc/loadavg: 1.02 0.97 0.88 1/108 30378
/proc/meminfo: memFree=10676/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=1848168 CPUtime=24.19
/proc/30376/stat : 30376 (pbct) S 30374 30376 30067 0 -1 4194304 489037 0 0 0 2186 233 0 0 25 0 1 0 89095936 1892524032 460622 1992294400 134512640 136421960 4293439920 18446744073709551615 135884462 0 16384 4096 16387 18446604437838705856 0 0 17 0 0 0 0
/proc/30376/statm: 462042 460622 195 467 0 461573 0
Current children cumulated CPU time (s) 24.19
Current children cumulated vsize (KiB) 1848168

[startup+26.3018 s]
/proc/loadavg: 1.02 0.97 0.88 2/107 30378
/proc/meminfo: memFree=843192/2059040 swapFree=4140792/4192956
[pid=30376] ppid=30374 vsize=0 CPUtime=24.28
/proc/30376/stat : 30376 (pbct) R 30374 30376 30067 0 -1 4195332 489037 0 0 0 2186 242 0 0 18 0 1 0 89095936 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 0 0 0 0
/proc/30376/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 24.28
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 26.4096
CPU time (s): 24.3833
CPU user time (s): 21.8607
CPU system time (s): 2.52262
CPU usage (%): 92.3273
Max. virtual memory (cumulated for all children) (KiB): 1848168

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 21.8607
system time used= 2.52262
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 489037
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= 2
involuntary context switches= 58

runsolver used 0.054991 second user time and 0.138978 second system time

The end

Launcher Data 

Begin job on node036 at 2010-06-25 17:00:30
IDJOB=2682764
IDBENCH=1876
IDSOLVER=1192
FILE ID=node036/2682764-1277478030
PBS_JOBID= 11190508
Free space on /tmp= 62372 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-net12.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682764-1277478030/watcher-2682764-1277478030 -o /tmp/evaluation-result-2682764-1277478030/solver-2682764-1277478030 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682764-1277478030.opb

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

MD5SUM BENCH= 24a04ed274dd43d443428abf078e95f9
RANDOM SEED=1562299928

node036.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		: 3000.251
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	: 6000.50
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		: 3000.251
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:       1605404 kB
Buffers:        107268 kB
Cached:         240624 kB
SwapCached:       5400 kB
Active:          84236 kB
Inactive:       277016 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1605404 kB
SwapTotal:     4192956 kB
SwapFree:      4140792 kB
Dirty:            7780 kB
Writeback:           0 kB
AnonPages:       11948 kB
Mapped:          12012 kB
Slab:            70488 kB
PageTables:       4172 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180640 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= 62372 MiB
End job on node036 at 2010-06-25 17:00:57