Trace number 2674725

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
PBPASSolver 2010-06-13? (MO) 17.29 17.3156

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-ship08l.opb
MD5SUM23a6addbd0d76e2876363785ec8dae3c
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark6.94394
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables128490
Total number of constraints704
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints704
Minimum length of a constraint30
Maximum length of a constraint2550
Number of terms in the objective function 128490
Biggest coefficient in the objective function 435455996723200
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 204823519821908064
Number of bits of the sum of numbers in the objective function 58
Biggest number in a constraint 435455996723200
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 204823519821908064
Number of bits of the biggest sum of numbers58
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

17.29/17.30	c 128490 704 0 0 0 0 0 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-2674725-1276799724/watcher-2674725-1276799724 -o /tmp/evaluation-result-2674725-1276799724/solver-2674725-1276799724 -C 1800 -W 2000 -M 1800 run HOME/instance-2674725-1276799724.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: 0.95 0.96 0.97 3/105 23960
/proc/meminfo: memFree=1860208/2059040 swapFree=4139692/4192956
[pid=23960] ppid=23958 vsize=8700 CPUtime=0
/proc/23960/stat : 23960 (run) S 23958 23960 23411 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21266050 8908800 250 1992294400 4194304 4922060 140735605259616 18446744073709551615 235217198213 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23960/statm: 2175 250 211 178 0 68 0

[startup+0.042344 s]
/proc/loadavg: 0.95 0.96 0.97 3/105 23960
/proc/meminfo: memFree=1860208/2059040 swapFree=4139692/4192956
[pid=23960] ppid=23958 vsize=8700 CPUtime=0
/proc/23960/stat : 23960 (run) S 23958 23960 23411 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21266050 8908800 250 1992294400 4194304 4922060 140735605259616 18446744073709551615 235217198213 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23960/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.101349 s]
/proc/loadavg: 0.95 0.96 0.97 3/105 23960
/proc/meminfo: memFree=1860208/2059040 swapFree=4139692/4192956
[pid=23960] ppid=23958 vsize=8700 CPUtime=0
/proc/23960/stat : 23960 (run) S 23958 23960 23411 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21266050 8908800 250 1992294400 4194304 4922060 140735605259616 18446744073709551615 235217198213 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23960/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.301372 s]
/proc/loadavg: 0.95 0.96 0.97 3/105 23960
/proc/meminfo: memFree=1860208/2059040 swapFree=4139692/4192956
[pid=23960] ppid=23958 vsize=8700 CPUtime=0
/proc/23960/stat : 23960 (run) S 23958 23960 23411 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21266050 8908800 250 1992294400 4194304 4922060 140735605259616 18446744073709551615 235217198213 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23960/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.701417 s]
/proc/loadavg: 0.95 0.96 0.97 3/105 23960
/proc/meminfo: memFree=1860208/2059040 swapFree=4139692/4192956
[pid=23960] ppid=23958 vsize=8700 CPUtime=0
/proc/23960/stat : 23960 (run) S 23958 23960 23411 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21266050 8908800 250 1992294400 4194304 4922060 140735605259616 18446744073709551615 235217198213 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23960/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50151 s]
/proc/loadavg: 0.95 0.96 0.97 2/107 23963
/proc/meminfo: memFree=1854860/2059040 swapFree=4139692/4192956
[pid=23960] ppid=23958 vsize=8700 CPUtime=0
/proc/23960/stat : 23960 (run) S 23958 23960 23411 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21266050 8908800 250 1992294400 4194304 4922060 140735605259616 18446744073709551615 235217198213 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23960/statm: 2175 250 211 178 0 68 0
[pid=23962] ppid=23960 vsize=10692 CPUtime=1.48
/proc/23962/stat : 23962 (PBPASSolver) R 23960 23960 23411 0 -1 4202496 2040 0 0 0 56 92 0 0 25 0 1 0 21266051 10948608 1978 1992294400 134512640 134902295 4292006368 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/23962/statm: 2681 1984 253 96 0 1893 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 19392

[startup+3.10069 s]
/proc/loadavg: 0.95 0.96 0.97 2/107 23963
/proc/meminfo: memFree=1850520/2059040 swapFree=4139692/4192956
[pid=23960] ppid=23958 vsize=8700 CPUtime=0
/proc/23960/stat : 23960 (run) S 23958 23960 23411 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21266050 8908800 250 1992294400 4194304 4922060 140735605259616 18446744073709551615 235217198213 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23960/statm: 2175 250 211 178 0 68 0
[pid=23962] ppid=23960 vsize=16836 CPUtime=3.08
/proc/23962/stat : 23962 (PBPASSolver) R 23960 23960 23411 0 -1 4202496 3637 0 0 0 120 188 0 0 25 0 1 0 21266051 17240064 3575 1992294400 134512640 134902295 4292006368 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/23962/statm: 4209 3575 253 96 0 3421 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 25536

[startup+6.30105 s]
/proc/loadavg: 0.96 0.96 0.97 2/107 23963
/proc/meminfo: memFree=1837128/2059040 swapFree=4139692/4192956
[pid=23960] ppid=23958 vsize=8700 CPUtime=0
/proc/23960/stat : 23960 (run) S 23958 23960 23411 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21266050 8908800 250 1992294400 4194304 4922060 140735605259616 18446744073709551615 235217198213 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23960/statm: 2175 250 211 178 0 68 0
[pid=23962] ppid=23960 vsize=28996 CPUtime=6.28
/proc/23962/stat : 23962 (PBPASSolver) R 23960 23960 23411 0 -1 4202496 6735 0 0 0 242 386 0 0 25 0 1 0 21266051 29691904 6673 1992294400 134512640 134902295 4292006368 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/23962/statm: 7249 6673 253 96 0 6461 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 37696

[startup+12.7008 s]
/proc/loadavg: 0.96 0.96 0.97 2/107 23963
/proc/meminfo: memFree=465440/2059040 swapFree=4139692/4192956
[pid=23960] ppid=23958 vsize=8700 CPUtime=0
/proc/23960/stat : 23960 (run) S 23958 23960 23411 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21266050 8908800 250 1992294400 4194304 4922060 140735605259616 18446744073709551615 235217198213 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23960/statm: 2175 250 211 178 0 68 0
[pid=23962] ppid=23960 vsize=1451428 CPUtime=12.69
/proc/23962/stat : 23962 (PBPASSolver) R 23960 23960 23411 0 -1 4202496 369219 0 0 0 643 626 0 0 25 0 1 0 21266051 1486262272 362221 1992294400 134512640 134902295 4292006368 18446744073709551615 134587850 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/23962/statm: 362857 362229 256 96 0 362069 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1460128



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+17.3013 s]
/proc/loadavg: 0.96 0.96 0.97 2/107 23963
/proc/meminfo: memFree=23628/2059040 swapFree=4139692/4192956
[pid=23960] ppid=23958 vsize=8700 CPUtime=0
/proc/23960/stat : 23960 (run) S 23958 23960 23411 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21266050 8908800 250 1992294400 4194304 4922060 140735605259616 18446744073709551615 235217198213 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23960/statm: 2175 250 211 178 0 68 0
[pid=23962] ppid=23960 vsize=1836388 CPUtime=17.29
/proc/23962/stat : 23962 (PBPASSolver) R 23960 23960 23411 0 -1 4202496 466106 0 0 0 954 775 0 0 25 0 1 0 21266051 1880461312 458484 1992294400 134512640 134902295 4292006368 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/23962/statm: 459097 458484 256 96 0 458309 0
Current children cumulated CPU time (s) 17.29
Current children cumulated vsize (KiB) 1845088

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

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

[startup+17.3013 s]
/proc/loadavg: 0.96 0.96 0.97 2/107 23963
/proc/meminfo: memFree=23628/2059040 swapFree=4139692/4192956
[pid=23960] ppid=23958 vsize=8700 CPUtime=0
/proc/23960/stat : 23960 (run) S 23958 23960 23411 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21266050 8908800 250 1992294400 4194304 4922060 140735605259616 18446744073709551615 235217198213 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23960/statm: 2175 250 211 178 0 68 0
[pid=23962] ppid=23960 vsize=1836388 CPUtime=17.29
/proc/23962/stat : 23962 (PBPASSolver) R 23960 23960 23411 0 -1 4202496 466106 0 0 0 954 775 0 0 25 0 1 0 21266051 1880461312 458484 1992294400 134512640 134902295 4292006368 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/23962/statm: 459097 458484 256 96 0 458309 0
Current children cumulated CPU time (s) 17.29
Current children cumulated vsize (KiB) 1845088

Child ended because it received signal 15 (SIGTERM)

# WARNING:
# CPU time reported by wait4() is probably wrong !
# wait4(...,&childrusage) returns 23960 and gives
#  childrusage.ru_utime.tv_sec=0
#  childrusage.ru_utime.tv_usec=0
#  childrusage.ru_stime.tv_sec=0
#  childrusage.ru_stime.tv_usec=2999
# CPU time returned by wait4() is 0.002999
# while last known CPU time is 17.29
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 17.3156
CPU time (s): 17.29
CPU user time (s): 9.54
CPU system time (s): 7.75
CPU usage (%): 99.8522
Max. virtual memory (cumulated for all children) (KiB): 1845088

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 522
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= 3
involuntary context switches= 3

runsolver used 0.029995 second user time and 0.094985 second system time

The end

Launcher Data 

Begin job on node088 at 2010-06-17 20:35:25
IDJOB=2674725
IDBENCH=2397
IDSOLVER=1174
FILE ID=node088/2674725-1276799724
PBS_JOBID= 11176666
Free space on /tmp= 62552 MiB

SOLVER NAME= PBPASSolver 2010-06-13
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-ship08l.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2674725-1276799724/watcher-2674725-1276799724 -o /tmp/evaluation-result-2674725-1276799724/solver-2674725-1276799724 -C 1800 -W 2000 -M 1800  run HOME/instance-2674725-1276799724.opb

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

MD5SUM BENCH= 23a6addbd0d76e2876363785ec8dae3c
RANDOM SEED=614032463

node088.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		: 3000.217
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	: 6000.43
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		: 3000.217
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	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1860728 kB
Buffers:         10016 kB
Cached:          98692 kB
SwapCached:       6484 kB
Active:          25564 kB
Inactive:        96408 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1860728 kB
SwapTotal:     4192956 kB
SwapFree:      4139692 kB
Dirty:            8692 kB
Writeback:           0 kB
AnonPages:       10940 kB
Mapped:          13008 kB
Slab:            54448 kB
PageTables:       3972 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182260 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= 62552 MiB
End job on node088 at 2010-06-17 20:35:44