Trace number 2674572

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) 14.31 14.3365

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos8.opb
MD5SUM61b251578b844a8012695767860b65a7
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-3719
Best CPU time to get the best result obtained on this benchmark8.22675
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -3719
Optimality of the best value was proved YES
Number of variables23264
Total number of constraints46328
Number of constraints which are clauses20804
Number of constraints which are cardinality constraints (but not clauses)4
Number of constraints which are nor clauses,nor cardinality constraints25520
Minimum length of a constraint2
Maximum length of a constraint2747
Number of terms in the objective function 68
Biggest coefficient in the objective function 2700
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 54380
Number of bits of the sum of numbers in the objective function 16
Biggest number in a constraint 2700
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 54380
Number of bits of the biggest sum of numbers16
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

14.31/14.33	c 23264 46328 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-2674572-1276792657/watcher-2674572-1276792657 -o /tmp/evaluation-result-2674572-1276792657/solver-2674572-1276792657 -C 1800 -W 2000 -M 1800 run HOME/instance-2674572-1276792657.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 0.99 2/106 17114
/proc/meminfo: memFree=1804680/2059040 swapFree=4140236/4192956
[pid=17114] ppid=17112 vsize=8700 CPUtime=0
/proc/17114/stat : 17114 (run) S 17112 17114 16575 0 -1 4202496 389 135 0 0 0 0 0 0 25 0 1 0 52917538 8908800 251 1992294400 4194304 4922060 140735739365312 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/17114/statm: 2175 251 211 178 0 68 0

[startup+0.02767 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 17114
/proc/meminfo: memFree=1804680/2059040 swapFree=4140236/4192956
[pid=17114] ppid=17112 vsize=8700 CPUtime=0
/proc/17114/stat : 17114 (run) S 17112 17114 16575 0 -1 4202496 389 135 0 0 0 0 0 0 25 0 1 0 52917538 8908800 251 1992294400 4194304 4922060 140735739365312 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/17114/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.101684 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 17114
/proc/meminfo: memFree=1804680/2059040 swapFree=4140236/4192956
[pid=17114] ppid=17112 vsize=8700 CPUtime=0
/proc/17114/stat : 17114 (run) S 17112 17114 16575 0 -1 4202496 389 135 0 0 0 0 0 0 25 0 1 0 52917538 8908800 251 1992294400 4194304 4922060 140735739365312 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/17114/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.30172 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 17114
/proc/meminfo: memFree=1804680/2059040 swapFree=4140236/4192956
[pid=17114] ppid=17112 vsize=8700 CPUtime=0
/proc/17114/stat : 17114 (run) S 17112 17114 16575 0 -1 4202496 389 135 0 0 0 0 0 0 25 0 1 0 52917538 8908800 251 1992294400 4194304 4922060 140735739365312 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/17114/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.701792 s]
/proc/loadavg: 0.99 0.97 0.99 2/106 17114
/proc/meminfo: memFree=1804680/2059040 swapFree=4140236/4192956
[pid=17114] ppid=17112 vsize=8700 CPUtime=0
/proc/17114/stat : 17114 (run) S 17112 17114 16575 0 -1 4202496 389 135 0 0 0 0 0 0 25 0 1 0 52917538 8908800 251 1992294400 4194304 4922060 140735739365312 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/17114/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50194 s]
/proc/loadavg: 0.99 0.97 0.99 2/108 17117
/proc/meminfo: memFree=1623996/2059040 swapFree=4140236/4192956
[pid=17114] ppid=17112 vsize=8700 CPUtime=0
/proc/17114/stat : 17114 (run) S 17112 17114 16575 0 -1 4202496 389 135 0 0 0 0 0 0 25 0 1 0 52917538 8908800 251 1992294400 4194304 4922060 140735739365312 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/17114/statm: 2175 251 211 178 0 68 0
[pid=17116] ppid=17114 vsize=273636 CPUtime=1.48
/proc/17116/stat : 17116 (PBPASSolver) R 17114 17114 16575 0 -1 4202496 68541 0 0 0 58 90 0 0 25 0 1 0 52917539 280203264 67830 1992294400 134512640 134902295 4294572288 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/17116/statm: 68409 67830 256 96 0 67621 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 282336

[startup+3.10123 s]
/proc/loadavg: 0.99 0.97 0.99 2/108 17117
/proc/meminfo: memFree=1449900/2059040 swapFree=4140236/4192956
[pid=17114] ppid=17112 vsize=8700 CPUtime=0
/proc/17114/stat : 17114 (run) S 17112 17114 16575 0 -1 4202496 389 135 0 0 0 0 0 0 25 0 1 0 52917538 8908800 251 1992294400 4194304 4922060 140735739365312 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/17114/statm: 2175 251 211 178 0 68 0
[pid=17116] ppid=17114 vsize=517860 CPUtime=3.09
/proc/17116/stat : 17116 (PBPASSolver) R 17114 17114 16575 0 -1 4202496 130235 0 0 0 133 176 0 0 25 0 1 0 52917539 530288640 128876 1992294400 134512640 134902295 4294572288 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/17116/statm: 129465 128876 256 96 0 128677 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 526560

[startup+6.30181 s]
/proc/loadavg: 0.99 0.97 0.99 2/108 17117
/proc/meminfo: memFree=962208/2059040 swapFree=4140236/4192956
[pid=17114] ppid=17112 vsize=8700 CPUtime=0
/proc/17114/stat : 17114 (run) S 17112 17114 16575 0 -1 4202496 389 135 0 0 0 0 0 0 25 0 1 0 52917538 8908800 251 1992294400 4194304 4922060 140735739365312 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/17114/statm: 2175 251 211 178 0 68 0
[pid=17116] ppid=17114 vsize=951876 CPUtime=6.28
/proc/17116/stat : 17116 (PBPASSolver) R 17114 17114 16575 0 -1 4202496 239913 0 0 0 307 321 0 0 25 0 1 0 52917539 974721024 237402 1992294400 134512640 134902295 4294572288 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/17116/statm: 237969 237402 256 96 0 237181 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 960576

[startup+12.701 s]
/proc/loadavg: 0.99 0.97 0.99 2/108 17117
/proc/meminfo: memFree=182744/2059040 swapFree=4140236/4192956
[pid=17114] ppid=17112 vsize=8700 CPUtime=0
/proc/17114/stat : 17114 (run) S 17112 17114 16575 0 -1 4202496 389 135 0 0 0 0 0 0 25 0 1 0 52917538 8908800 251 1992294400 4194304 4922060 140735739365312 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/17114/statm: 2175 251 211 178 0 68 0
[pid=17116] ppid=17114 vsize=1695940 CPUtime=12.68
/proc/17116/stat : 17116 (PBPASSolver) R 17114 17114 16575 0 -1 4202496 426922 0 0 0 721 547 0 0 25 0 1 0 52917539 1736642560 423403 1992294400 134512640 134902295 4294572288 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/17116/statm: 423985 423403 256 96 0 423197 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 1704640



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+14.3224 s]
/proc/loadavg: 0.99 0.97 0.99 2/108 17119
/proc/meminfo: memFree=10772/2059040 swapFree=4140236/4192956
[pid=17114] ppid=17112 vsize=8700 CPUtime=0
/proc/17114/stat : 17114 (run) S 17112 17114 16575 0 -1 4202496 389 135 0 0 0 0 0 0 25 0 1 0 52917538 8908800 251 1992294400 4194304 4922060 140735739365312 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/17114/statm: 2175 251 211 178 0 68 0
[pid=17116] ppid=17114 vsize=1841860 CPUtime=14.31
/proc/17116/stat : 17116 (PBPASSolver) R 17114 17114 16575 0 -1 4202496 463414 0 0 0 834 597 0 0 25 0 1 0 52917539 1886064640 459895 1992294400 134512640 134902295 4294572288 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/17116/statm: 460465 459895 256 96 0 459677 0
Current children cumulated CPU time (s) 14.31
Current children cumulated vsize (KiB) 1850560

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

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

[startup+14.3224 s]
/proc/loadavg: 0.99 0.97 0.99 2/108 17119
/proc/meminfo: memFree=10772/2059040 swapFree=4140236/4192956
[pid=17114] ppid=17112 vsize=8700 CPUtime=0
/proc/17114/stat : 17114 (run) S 17112 17114 16575 0 -1 4202496 389 135 0 0 0 0 0 0 25 0 1 0 52917538 8908800 251 1992294400 4194304 4922060 140735739365312 18446744073709551615 236997680261 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/17114/statm: 2175 251 211 178 0 68 0
[pid=17116] ppid=17114 vsize=1841860 CPUtime=14.31
/proc/17116/stat : 17116 (PBPASSolver) R 17114 17114 16575 0 -1 4202496 463414 0 0 0 834 597 0 0 25 0 1 0 52917539 1886064640 459895 1992294400 134512640 134902295 4294572288 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/17116/statm: 460465 459895 256 96 0 459677 0
Current children cumulated CPU time (s) 14.31
Current children cumulated vsize (KiB) 1850560

Child ended because it received signal 15 (SIGTERM)

# WARNING:
# CPU time reported by wait4() is probably wrong !
# wait4(...,&childrusage) returns 17114 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 14.31
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 14.3365
CPU time (s): 14.31
CPU user time (s): 8.34
CPU system time (s): 5.97
CPU usage (%): 99.8151
Max. virtual memory (cumulated for all children) (KiB): 1850560

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= 524
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 0.028995 second user time and 0.097985 second system time

The end

Launcher Data 

Begin job on node027 at 2010-06-17 18:37:37
IDJOB=2674572
IDBENCH=1849
IDSOLVER=1174
FILE ID=node027/2674572-1276792657
PBS_JOBID= 11176573
Free space on /tmp= 62456 MiB

SOLVER NAME= PBPASSolver 2010-06-13
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos8.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2674572-1276792657/watcher-2674572-1276792657 -o /tmp/evaluation-result-2674572-1276792657/solver-2674572-1276792657 -C 1800 -W 2000 -M 1800  run HOME/instance-2674572-1276792657.opb

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

MD5SUM BENCH= 61b251578b844a8012695767860b65a7
RANDOM SEED=655891168

node027.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		: 2800.261
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	: 5600.52
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		: 2800.261
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:       1805200 kB
Buffers:         35036 kB
Cached:         121676 kB
SwapCached:       6092 kB
Active:          37556 kB
Inactive:       132556 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1805200 kB
SwapTotal:     4192956 kB
SwapFree:      4140236 kB
Dirty:            3620 kB
Writeback:           0 kB
AnonPages:       11852 kB
Mapped:          13096 kB
Slab:            61848 kB
PageTables:       3912 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182960 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264952 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62456 MiB
End job on node027 at 2010-06-17 18:37:53