Trace number 2674223

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) 28.77 28.8159

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/web/www.nlsde.buaa.edu.cn/
~kexu/benchmarks/frb40-19-opb/normalized-frb40-19-3.opb
MD5SUMc9380923d34e254cfa512f89027f1d42
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark-35
Best CPU time to get the best result obtained on this benchmark1800.04
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -40
Optimality of the best value was proved NO
Number of variables760
Total number of constraints41095
Number of constraints which are clauses41095
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint2
Number of terms in the objective function 760
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 760
Number of bits of the sum of numbers in the objective function 10
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 760
Number of bits of the biggest sum of numbers10
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data


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-2674223-1276798733/watcher-2674223-1276798733 -o /tmp/evaluation-result-2674223-1276798733/solver-2674223-1276798733 -C 1800 -W 2000 -M 1800 run HOME/instance-2674223-1276798733.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: 0.92 0.98 0.99 3/107 24481
/proc/meminfo: memFree=1742508/2059040 swapFree=4183928/4192956
[pid=24481] ppid=24479 vsize=8700 CPUtime=0
/proc/24481/stat : 24481 (run) S 24479 24481 24456 0 -1 4202496 391 134 0 0 0 0 0 0 20 0 1 0 21164035 8908800 251 1992294400 4194304 4922060 140737453327536 18446744073709551615 262178184325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24481/statm: 2175 251 211 178 0 68 0

[startup+0.0373959 s]
/proc/loadavg: 0.92 0.98 0.99 3/107 24481
/proc/meminfo: memFree=1742508/2059040 swapFree=4183928/4192956
[pid=24481] ppid=24479 vsize=8700 CPUtime=0
/proc/24481/stat : 24481 (run) S 24479 24481 24456 0 -1 4202496 391 134 0 0 0 0 0 0 20 0 1 0 21164035 8908800 251 1992294400 4194304 4922060 140737453327536 18446744073709551615 262178184325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24481/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.101402 s]
/proc/loadavg: 0.92 0.98 0.99 3/107 24481
/proc/meminfo: memFree=1742508/2059040 swapFree=4183928/4192956
[pid=24481] ppid=24479 vsize=8700 CPUtime=0
/proc/24481/stat : 24481 (run) S 24479 24481 24456 0 -1 4202496 391 134 0 0 0 0 0 0 20 0 1 0 21164035 8908800 251 1992294400 4194304 4922060 140737453327536 18446744073709551615 262178184325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24481/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.301424 s]
/proc/loadavg: 0.92 0.98 0.99 3/107 24481
/proc/meminfo: memFree=1742508/2059040 swapFree=4183928/4192956
[pid=24481] ppid=24479 vsize=8700 CPUtime=0
/proc/24481/stat : 24481 (run) S 24479 24481 24456 0 -1 4202496 391 134 0 0 0 0 0 0 20 0 1 0 21164035 8908800 251 1992294400 4194304 4922060 140737453327536 18446744073709551615 262178184325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24481/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.701468 s]
/proc/loadavg: 0.92 0.98 0.99 3/107 24481
/proc/meminfo: memFree=1742508/2059040 swapFree=4183928/4192956
[pid=24481] ppid=24479 vsize=8700 CPUtime=0
/proc/24481/stat : 24481 (run) S 24479 24481 24456 0 -1 4202496 391 134 0 0 0 0 0 0 20 0 1 0 21164035 8908800 251 1992294400 4194304 4922060 140737453327536 18446744073709551615 262178184325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24481/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50156 s]
/proc/loadavg: 0.92 0.98 0.99 2/108 24484
/proc/meminfo: memFree=1526740/2059040 swapFree=4183928/4192956
[pid=24481] ppid=24479 vsize=8700 CPUtime=0
/proc/24481/stat : 24481 (run) S 24479 24481 24456 0 -1 4202496 391 134 0 0 0 0 0 0 20 0 1 0 21164035 8908800 251 1992294400 4194304 4922060 140737453327536 18446744073709551615 262178184325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24481/statm: 2175 251 211 178 0 68 0
[pid=24483] ppid=24481 vsize=316036 CPUtime=1.48
/proc/24483/stat : 24483 (PBPASSolver) R 24481 24481 24456 0 -1 4202496 78476 0 0 0 61 87 0 0 25 0 1 0 21164035 323620864 78412 1992294400 134512640 134902295 4293124352 18446744073709551615 134520305 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/24483/statm: 79009 78413 256 96 0 78221 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 324736

[startup+3.10173 s]
/proc/loadavg: 0.92 0.98 0.99 2/108 24484
/proc/meminfo: memFree=1318048/2059040 swapFree=4183928/4192956
[pid=24481] ppid=24479 vsize=8700 CPUtime=0
/proc/24481/stat : 24481 (run) S 24479 24481 24456 0 -1 4202496 391 134 0 0 0 0 0 0 20 0 1 0 21164035 8908800 251 1992294400 4194304 4922060 140737453327536 18446744073709551615 262178184325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24481/statm: 2175 251 211 178 0 68 0
[pid=24483] ppid=24481 vsize=597572 CPUtime=3.09
/proc/24483/stat : 24483 (PBPASSolver) R 24481 24481 24456 0 -1 4202496 148853 0 0 0 144 165 0 0 25 0 1 0 21164035 611913728 148789 1992294400 134512640 134902295 4293124352 18446744073709551615 134520305 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/24483/statm: 149393 148791 256 96 0 148605 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 606272

[startup+6.30109 s]
/proc/loadavg: 0.93 0.98 0.99 2/108 24484
/proc/meminfo: memFree=796008/2059040 swapFree=4183928/4192956
[pid=24481] ppid=24479 vsize=8700 CPUtime=0
/proc/24481/stat : 24481 (run) S 24479 24481 24456 0 -1 4202496 391 134 0 0 0 0 0 0 20 0 1 0 21164035 8908800 251 1992294400 4194304 4922060 140737453327536 18446744073709551615 262178184325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24481/statm: 2175 251 211 178 0 68 0
[pid=24483] ppid=24481 vsize=1071940 CPUtime=6.28
/proc/24483/stat : 24483 (PBPASSolver) R 24481 24481 24456 0 -1 4202496 267477 0 0 0 328 300 0 0 25 0 1 0 21164035 1097666560 267413 1992294400 134512640 134902295 4293124352 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/24483/statm: 267985 267413 256 96 0 267197 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 1080640

[startup+12.7008 s]
/proc/loadavg: 0.93 0.98 0.99 2/108 24484
/proc/meminfo: memFree=83256/2059040 swapFree=4183928/4192956
[pid=24481] ppid=24479 vsize=8700 CPUtime=0
/proc/24481/stat : 24481 (run) S 24479 24481 24456 0 -1 4202496 391 134 0 0 0 0 0 0 20 0 1 0 21164035 8908800 251 1992294400 4194304 4922060 140737453327536 18446744073709551615 262178184325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24481/statm: 2175 251 211 178 0 68 0
[pid=24483] ppid=24481 vsize=1671992 CPUtime=12.68
/proc/24483/stat : 24483 (PBPASSolver) R 24481 24481 24456 0 -1 4202496 419113 0 0 0 806 462 0 0 25 0 1 0 21164035 1712119808 417369 1992294400 134512640 134902295 4293124352 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/24483/statm: 417998 417369 260 96 0 417210 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 1680692

[startup+25.5012 s]
/proc/loadavg: 0.95 0.98 0.99 2/108 24484
/proc/meminfo: memFree=9928/2059040 swapFree=4140764/4192956
[pid=24481] ppid=24479 vsize=8700 CPUtime=0
/proc/24481/stat : 24481 (run) S 24479 24481 24456 0 -1 4202496 391 134 0 0 0 0 0 0 20 0 1 0 21164035 8908800 251 1992294400 4194304 4922060 140737453327536 18446744073709551615 262178184325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24481/statm: 2175 251 211 178 0 68 0
[pid=24483] ppid=24481 vsize=1809848 CPUtime=25.45
/proc/24483/stat : 24483 (PBPASSolver) R 24481 24481 24456 0 -1 4202496 453515 0 0 0 2069 476 0 0 25 0 1 0 21164035 1853284352 451771 1992294400 134512640 134902295 4293124352 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 2
/proc/24483/statm: 452462 451771 261 96 0 451674 0
Current children cumulated CPU time (s) 25.45
Current children cumulated vsize (KiB) 1818548



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+28.8016 s]
/proc/loadavg: 1.03 1.00 1.00 2/108 24484
/proc/meminfo: memFree=9760/2059040 swapFree=4140764/4192956
[pid=24481] ppid=24479 vsize=8700 CPUtime=0
/proc/24481/stat : 24481 (run) S 24479 24481 24456 0 -1 4202496 391 134 0 0 0 0 0 0 20 0 1 0 21164035 8908800 251 1992294400 4194304 4922060 140737453327536 18446744073709551615 262178184325 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/24481/statm: 2175 251 211 178 0 68 0
[pid=24483] ppid=24481 vsize=1834948 CPUtime=28.77
/proc/24483/stat : 24483 (PBPASSolver) R 24481 24481 24456 0 -1 4202496 459805 0 0 0 2397 480 0 0 25 0 1 0 21164035 1878986752 458061 1992294400 134512640 134902295 4293124352 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 2
/proc/24483/statm: 458737 458061 261 96 0 457949 0
Current children cumulated CPU time (s) 28.77
Current children cumulated vsize (KiB) 1843648

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

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

Child ended because it received signal 15 (SIGTERM)

# WARNING:
# CPU time reported by wait4() is probably wrong !
# wait4(...,&childrusage) returns 24481 and gives
#  childrusage.ru_utime.tv_sec=0
#  childrusage.ru_utime.tv_usec=999
#  childrusage.ru_stime.tv_sec=0
#  childrusage.ru_stime.tv_usec=2999
# CPU time returned by wait4() is 0.003998
# while last known CPU time is 28.77
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 28.8159
CPU time (s): 28.77
CPU user time (s): 23.97
CPU system time (s): 4.8
CPU usage (%): 99.8409
Max. virtual memory (cumulated for all children) (KiB): 1843648

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.000999
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= 525
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 0.047992 second user time and 0.154976 second system time

The end

Launcher Data 

Begin job on node059 at 2010-06-17 20:18:54
IDJOB=2674223
IDBENCH=2241
IDSOLVER=1174
FILE ID=node059/2674223-1276798733
PBS_JOBID= 11176640
Free space on /tmp= 62552 MiB

SOLVER NAME= PBPASSolver 2010-06-13
BENCH NAME= PB06//final/normalized-PB06/OPT-SMALLINT/web/www.nlsde.buaa.edu.cn/~kexu/benchmarks/frb40-19-opb/normalized-frb40-19-3.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2674223-1276798733/watcher-2674223-1276798733 -o /tmp/evaluation-result-2674223-1276798733/solver-2674223-1276798733 -C 1800 -W 2000 -M 1800  run HOME/instance-2674223-1276798733.opb

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

MD5SUM BENCH= c9380923d34e254cfa512f89027f1d42
RANDOM SEED=1368183673

node059.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		: 3000.244
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	: 6000.48
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		: 3000.244
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:       1743152 kB
Buffers:         75492 kB
Cached:         110780 kB
SwapCached:        116 kB
Active:          74336 kB
Inactive:       162260 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1743152 kB
SwapTotal:     4192956 kB
SwapFree:      4183928 kB
Dirty:            2076 kB
Writeback:           0 kB
AnonPages:       50200 kB
Mapped:          15296 kB
Slab:            57668 kB
PageTables:       3920 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180824 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 node059 at 2010-06-17 20:19:24