Trace number 2674568

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) 63.83 64.1161

General information on the benchmark

Namenormalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/
miplib/normalized-mps-v2-20-10-air06.opb
MD5SUM56f4f4418400a86463858db6d507606d
Bench CategoryOPT-MEDINT (optimisation, medium integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark67237
Best CPU time to get the best result obtained on this benchmark1800.32
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 49649
Optimality of the best value was proved YES
Number of variables8627
Total number of constraints825
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)825
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint1
Maximum length of a constraint461
Number of terms in the objective function 8627
Biggest coefficient in the objective function 1859
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 4587852
Number of bits of the sum of numbers in the objective function 23
Biggest number in a constraint 1859
Number of bits of the biggest number in a constraint 11
Biggest sum of numbers in a constraint 4587852
Number of bits of the biggest sum of numbers23
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-2674568-1276792352/watcher-2674568-1276792352 -o /tmp/evaluation-result-2674568-1276792352/solver-2674568-1276792352 -C 1800 -W 2000 -M 1800 run HOME/instance-2674568-1276792352.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: 1.00 1.00 1.00 3/106 23875
/proc/meminfo: memFree=1735432/2059040 swapFree=4140368/4192956
[pid=23875] ppid=23873 vsize=8700 CPUtime=0
/proc/23875/stat : 23875 (run) S 23873 23875 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20526147 8908800 250 1992294400 4194304 4922060 140737167092912 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23875/statm: 2175 250 211 178 0 68 0

[startup+0.027646 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 23875
/proc/meminfo: memFree=1735432/2059040 swapFree=4140368/4192956
[pid=23875] ppid=23873 vsize=8700 CPUtime=0
/proc/23875/stat : 23875 (run) S 23873 23875 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20526147 8908800 250 1992294400 4194304 4922060 140737167092912 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23875/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.100654 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 23875
/proc/meminfo: memFree=1735432/2059040 swapFree=4140368/4192956
[pid=23875] ppid=23873 vsize=8700 CPUtime=0
/proc/23875/stat : 23875 (run) S 23873 23875 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20526147 8908800 250 1992294400 4194304 4922060 140737167092912 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23875/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.300672 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 23875
/proc/meminfo: memFree=1735432/2059040 swapFree=4140368/4192956
[pid=23875] ppid=23873 vsize=8700 CPUtime=0
/proc/23875/stat : 23875 (run) S 23873 23875 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20526147 8908800 250 1992294400 4194304 4922060 140737167092912 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23875/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.700725 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 23875
/proc/meminfo: memFree=1735432/2059040 swapFree=4140368/4192956
[pid=23875] ppid=23873 vsize=8700 CPUtime=0
/proc/23875/stat : 23875 (run) S 23873 23875 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20526147 8908800 250 1992294400 4194304 4922060 140737167092912 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23875/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50079 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 23879
/proc/meminfo: memFree=1545696/2059040 swapFree=4140368/4192956
[pid=23875] ppid=23873 vsize=8700 CPUtime=0
/proc/23875/stat : 23875 (run) S 23873 23875 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20526147 8908800 250 1992294400 4194304 4922060 140737167092912 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23875/statm: 2175 250 211 178 0 68 0
[pid=23877] ppid=23875 vsize=278244 CPUtime=1.48
/proc/23877/stat : 23877 (PBPASSolver) R 23875 23875 23436 0 -1 4202496 69459 0 0 0 58 90 0 0 25 0 1 0 20526148 284921856 68997 1992294400 134512640 134902295 4289677136 18446744073709551615 134520305 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/23877/statm: 69561 68997 256 96 0 68773 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 286944

[startup+3.10094 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 23881
/proc/meminfo: memFree=1361680/2059040 swapFree=4140368/4192956
[pid=23875] ppid=23873 vsize=8700 CPUtime=0
/proc/23875/stat : 23875 (run) S 23873 23875 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20526147 8908800 250 1992294400 4194304 4922060 140737167092912 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23875/statm: 2175 250 211 178 0 68 0
[pid=23877] ppid=23875 vsize=524420 CPUtime=3.08
/proc/23877/stat : 23877 (PBPASSolver) R 23875 23875 23436 0 -1 4202496 130987 0 0 0 138 170 0 0 25 0 1 0 20526148 537006080 130525 1992294400 134512640 134902295 4289677136 18446744073709551615 134520305 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/23877/statm: 131105 130533 256 96 0 130317 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 533120

[startup+6.30125 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 23881
/proc/meminfo: memFree=932516/2059040 swapFree=4140368/4192956
[pid=23875] ppid=23873 vsize=8700 CPUtime=0
/proc/23875/stat : 23875 (run) S 23873 23875 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20526147 8908800 250 1992294400 4194304 4922060 140737167092912 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23875/statm: 2175 250 211 178 0 68 0
[pid=23877] ppid=23875 vsize=817284 CPUtime=6.28
/proc/23877/stat : 23877 (PBPASSolver) R 23875 23875 23436 0 -1 4202496 204205 0 0 0 366 262 0 0 25 0 1 0 20526148 836898816 203743 1992294400 134512640 134902295 4289677136 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/23877/statm: 204321 203743 259 96 0 203533 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 825984

[startup+12.7019 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 23881
/proc/meminfo: memFree=858620/2059040 swapFree=4140368/4192956
[pid=23875] ppid=23873 vsize=8700 CPUtime=0
/proc/23875/stat : 23875 (run) S 23873 23875 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20526147 8908800 250 1992294400 4194304 4922060 140737167092912 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23875/statm: 2175 250 211 178 0 68 0
[pid=23877] ppid=23875 vsize=892084 CPUtime=12.68
/proc/23877/stat : 23877 (PBPASSolver) R 23875 23875 23436 0 -1 4202496 245462 0 0 0 989 279 0 0 25 0 1 0 20526148 913494016 221601 1992294400 134512640 134902295 4289677136 18446744073709551615 4159960039 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/23877/statm: 223021 221601 262 96 0 222233 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 900784

[startup+25.5011 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 23881
/proc/meminfo: memFree=622152/2059040 swapFree=4140368/4192956
[pid=23875] ppid=23873 vsize=8700 CPUtime=0
/proc/23875/stat : 23875 (run) S 23873 23875 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20526147 8908800 250 1992294400 4194304 4922060 140737167092912 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23875/statm: 2175 250 211 178 0 68 0
[pid=23877] ppid=23875 vsize=1128188 CPUtime=25.48
/proc/23877/stat : 23877 (PBPASSolver) R 23875 23875 23436 0 -1 4202496 304262 0 0 0 2248 300 0 0 25 0 1 0 20526148 1155264512 279033 1992294400 134512640 134902295 4289677136 18446744073709551615 134791330 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/23877/statm: 282047 279033 262 96 0 281259 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1136888

[startup+51.1006 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 23881
/proc/meminfo: memFree=176620/2059040 swapFree=4140368/4192956
[pid=23875] ppid=23873 vsize=8700 CPUtime=0
/proc/23875/stat : 23875 (run) S 23873 23875 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20526147 8908800 250 1992294400 4194304 4922060 140737167092912 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23875/statm: 2175 250 211 178 0 68 0
[pid=23877] ppid=23875 vsize=1611512 CPUtime=51.06
/proc/23877/stat : 23877 (PBPASSolver) R 23875 23875 23436 0 -1 4202496 420819 0 0 0 4760 346 0 0 25 0 1 0 20526148 1650188288 391328 1992294400 134512640 134902295 4289677136 18446744073709551615 4159989900 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/23877/statm: 402878 391328 262 96 0 402090 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 1620212



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+64.1019 s]
/proc/loadavg: 1.00 1.00 1.00 2/108 23881
/proc/meminfo: memFree=9492/2059040 swapFree=4140368/4192956
[pid=23875] ppid=23873 vsize=8700 CPUtime=0
/proc/23875/stat : 23875 (run) S 23873 23875 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20526147 8908800 250 1992294400 4194304 4922060 140737167092912 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23875/statm: 2175 250 211 178 0 68 0
[pid=23877] ppid=23875 vsize=1835192 CPUtime=63.83
/proc/23877/stat : 23877 (PBPASSolver) R 23875 23875 23436 0 -1 4202496 477953 0 0 0 6016 367 0 0 25 0 1 0 20526148 1879236608 447862 1992294400 134512640 134902295 4289677136 18446744073709551615 4371964 0 0 4096 17608 0 0 0 17 1 0 0 20
/proc/23877/statm: 458798 447862 262 96 0 458010 0
Current children cumulated CPU time (s) 63.83
Current children cumulated vsize (KiB) 1843892

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 23875 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 63.83
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 64.1161
CPU time (s): 63.83
CPU user time (s): 60.16
CPU system time (s): 3.67
CPU usage (%): 99.5537
Max. virtual memory (cumulated for all children) (KiB): 1843892

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= 523
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 0.095985 second user time and 0.332949 second system time

The end

Launcher Data 

Begin job on node056 at 2010-06-17 18:32:32
IDJOB=2674568
IDBENCH=1516
IDSOLVER=1174
FILE ID=node056/2674568-1276792352
PBS_JOBID= 11176596
Free space on /tmp= 98612 MiB

SOLVER NAME= PBPASSolver 2010-06-13
BENCH NAME= PB06//final/normalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/miplib/normalized-mps-v2-20-10-air06.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2674568-1276792352/watcher-2674568-1276792352 -o /tmp/evaluation-result-2674568-1276792352/solver-2674568-1276792352 -C 1800 -W 2000 -M 1800  run HOME/instance-2674568-1276792352.opb

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

MD5SUM BENCH= 56f4f4418400a86463858db6d507606d
RANDOM SEED=281701989

node056.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		: 3000.215
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		: 3000.215
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	: 5599.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1735952 kB
Buffers:         81840 kB
Cached:         149972 kB
SwapCached:       6220 kB
Active:          82000 kB
Inactive:       162860 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1735952 kB
SwapTotal:     4192956 kB
SwapFree:      4140368 kB
Dirty:            2708 kB
Writeback:           0 kB
AnonPages:       11236 kB
Mapped:          12880 kB
Slab:            56284 kB
PageTables:       4008 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181672 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= 98612 MiB
End job on node056 at 2010-06-17 18:33:38