Trace number 2674132

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) 27.31 27.5225

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos13.opb
MD5SUM1218478b67ec647ce24db44195ab22fa
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark-88321224
Best CPU time to get the best result obtained on this benchmark1800.27
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -89698560
Optimality of the best value was proved NO
Number of variables1935
Total number of constraints19275
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)1
Number of constraints which are nor clauses,nor cardinality constraints19274
Minimum length of a constraint10
Maximum length of a constraint1815
Number of terms in the objective function 120
Biggest coefficient in the objective function 103558656
Number of bits for the biggest coefficient in the objective function 27
Sum of the numbers in the objective function 2282563635
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 69966336000
Number of bits of the biggest number in a constraint 37
Biggest sum of numbers in a constraint 636991772142
Number of bits of the biggest sum of numbers40
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

27.31/27.51	c 1935 19275 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-2674132-1276799220/watcher-2674132-1276799220 -o /tmp/evaluation-result-2674132-1276799220/solver-2674132-1276799220 -C 1800 -W 2000 -M 1800 run HOME/instance-2674132-1276799220.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: 0.86 0.97 0.99 3/106 25016
/proc/meminfo: memFree=1821512/2059040 swapFree=4154176/4192956
[pid=25016] ppid=25014 vsize=8700 CPUtime=0
/proc/25016/stat : 25016 (run) S 25014 25016 24991 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21215350 8908800 251 1992294400 4194304 4922060 140734236713536 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/25016/statm: 2175 251 211 178 0 68 0

[startup+0.106948 s]
/proc/loadavg: 0.86 0.97 0.99 3/106 25016
/proc/meminfo: memFree=1821512/2059040 swapFree=4154176/4192956
[pid=25016] ppid=25014 vsize=8700 CPUtime=0
/proc/25016/stat : 25016 (run) S 25014 25016 24991 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21215350 8908800 251 1992294400 4194304 4922060 140734236713536 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/25016/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.201953 s]
/proc/loadavg: 0.86 0.97 0.99 3/106 25016
/proc/meminfo: memFree=1821512/2059040 swapFree=4154176/4192956
[pid=25016] ppid=25014 vsize=8700 CPUtime=0
/proc/25016/stat : 25016 (run) S 25014 25016 24991 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21215350 8908800 251 1992294400 4194304 4922060 140734236713536 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/25016/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.301963 s]
/proc/loadavg: 0.86 0.97 0.99 3/106 25016
/proc/meminfo: memFree=1821512/2059040 swapFree=4154176/4192956
[pid=25016] ppid=25014 vsize=8700 CPUtime=0
/proc/25016/stat : 25016 (run) S 25014 25016 24991 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21215350 8908800 251 1992294400 4194304 4922060 140734236713536 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/25016/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.702002 s]
/proc/loadavg: 0.86 0.97 0.99 3/106 25016
/proc/meminfo: memFree=1821512/2059040 swapFree=4154176/4192956
[pid=25016] ppid=25014 vsize=8700 CPUtime=0
/proc/25016/stat : 25016 (run) S 25014 25016 24991 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21215350 8908800 251 1992294400 4194304 4922060 140734236713536 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/25016/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50108 s]
/proc/loadavg: 0.86 0.97 0.99 2/108 25019
/proc/meminfo: memFree=1655956/2059040 swapFree=4154176/4192956
[pid=25016] ppid=25014 vsize=8700 CPUtime=0
/proc/25016/stat : 25016 (run) S 25014 25016 24991 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21215350 8908800 251 1992294400 4194304 4922060 140734236713536 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/25016/statm: 2175 251 211 178 0 68 0
[pid=25018] ppid=25016 vsize=221828 CPUtime=1.48
/proc/25018/stat : 25018 (PBPASSolver) R 25016 25016 24991 0 -1 4202496 54957 0 0 0 60 88 0 0 23 0 1 0 21215351 227151872 54895 1992294400 134512640 134902295 4289027504 18446744073709551615 134520305 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/25018/statm: 55457 54895 256 96 0 54669 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 230528

[startup+3.10124 s]
/proc/loadavg: 0.86 0.97 0.99 2/108 25019
/proc/meminfo: memFree=1513852/2059040 swapFree=4154176/4192956
[pid=25016] ppid=25014 vsize=8700 CPUtime=0
/proc/25016/stat : 25016 (run) S 25014 25016 24991 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21215350 8908800 251 1992294400 4194304 4922060 140734236713536 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/25016/statm: 2175 251 211 178 0 68 0
[pid=25018] ppid=25016 vsize=410788 CPUtime=3.08
/proc/25018/stat : 25018 (PBPASSolver) R 25016 25016 24991 0 -1 4202496 102139 0 0 0 143 165 0 0 25 0 1 0 21215351 420646912 102077 1992294400 134512640 134902295 4289027504 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/25018/statm: 102697 102077 256 96 0 101909 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 419488

[startup+6.30155 s]
/proc/loadavg: 0.87 0.97 0.99 2/108 25019
/proc/meminfo: memFree=1182772/2059040 swapFree=4154176/4192956
[pid=25016] ppid=25014 vsize=8700 CPUtime=0
/proc/25016/stat : 25016 (run) S 25014 25016 24991 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21215350 8908800 251 1992294400 4194304 4922060 140734236713536 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/25016/statm: 2175 251 211 178 0 68 0
[pid=25018] ppid=25016 vsize=707556 CPUtime=6.29
/proc/25018/stat : 25018 (PBPASSolver) R 25016 25016 24991 0 -1 4202496 176394 0 0 0 343 286 0 0 25 0 1 0 21215351 724537344 176332 1992294400 134512640 134902295 4289027504 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/25018/statm: 176889 176332 256 96 0 176101 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 716256

[startup+12.7012 s]
/proc/loadavg: 0.88 0.97 0.99 2/108 25019
/proc/meminfo: memFree=708348/2059040 swapFree=4154176/4192956
[pid=25016] ppid=25014 vsize=8700 CPUtime=0
/proc/25016/stat : 25016 (run) S 25014 25016 24991 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21215350 8908800 251 1992294400 4194304 4922060 140734236713536 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/25016/statm: 2175 251 211 178 0 68 0
[pid=25018] ppid=25016 vsize=1149732 CPUtime=12.68
/proc/25018/stat : 25018 (PBPASSolver) R 25016 25016 24991 0 -1 4202496 286935 0 0 0 804 464 0 0 25 0 1 0 21215351 1177325568 286873 1992294400 134512640 134902295 4289027504 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/25018/statm: 287433 286873 256 96 0 286645 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 1158432

[startup+25.5014 s]
/proc/loadavg: 0.91 0.97 0.99 2/108 25019
/proc/meminfo: memFree=62432/2059040 swapFree=4154176/4192956
[pid=25016] ppid=25014 vsize=8700 CPUtime=0
/proc/25016/stat : 25016 (run) S 25014 25016 24991 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21215350 8908800 251 1992294400 4194304 4922060 140734236713536 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/25016/statm: 2175 251 211 178 0 68 0
[pid=25018] ppid=25016 vsize=1767492 CPUtime=25.48
/proc/25018/stat : 25018 (PBPASSolver) R 25016 25016 24991 0 -1 4202496 441322 0 0 0 1846 702 0 0 25 0 1 0 21215351 1809911808 441260 1992294400 134512640 134902295 4289027504 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/25018/statm: 441873 441260 256 96 0 441085 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1776192



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+27.5005 s]
/proc/loadavg: 0.91 0.97 0.99 2/108 25019
/proc/meminfo: memFree=10104/2059040 swapFree=4140552/4192956
[pid=25016] ppid=25014 vsize=8700 CPUtime=0
/proc/25016/stat : 25016 (run) S 25014 25016 24991 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21215350 8908800 251 1992294400 4194304 4922060 140734236713536 18446744073709551615 222313421957 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/25016/statm: 2175 251 211 178 0 68 0
[pid=25018] ppid=25016 vsize=1835620 CPUtime=27.31
/proc/25018/stat : 25018 (PBPASSolver) R 25016 25016 24991 0 -1 4202496 458408 0 0 0 1998 733 0 0 18 0 1 0 21215351 1879674880 458346 1992294400 134512640 134902295 4289027504 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 0 0 0 16
/proc/25018/statm: 458905 458346 256 96 0 458117 0
Current children cumulated CPU time (s) 27.31
Current children cumulated vsize (KiB) 1844320

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 25016 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 27.31
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 27.5225
CPU time (s): 27.31
CPU user time (s): 19.98
CPU system time (s): 7.33
CPU usage (%): 99.2279
Max. virtual memory (cumulated for all children) (KiB): 1844320

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= 4
involuntary context switches= 3

runsolver used 0.050992 second user time and 0.154976 second system time

The end

Launcher Data 

Begin job on node036 at 2010-06-17 20:27:04
IDJOB=2674132
IDBENCH=2318
IDSOLVER=1174
FILE ID=node036/2674132-1276799220
PBS_JOBID= 11176664
Free space on /tmp= 62492 MiB

SOLVER NAME= PBPASSolver 2010-06-13
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos13.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2674132-1276799220/watcher-2674132-1276799220 -o /tmp/evaluation-result-2674132-1276799220/solver-2674132-1276799220 -C 1800 -W 2000 -M 1800  run HOME/instance-2674132-1276799220.opb

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

MD5SUM BENCH= 1218478b67ec647ce24db44195ab22fa
RANDOM SEED=1740115978

node036.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		: 3000.251
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	: 6000.50
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		: 3000.251
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:       1822032 kB
Buffers:         10660 kB
Cached:         125624 kB
SwapCached:       1416 kB
Active:          63456 kB
Inactive:        94896 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1822032 kB
SwapTotal:     4192956 kB
SwapFree:      4154176 kB
Dirty:           35892 kB
Writeback:           0 kB
AnonPages:       20612 kB
Mapped:          13736 kB
Slab:            56712 kB
PageTables:       4032 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180016 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= 62492 MiB
End job on node036 at 2010-06-17 20:27:34