Trace number 2673891

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) 14.88 14.9154

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/
miplib2003/normalized-mps-v2-20-10-nsrand-ipx.opb
MD5SUM6eba7367ef128fb0872fe815e4ef2398
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark1207959552
Best CPU time to get the best result obtained on this benchmark1802.1
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 1207959552
Optimality of the best value was proved NO
Number of variables6651
Total number of constraints721
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)331
Number of constraints which are nor clauses,nor cardinality constraints390
Minimum length of a constraint20
Maximum length of a constraint6651
Number of terms in the objective function 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 1073741824
Number of bits of the biggest number in a constraint 31
Biggest sum of numbers in a constraint 26715880447
Number of bits of the biggest sum of numbers35
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

14.88/14.90	c 6651 721 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-2673891-1276800650/watcher-2673891-1276800650 -o /tmp/evaluation-result-2673891-1276800650/solver-2673891-1276800650 -C 1800 -W 2000 -M 1800 run HOME/instance-2673891-1276800650.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 0.97 0.98 3/105 26195
/proc/meminfo: memFree=1842748/2059040 swapFree=4139492/4192956
[pid=26195] ppid=26191 vsize=8700 CPUtime=0
/proc/26195/stat : 26195 (run) S 26191 26195 26057 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21358140 8908800 250 1992294400 4194304 4922060 140735660898880 18446744073709551615 219540987013 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/26195/statm: 2175 250 211 178 0 68 0

[startup+0.0814 s]
/proc/loadavg: 0.92 0.97 0.98 3/105 26195
/proc/meminfo: memFree=1842748/2059040 swapFree=4139492/4192956
[pid=26195] ppid=26191 vsize=8700 CPUtime=0
/proc/26195/stat : 26195 (run) S 26191 26195 26057 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21358140 8908800 250 1992294400 4194304 4922060 140735660898880 18446744073709551615 219540987013 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/26195/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.101397 s]
/proc/loadavg: 0.92 0.97 0.98 3/105 26195
/proc/meminfo: memFree=1842748/2059040 swapFree=4139492/4192956
[pid=26195] ppid=26191 vsize=8700 CPUtime=0
/proc/26195/stat : 26195 (run) S 26191 26195 26057 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21358140 8908800 250 1992294400 4194304 4922060 140735660898880 18446744073709551615 219540987013 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/26195/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.30042 s]
/proc/loadavg: 0.92 0.97 0.98 3/105 26195
/proc/meminfo: memFree=1842748/2059040 swapFree=4139492/4192956
[pid=26195] ppid=26191 vsize=8700 CPUtime=0
/proc/26195/stat : 26195 (run) S 26191 26195 26057 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21358140 8908800 250 1992294400 4194304 4922060 140735660898880 18446744073709551615 219540987013 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/26195/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.700468 s]
/proc/loadavg: 0.92 0.97 0.98 3/105 26195
/proc/meminfo: memFree=1842748/2059040 swapFree=4139492/4192956
[pid=26195] ppid=26191 vsize=8700 CPUtime=0
/proc/26195/stat : 26195 (run) S 26191 26195 26057 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21358140 8908800 250 1992294400 4194304 4922060 140735660898880 18446744073709551615 219540987013 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/26195/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50057 s]
/proc/loadavg: 0.92 0.97 0.98 2/107 26198
/proc/meminfo: memFree=1662452/2059040 swapFree=4139492/4192956
[pid=26195] ppid=26191 vsize=8700 CPUtime=0
/proc/26195/stat : 26195 (run) S 26191 26195 26057 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21358140 8908800 250 1992294400 4194304 4922060 140735660898880 18446744073709551615 219540987013 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/26195/statm: 2175 250 211 178 0 68 0
[pid=26197] ppid=26195 vsize=270820 CPUtime=1.48
/proc/26197/stat : 26197 (PBPASSolver) R 26195 26195 26057 0 -1 4202496 67470 0 0 0 58 90 0 0 25 0 1 0 21358140 277319680 67096 1992294400 134512640 134902295 4293098048 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/26197/statm: 67705 67096 256 96 0 66917 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 279520

[startup+3.10076 s]
/proc/loadavg: 0.92 0.97 0.98 2/107 26198
/proc/meminfo: memFree=1471988/2059040 swapFree=4139492/4192956
[pid=26195] ppid=26191 vsize=8700 CPUtime=0
/proc/26195/stat : 26195 (run) S 26191 26195 26057 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21358140 8908800 250 1992294400 4194304 4922060 140735660898880 18446744073709551615 219540987013 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/26195/statm: 2175 250 211 178 0 68 0
[pid=26197] ppid=26195 vsize=532772 CPUtime=3.08
/proc/26197/stat : 26197 (PBPASSolver) R 26195 26195 26057 0 -1 4202496 132966 0 0 0 135 173 0 0 25 0 1 0 21358140 545558528 132504 1992294400 134512640 134902295 4293098048 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/26197/statm: 133193 132504 256 96 0 132405 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 541472

[startup+6.30116 s]
/proc/loadavg: 0.93 0.97 0.98 2/107 26198
/proc/meminfo: memFree=989504/2059040 swapFree=4139492/4192956
[pid=26195] ppid=26191 vsize=8700 CPUtime=0
/proc/26195/stat : 26195 (run) S 26191 26195 26057 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21358140 8908800 250 1992294400 4194304 4922060 140735660898880 18446744073709551615 219540987013 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/26195/statm: 2175 250 211 178 0 68 0
[pid=26197] ppid=26195 vsize=968164 CPUtime=6.28
/proc/26197/stat : 26197 (PBPASSolver) R 26195 26195 26057 0 -1 4202496 241809 0 0 0 313 315 0 0 25 0 1 0 21358140 991399936 241323 1992294400 134512640 134902295 4293098048 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/26197/statm: 242041 241323 256 96 0 241253 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 976864

[startup+12.7009 s]
/proc/loadavg: 0.93 0.97 0.98 2/107 26198
/proc/meminfo: memFree=258780/2059040 swapFree=4139492/4192956
[pid=26195] ppid=26191 vsize=8700 CPUtime=0
/proc/26195/stat : 26195 (run) S 26191 26195 26057 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21358140 8908800 250 1992294400 4194304 4922060 140735660898880 18446744073709551615 219540987013 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/26195/statm: 2175 250 211 178 0 68 0
[pid=26197] ppid=26195 vsize=1647684 CPUtime=12.68
/proc/26197/stat : 26197 (PBPASSolver) R 26195 26195 26057 0 -1 4202496 411760 0 0 0 741 527 0 0 25 0 1 0 21358140 1687228416 411122 1992294400 134512640 134902295 4293098048 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/26197/statm: 411921 411122 256 96 0 411133 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 1656384



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+14.9012 s]
/proc/loadavg: 0.94 0.97 0.98 2/107 26198
/proc/meminfo: memFree=7772/2059040 swapFree=4139492/4192956
[pid=26195] ppid=26191 vsize=8700 CPUtime=0
/proc/26195/stat : 26195 (run) S 26191 26195 26057 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21358140 8908800 250 1992294400 4194304 4922060 140735660898880 18446744073709551615 219540987013 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/26195/statm: 2175 250 211 178 0 68 0
[pid=26197] ppid=26195 vsize=1835940 CPUtime=14.88
/proc/26197/stat : 26197 (PBPASSolver) R 26195 26195 26057 0 -1 4202496 458795 0 0 0 902 586 0 0 25 0 1 0 21358140 1880002560 458125 1992294400 134512640 134902295 4293098048 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/26197/statm: 458985 458125 256 96 0 458197 0
Current children cumulated CPU time (s) 14.88
Current children cumulated vsize (KiB) 1844640

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

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

[startup+14.9012 s]
/proc/loadavg: 0.94 0.97 0.98 2/107 26198
/proc/meminfo: memFree=7772/2059040 swapFree=4139492/4192956
[pid=26195] ppid=26191 vsize=8700 CPUtime=0
/proc/26195/stat : 26195 (run) S 26191 26195 26057 0 -1 4202496 388 134 0 0 0 0 0 0 25 0 1 0 21358140 8908800 250 1992294400 4194304 4922060 140735660898880 18446744073709551615 219540987013 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/26195/statm: 2175 250 211 178 0 68 0
[pid=26197] ppid=26195 vsize=1835940 CPUtime=14.88
/proc/26197/stat : 26197 (PBPASSolver) R 26195 26195 26057 0 -1 4202496 458795 0 0 0 902 586 0 0 25 0 1 0 21358140 1880002560 458125 1992294400 134512640 134902295 4293098048 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/26197/statm: 458985 458125 256 96 0 458197 0
Current children cumulated CPU time (s) 14.88
Current children cumulated vsize (KiB) 1844640

Child ended because it received signal 15 (SIGTERM)

# WARNING:
# CPU time reported by wait4() is probably wrong !
# wait4(...,&childrusage) returns 26195 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=1999
# CPU time returned by wait4() is 0.002998
# while last known CPU time is 14.88
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 14.9154
CPU time (s): 14.88
CPU user time (s): 9.02
CPU system time (s): 5.86
CPU usage (%): 99.7624
Max. virtual memory (cumulated for all children) (KiB): 1844640

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.000999
system time used= 0.001999
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 0.028995 second user time and 0.082987 second system time

The end

Launcher Data 

Begin job on node080 at 2010-06-17 20:50:50
IDJOB=2673891
IDBENCH=2527
IDSOLVER=1174
FILE ID=node080/2673891-1276800650
PBS_JOBID= 11176645
Free space on /tmp= 62588 MiB

SOLVER NAME= PBPASSolver 2010-06-13
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-nsrand-ipx.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2673891-1276800650/watcher-2673891-1276800650 -o /tmp/evaluation-result-2673891-1276800650/solver-2673891-1276800650 -C 1800 -W 2000 -M 1800  run HOME/instance-2673891-1276800650.opb

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

MD5SUM BENCH= 6eba7367ef128fb0872fe815e4ef2398
RANDOM SEED=955225802

node080.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		: 3000.242
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		: 3000.242
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	: 5999.49
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1843284 kB
Buffers:         24200 kB
Cached:          99272 kB
SwapCached:       7160 kB
Active:          69708 kB
Inactive:        67548 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1843284 kB
SwapTotal:     4192956 kB
SwapFree:      4139492 kB
Dirty:            2648 kB
Writeback:           8 kB
AnonPages:       11660 kB
Mapped:          12964 kB
Slab:            56892 kB
PageTables:       3848 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183816 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= 62588 MiB
End job on node080 at 2010-06-17 20:51:07