Trace number 2682115

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) 27.4608 29.4962

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos19.opb
MD5SUM1ef5c8e94b66b7ed63dffc6923ecd901
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark-3
Best CPU time to get the best result obtained on this benchmark1798.31
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -3
Optimality of the best value was proved NO
Number of variables1041679
Total number of constraints127860
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)80
Number of constraints which are nor clauses,nor cardinality constraints127780
Minimum length of a constraint2
Maximum length of a constraint275
Number of terms in the objective function 1611
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 1611
Number of bits of the sum of numbers in the objective function 11
Biggest number in a constraint 24576
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 98256
Number of bits of the biggest sum of numbers17
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
9.09/9.14	c constraints 127860/0 clauses 0/0 units 0
9.09/9.14	c vars 1041679
9.09/9.14	c objective 1611 + -1611

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-2682115-1277477428/watcher-2682115-1277477428 -o /tmp/evaluation-result-2682115-1277477428/solver-2682115-1277477428 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682115-1277477428.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 0.97 0.82 3/106 28290
/proc/meminfo: memFree=1765292/2059040 swapFree=4140488/4192956
[pid=28290] ppid=28288 vsize=2280 CPUtime=0
/proc/28290/stat : 28290 (pbct) R 28288 28290 28186 0 -1 4202496 301 0 0 0 0 0 0 0 20 0 1 0 89033949 2334720 221 1992294400 134512640 136421960 4290409328 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28290/statm: 570 221 145 467 0 101 0

[startup+0.0979789 s]
/proc/loadavg: 0.99 0.97 0.82 3/106 28290
/proc/meminfo: memFree=1765292/2059040 swapFree=4140488/4192956
[pid=28290] ppid=28288 vsize=4656 CPUtime=0.09
/proc/28290/stat : 28290 (pbct) R 28288 28290 28186 0 -1 4202496 897 0 0 0 9 0 0 0 20 0 1 0 89033949 4767744 817 1992294400 134512640 136421960 4290409328 18446744073709551615 135377339 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28290/statm: 1164 818 145 467 0 695 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4656

[startup+0.10198 s]
/proc/loadavg: 0.99 0.97 0.82 3/106 28290
/proc/meminfo: memFree=1765292/2059040 swapFree=4140488/4192956
[pid=28290] ppid=28288 vsize=4788 CPUtime=0.09
/proc/28290/stat : 28290 (pbct) R 28288 28290 28186 0 -1 4202496 924 0 0 0 9 0 0 0 20 0 1 0 89033949 4902912 844 1992294400 134512640 136421960 4290409328 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28290/statm: 1197 844 145 467 0 728 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4788

[startup+0.302013 s]
/proc/loadavg: 0.99 0.97 0.82 3/106 28290
/proc/meminfo: memFree=1765292/2059040 swapFree=4140488/4192956
[pid=28290] ppid=28288 vsize=10200 CPUtime=0.29
/proc/28290/stat : 28290 (pbct) R 28288 28290 28186 0 -1 4202496 2268 0 0 0 29 0 0 0 20 0 1 0 89033949 10444800 2188 1992294400 134512640 136421960 4290409328 18446744073709551615 135203787 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28290/statm: 2550 2188 145 467 0 2081 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10200

[startup+0.701082 s]
/proc/loadavg: 0.99 0.97 0.82 3/106 28290
/proc/meminfo: memFree=1765292/2059040 swapFree=4140488/4192956
[pid=28290] ppid=28288 vsize=20916 CPUtime=0.69
/proc/28290/stat : 28290 (pbct) R 28288 28290 28186 0 -1 4202496 4921 0 0 0 67 2 0 0 20 0 1 0 89033949 21417984 4841 1992294400 134512640 136421960 4290409328 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28290/statm: 5229 4841 145 467 0 4760 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 20916

[startup+1.50121 s]
/proc/loadavg: 0.99 0.97 0.82 2/107 28291
/proc/meminfo: memFree=1737012/2059040 swapFree=4140488/4192956
[pid=28290] ppid=28288 vsize=42164 CPUtime=1.49
/proc/28290/stat : 28290 (pbct) R 28288 28290 28186 0 -1 4202496 10278 0 0 0 144 5 0 0 22 0 1 0 89033949 43175936 10165 1992294400 134512640 136421960 4290409328 18446744073709551615 135873694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28290/statm: 10541 10165 145 467 0 10072 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 42164

[startup+3.10148 s]
/proc/loadavg: 0.99 0.97 0.82 2/107 28291
/proc/meminfo: memFree=1708864/2059040 swapFree=4140488/4192956
[pid=28290] ppid=28288 vsize=85056 CPUtime=3.09
/proc/28290/stat : 28290 (pbct) R 28288 28290 28186 0 -1 4202496 21017 0 0 0 299 10 0 0 25 0 1 0 89033949 87097344 20839 1992294400 134512640 136421960 4290409328 18446744073709551615 135873694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28290/statm: 21264 20840 145 467 0 20795 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 85056

[startup+6.30101 s]
/proc/loadavg: 0.99 0.97 0.82 2/107 28291
/proc/meminfo: memFree=1618096/2059040 swapFree=4140488/4192956
[pid=28290] ppid=28288 vsize=175260 CPUtime=6.29
/proc/28290/stat : 28290 (pbct) R 28288 28290 28186 0 -1 4202496 43610 0 0 0 608 21 0 0 25 0 1 0 89033949 179466240 43432 1992294400 134512640 136421960 4290409328 18446744073709551615 135818247 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28290/statm: 43815 43432 145 467 0 43346 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 175260

[startup+12.7011 s]
/proc/loadavg: 0.99 0.97 0.82 2/107 28291
/proc/meminfo: memFree=1255768/2059040 swapFree=4140488/4192956
[pid=28290] ppid=28288 vsize=581168 CPUtime=12.69
/proc/28290/stat : 28290 (pbct) R 28288 28290 28186 0 -1 4202496 148210 0 0 0 1198 71 0 0 25 0 1 0 89033949 595116032 142866 1992294400 134512640 136421960 4290409328 18446744073709551615 135301582 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28290/statm: 145292 142867 194 467 0 144823 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 581168

[startup+25.5012 s]
/proc/loadavg: 0.99 0.97 0.82 2/107 28291
/proc/meminfo: memFree=109636/2059040 swapFree=4140488/4192956
[pid=28290] ppid=28288 vsize=1709184 CPUtime=25.49
/proc/28290/stat : 28290 (pbct) R 28288 28290 28186 0 -1 4202496 444882 0 0 0 2326 223 0 0 25 0 1 0 89033949 1750204416 420156 1992294400 134512640 136421960 4290409328 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28290/statm: 427296 420157 194 467 0 426827 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1709184



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+27.304 s]
/proc/loadavg: 0.99 0.97 0.82 2/107 28291
/proc/meminfo: memFree=10584/2059040 swapFree=4139556/4192956
[pid=28290] ppid=28288 vsize=1847388 CPUtime=27.27
/proc/28290/stat : 28290 (pbct) R 28288 28290 28186 0 -1 4202496 480836 0 0 0 2483 244 0 0 25 0 1 0 89033949 1891725312 456110 1992294400 134512640 136421960 4290409328 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 1
/proc/28290/statm: 461847 456111 194 467 0 461378 0
Current children cumulated CPU time (s) 27.27
Current children cumulated vsize (KiB) 1847388

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -28290

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

[startup+28.6087 s]
/proc/loadavg: 0.91 0.95 0.82 1/108 28292
/proc/meminfo: memFree=9956/2059040 swapFree=4139556/4192956
[pid=28290] ppid=28288 vsize=1847388 CPUtime=27.27
/proc/28290/stat : 28290 (pbct) S 28288 28290 28186 0 -1 4194304 480844 0 0 0 2483 244 0 0 25 0 1 0 89033949 1891725312 456118 1992294400 134512640 136421960 4290409328 18446744073709551615 135884462 0 16384 4096 16387 18446604437825447744 0 0 17 1 0 0 1
/proc/28290/statm: 461847 456118 195 467 0 461378 0
Current children cumulated CPU time (s) 27.27
Current children cumulated vsize (KiB) 1847388

[startup+29.0008 s]
/proc/loadavg: 0.91 0.95 0.82 1/108 28292
/proc/meminfo: memFree=9956/2059040 swapFree=4139556/4192956
[pid=28290] ppid=28288 vsize=1847388 CPUtime=27.27
/proc/28290/stat : 28290 (pbct) S 28288 28290 28186 0 -1 4194304 480844 0 0 0 2483 244 0 0 25 0 1 0 89033949 1891725312 456118 1992294400 134512640 136421960 4290409328 18446744073709551615 135884462 0 16384 4096 16387 18446604437825447744 0 0 17 1 0 0 1
/proc/28290/statm: 461847 456118 195 467 0 461378 0
Current children cumulated CPU time (s) 27.27
Current children cumulated vsize (KiB) 1847388

[startup+29.4009 s]
/proc/loadavg: 0.91 0.95 0.82 1/108 28292
/proc/meminfo: memFree=9956/2059040 swapFree=4139556/4192956
[pid=28290] ppid=28288 vsize=0 CPUtime=27.35
/proc/28290/stat : 28290 (pbct) R 28288 28290 28186 0 -1 4195332 480844 0 0 0 2483 252 0 0 18 0 1 0 89033949 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 1
/proc/28290/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 27.35
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 29.4962
CPU time (s): 27.4608
CPU user time (s): 24.8382
CPU system time (s): 2.6226
CPU usage (%): 93.0997
Max. virtual memory (cumulated for all children) (KiB): 1847388

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.8382
system time used= 2.6226
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 480844
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= 62

runsolver used 0.043993 second user time and 0.170974 second system time

The end

Launcher Data 

Begin job on node055 at 2010-06-25 16:50:30
IDJOB=2682115
IDBENCH=1845
IDSOLVER=1192
FILE ID=node055/2682115-1277477428
PBS_JOBID= 11190492
Free space on /tmp= 62328 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos19.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682115-1277477428/watcher-2682115-1277477428 -o /tmp/evaluation-result-2682115-1277477428/solver-2682115-1277477428 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682115-1277477428.opb

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

MD5SUM BENCH= 1ef5c8e94b66b7ed63dffc6923ecd901
RANDOM SEED=311138476

node055.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		: 3000.258
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	: 6000.51
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		: 3000.258
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1765820 kB
Buffers:         44308 kB
Cached:         150332 kB
SwapCached:       5324 kB
Active:         100104 kB
Inactive:       107436 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1765820 kB
SwapTotal:     4192956 kB
SwapFree:      4140488 kB
Dirty:           37548 kB
Writeback:           0 kB
AnonPages:       11496 kB
Mapped:          12016 kB
Slab:            63824 kB
PageTables:       4148 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182844 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= 62324 MiB
End job on node055 at 2010-06-25 16:51:00