Trace number 2673728

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) 19.06 19.5189

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-bc1.opb
MD5SUM7349a3a829e674d501313aed23f34764
Bench CategoryOPT-BIGINT (optimisation, big integers)
Best result obtained on this benchmark
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables27730
Total number of constraints3375
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)84
Number of constraints which are nor clauses,nor cardinality constraints3291
Minimum length of a constraint3
Maximum length of a constraint5701
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 1073741824000000000000000000
Number of bits of the biggest number in a constraint 90
Biggest sum of numbers in a constraint 3221975665359866949148487122
Number of bits of the biggest sum of numbers92
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

19.06/19.51	c 27730 3375 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-2673728-1276799199/watcher-2673728-1276799199 -o /tmp/evaluation-result-2673728-1276799199/solver-2673728-1276799199 -C 1800 -W 2000 -M 1800 run HOME/instance-2673728-1276799199.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: 1.05 0.99 0.99 3/106 22787
/proc/meminfo: memFree=1791428/2059040 swapFree=4140120/4192956
[pid=22787] ppid=22785 vsize=8700 CPUtime=0
/proc/22787/stat : 22787 (run) S 22785 22787 22670 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21213453 8908800 251 1992294400 4194304 4922060 140733961704576 18446744073709551615 223374580869 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22787/statm: 2175 251 211 178 0 68 0

[startup+0.0744691 s]
/proc/loadavg: 1.05 0.99 0.99 3/106 22787
/proc/meminfo: memFree=1791428/2059040 swapFree=4140120/4192956
[pid=22787] ppid=22785 vsize=8700 CPUtime=0
/proc/22787/stat : 22787 (run) S 22785 22787 22670 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21213453 8908800 251 1992294400 4194304 4922060 140733961704576 18446744073709551615 223374580869 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22787/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.101471 s]
/proc/loadavg: 1.05 0.99 0.99 3/106 22787
/proc/meminfo: memFree=1791428/2059040 swapFree=4140120/4192956
[pid=22787] ppid=22785 vsize=8700 CPUtime=0
/proc/22787/stat : 22787 (run) S 22785 22787 22670 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21213453 8908800 251 1992294400 4194304 4922060 140733961704576 18446744073709551615 223374580869 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22787/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.301492 s]
/proc/loadavg: 1.05 0.99 0.99 3/106 22787
/proc/meminfo: memFree=1791428/2059040 swapFree=4140120/4192956
[pid=22787] ppid=22785 vsize=8700 CPUtime=0
/proc/22787/stat : 22787 (run) S 22785 22787 22670 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21213453 8908800 251 1992294400 4194304 4922060 140733961704576 18446744073709551615 223374580869 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22787/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.701535 s]
/proc/loadavg: 1.05 0.99 0.99 3/106 22787
/proc/meminfo: memFree=1791428/2059040 swapFree=4140120/4192956
[pid=22787] ppid=22785 vsize=8700 CPUtime=0
/proc/22787/stat : 22787 (run) S 22785 22787 22670 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21213453 8908800 251 1992294400 4194304 4922060 140733961704576 18446744073709551615 223374580869 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22787/statm: 2175 251 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50162 s]
/proc/loadavg: 1.05 0.99 0.99 2/108 22790
/proc/meminfo: memFree=1624260/2059040 swapFree=4140120/4192956
[pid=22787] ppid=22785 vsize=8700 CPUtime=0
/proc/22787/stat : 22787 (run) S 22785 22787 22670 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21213453 8908800 251 1992294400 4194304 4922060 140733961704576 18446744073709551615 223374580869 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22787/statm: 2175 251 211 178 0 68 0
[pid=22789] ppid=22787 vsize=249860 CPUtime=1.49
/proc/22789/stat : 22789 (PBPASSolver) R 22787 22787 22670 0 -1 4202496 61930 0 0 0 57 92 0 0 23 0 1 0 21213453 255856640 61867 1992294400 134512640 134902295 4286741360 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/22789/statm: 62465 61867 256 96 0 61677 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 258560

[startup+3.1018 s]
/proc/loadavg: 1.05 0.99 0.99 2/108 22790
/proc/meminfo: memFree=1472980/2059040 swapFree=4140120/4192956
[pid=22787] ppid=22785 vsize=8700 CPUtime=0
/proc/22787/stat : 22787 (run) S 22785 22787 22670 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21213453 8908800 251 1992294400 4194304 4922060 140733961704576 18446744073709551615 223374580869 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22787/statm: 2175 251 211 178 0 68 0
[pid=22789] ppid=22787 vsize=439716 CPUtime=3.08
/proc/22789/stat : 22789 (PBPASSolver) R 22787 22787 22670 0 -1 4202496 109843 0 0 0 125 183 0 0 25 0 1 0 21213453 450269184 109332 1992294400 134512640 134902295 4286741360 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/22789/statm: 109929 109332 256 96 0 109141 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 448416

[startup+6.30115 s]
/proc/loadavg: 1.13 1.00 1.00 2/108 22790
/proc/meminfo: memFree=1130368/2059040 swapFree=4140120/4192956
[pid=22787] ppid=22785 vsize=8700 CPUtime=0
/proc/22787/stat : 22787 (run) S 22785 22787 22670 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21213453 8908800 251 1992294400 4194304 4922060 140733961704576 18446744073709551615 223374580869 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22787/statm: 2175 251 211 178 0 68 0
[pid=22789] ppid=22787 vsize=753348 CPUtime=6.29
/proc/22789/stat : 22789 (PBPASSolver) R 22787 22787 22670 0 -1 4202496 189418 0 0 0 275 354 0 0 25 0 1 0 21213453 771428352 187755 1992294400 134512640 134902295 4286741360 18446744073709551615 134588399 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/22789/statm: 188337 187755 256 96 0 187549 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 762048

[startup+12.7018 s]
/proc/loadavg: 1.12 1.00 1.00 2/108 22790
/proc/meminfo: memFree=512228/2059040 swapFree=4140120/4192956
[pid=22787] ppid=22785 vsize=8700 CPUtime=0
/proc/22787/stat : 22787 (run) S 22785 22787 22670 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21213453 8908800 251 1992294400 4194304 4922060 140733961704576 18446744073709551615 223374580869 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22787/statm: 2175 251 211 178 0 68 0
[pid=22789] ppid=22787 vsize=1361604 CPUtime=12.69
/proc/22789/stat : 22789 (PBPASSolver) R 22787 22787 22670 0 -1 4202496 343722 0 0 0 628 641 0 0 25 0 1 0 21213453 1394282496 339708 1992294400 134512640 134902295 4286741360 18446744073709551615 134586919 0 0 4096 17608 0 0 0 17 1 0 0 0
/proc/22789/statm: 340401 339715 256 96 0 339613 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1370304



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+19.5039 s]
/proc/loadavg: 1.10 1.00 1.00 4/108 22790
/proc/meminfo: memFree=8188/2059040 swapFree=4139956/4192956
[pid=22787] ppid=22785 vsize=8700 CPUtime=0
/proc/22787/stat : 22787 (run) S 22785 22787 22670 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21213453 8908800 251 1992294400 4194304 4922060 140733961704576 18446744073709551615 223374580869 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22787/statm: 2175 251 211 178 0 68 0
[pid=22789] ppid=22787 vsize=1838980 CPUtime=19.06
/proc/22789/stat : 22789 (PBPASSolver) R 22787 22787 22670 0 -1 4202496 464828 0 0 0 1012 894 0 0 23 0 1 0 21213453 1883115520 459101 1992294400 134512640 134902295 4286741360 18446744073709551615 134520305 0 0 4096 17608 0 0 0 17 0 0 0 41
/proc/22789/statm: 459745 459101 256 96 0 458957 0
Current children cumulated CPU time (s) 19.06
Current children cumulated vsize (KiB) 1847680

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

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

[startup+19.5039 s]
/proc/loadavg: 1.10 1.00 1.00 4/108 22790
/proc/meminfo: memFree=8188/2059040 swapFree=4139956/4192956
[pid=22787] ppid=22785 vsize=8700 CPUtime=0
/proc/22787/stat : 22787 (run) S 22785 22787 22670 0 -1 4202496 390 134 0 0 0 0 0 0 17 0 1 0 21213453 8908800 251 1992294400 4194304 4922060 140733961704576 18446744073709551615 223374580869 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/22787/statm: 2175 251 211 178 0 68 0
[pid=22789] ppid=22787 vsize=1838980 CPUtime=19.06
/proc/22789/stat : 22789 (PBPASSolver) R 22787 22787 22670 0 -1 4202496 464828 0 0 0 1012 894 0 0 23 0 1 0 21213453 1883115520 459101 1992294400 134512640 134902295 4286741360 18446744073709551615 134520305 0 0 4096 17608 0 0 0 17 0 0 0 41
/proc/22789/statm: 459745 459101 256 96 0 458957 0
Current children cumulated CPU time (s) 19.06
Current children cumulated vsize (KiB) 1847680

Child ended because it received signal 15 (SIGTERM)

# WARNING:
# CPU time reported by wait4() is probably wrong !
# wait4(...,&childrusage) returns 22787 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 19.06
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 19.5189
CPU time (s): 19.06
CPU user time (s): 10.12
CPU system time (s): 8.94
CPU usage (%): 97.649
Max. virtual memory (cumulated for all children) (KiB): 1847680

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 0.037994 second user time and 0.107983 second system time

The end

Launcher Data 

Begin job on node037 at 2010-06-17 20:26:46
IDJOB=2673728
IDBENCH=2316
IDSOLVER=1174
FILE ID=node037/2673728-1276799199
PBS_JOBID= 11176661
Free space on /tmp= 62508 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-bc1.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2673728-1276799199/watcher-2673728-1276799199 -o /tmp/evaluation-result-2673728-1276799199/solver-2673728-1276799199 -C 1800 -W 2000 -M 1800  run HOME/instance-2673728-1276799199.opb

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

MD5SUM BENCH= 7349a3a829e674d501313aed23f34764
RANDOM SEED=395893934

node037.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		: 3000.248
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	: 6000.49
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		: 3000.248
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	: 5599.55
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1792072 kB
Buffers:         10064 kB
Cached:         166020 kB
SwapCached:       6036 kB
Active:          85908 kB
Inactive:       102764 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1792072 kB
SwapTotal:     4192956 kB
SwapFree:      4140120 kB
Dirty:           75736 kB
Writeback:           0 kB
AnonPages:       10728 kB
Mapped:          12988 kB
Slab:            56552 kB
PageTables:       3976 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180428 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= 62504 MiB
End job on node037 at 2010-06-17 20:27:08