Trace number 2674020

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) 15.81 15.8364

General information on the benchmark

Namenormalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/
miplib2003/normalized-mps-v2-20-10-t1717.opb
MD5SUM62188545cf171da3270e2dece04174fd
Bench CategoryOPT-MEDINT (optimisation, medium integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark376929
Best CPU time to get the best result obtained on this benchmark1800.63
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 200300
Optimality of the best value was proved NO
Number of variables73885
Total number of constraints551
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)551
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint585
Maximum length of a constraint612
Number of terms in the objective function 73885
Biggest coefficient in the objective function 4066
Number of bits for the biggest coefficient in the objective function 12
Sum of the numbers in the objective function 172074995
Number of bits of the sum of numbers in the objective function 28
Biggest number in a constraint 4066
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 172074995
Number of bits of the biggest sum of numbers28
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

15.81/15.83	c 73885 551 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-2674020-1276792418/watcher-2674020-1276792418 -o /tmp/evaluation-result-2674020-1276792418/solver-2674020-1276792418 -C 1800 -W 2000 -M 1800 run HOME/instance-2674020-1276792418.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 3/106 23908
/proc/meminfo: memFree=1799908/2059040 swapFree=4140368/4192956
[pid=23908] ppid=23906 vsize=8700 CPUtime=0
/proc/23908/stat : 23908 (run) S 23906 23908 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20532834 8908800 250 1992294400 4194304 4922060 140734417608832 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23908/statm: 2175 250 211 178 0 68 0

[startup+0.0946949 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 23908
/proc/meminfo: memFree=1799908/2059040 swapFree=4140368/4192956
[pid=23908] ppid=23906 vsize=8700 CPUtime=0
/proc/23908/stat : 23908 (run) S 23906 23908 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20532834 8908800 250 1992294400 4194304 4922060 140734417608832 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23908/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.100695 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 23908
/proc/meminfo: memFree=1799908/2059040 swapFree=4140368/4192956
[pid=23908] ppid=23906 vsize=8700 CPUtime=0
/proc/23908/stat : 23908 (run) S 23906 23908 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20532834 8908800 250 1992294400 4194304 4922060 140734417608832 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23908/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.300691 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 23908
/proc/meminfo: memFree=1799908/2059040 swapFree=4140368/4192956
[pid=23908] ppid=23906 vsize=8700 CPUtime=0
/proc/23908/stat : 23908 (run) S 23906 23908 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20532834 8908800 250 1992294400 4194304 4922060 140734417608832 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23908/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.700683 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 23908
/proc/meminfo: memFree=1799908/2059040 swapFree=4140368/4192956
[pid=23908] ppid=23906 vsize=8700 CPUtime=0
/proc/23908/stat : 23908 (run) S 23906 23908 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20532834 8908800 250 1992294400 4194304 4922060 140734417608832 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23908/statm: 2175 250 211 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50067 s]
/proc/loadavg: 0.92 0.98 0.99 2/108 23911
/proc/meminfo: memFree=1793816/2059040 swapFree=4140368/4192956
[pid=23908] ppid=23906 vsize=8700 CPUtime=0
/proc/23908/stat : 23908 (run) S 23906 23908 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20532834 8908800 250 1992294400 4194304 4922060 140734417608832 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23908/statm: 2175 250 211 178 0 68 0
[pid=23910] ppid=23908 vsize=12036 CPUtime=1.48
/proc/23910/stat : 23910 (PBPASSolver) R 23908 23908 23436 0 -1 4202496 2323 0 0 0 59 89 0 0 20 0 1 0 20532834 12324864 2261 1992294400 134512640 134902295 4289509824 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 0 0 0 0
/proc/23910/statm: 3009 2261 253 96 0 2221 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 20736

[startup+3.10064 s]
/proc/loadavg: 0.92 0.98 0.99 2/108 23911
/proc/meminfo: memFree=1788484/2059040 swapFree=4140368/4192956
[pid=23908] ppid=23906 vsize=8700 CPUtime=0
/proc/23908/stat : 23908 (run) S 23906 23908 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20532834 8908800 250 1992294400 4194304 4922060 140734417608832 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23908/statm: 2175 250 211 178 0 68 0
[pid=23910] ppid=23908 vsize=19620 CPUtime=3.08
/proc/23910/stat : 23910 (PBPASSolver) R 23908 23908 23436 0 -1 4202496 4293 0 0 0 119 189 0 0 25 0 1 0 20532834 20090880 4231 1992294400 134512640 134902295 4289509824 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 0 0 0 0
/proc/23910/statm: 4905 4231 253 96 0 4117 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 28320

[startup+6.30157 s]
/proc/loadavg: 0.93 0.98 0.99 2/108 23911
/proc/meminfo: memFree=1003440/2059040 swapFree=4140368/4192956
[pid=23908] ppid=23906 vsize=8700 CPUtime=0
/proc/23908/stat : 23908 (run) S 23906 23908 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20532834 8908800 250 1992294400 4194304 4922060 140734417608832 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23908/statm: 2175 250 211 178 0 68 0
[pid=23910] ppid=23908 vsize=908804 CPUtime=6.28
/proc/23910/stat : 23910 (PBPASSolver) R 23908 23908 23436 0 -1 4202496 230383 0 0 0 304 324 0 0 25 0 1 0 20532834 930615296 226593 1992294400 134512640 134902295 4289509824 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 0 0 0 0
/proc/23910/statm: 227201 226593 256 96 0 226413 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 917504

[startup+12.7004 s]
/proc/loadavg: 0.93 0.98 0.99 2/108 23913
/proc/meminfo: memFree=275560/2059040 swapFree=4140368/4192956
[pid=23908] ppid=23906 vsize=8700 CPUtime=0
/proc/23908/stat : 23908 (run) S 23906 23908 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20532834 8908800 250 1992294400 4194304 4922060 140734417608832 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23908/statm: 2175 250 211 178 0 68 0
[pid=23910] ppid=23908 vsize=1589188 CPUtime=12.68
/proc/23910/stat : 23910 (PBPASSolver) R 23908 23908 23436 0 -1 4202496 400369 0 0 0 730 538 0 0 25 0 1 0 20532834 1627328512 396571 1992294400 134512640 134902295 4289509824 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 0 0 0 0
/proc/23910/statm: 397297 396571 256 96 0 396509 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 1597888



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+15.8014 s]
/proc/loadavg: 0.94 0.98 0.99 2/108 23913
/proc/meminfo: memFree=9636/2059040 swapFree=4140368/4192956
[pid=23908] ppid=23906 vsize=8700 CPUtime=0
/proc/23908/stat : 23908 (run) S 23906 23908 23436 0 -1 4202496 389 134 0 0 0 0 0 0 20 0 1 0 20532834 8908800 250 1992294400 4194304 4922060 140734417608832 18446744073709551615 222256798853 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/23908/statm: 2175 250 211 178 0 68 0
[pid=23910] ppid=23908 vsize=1841508 CPUtime=15.81
/proc/23910/stat : 23910 (PBPASSolver) R 23908 23908 23436 0 -1 4202496 463402 0 0 0 963 618 0 0 25 0 1 0 20532834 1885704192 459604 1992294400 134512640 134902295 4289509824 18446744073709551615 4294960144 0 0 4096 17608 0 0 0 17 0 0 0 0
/proc/23910/statm: 460377 459604 256 96 0 459589 0
Current children cumulated CPU time (s) 15.81
Current children cumulated vsize (KiB) 1850208

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 23908 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 15.81
#
# Solver probably didn't/couldn't wait for its children
# Using CPU time of the last sample as value...

Real time (s): 15.8364
CPU time (s): 15.81
CPU user time (s): 9.63
CPU system time (s): 6.18
CPU usage (%): 99.8334
Max. virtual memory (cumulated for all children) (KiB): 1850208

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= 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= 4
involuntary context switches= 3

runsolver used 0.035994 second user time and 0.089986 second system time

The end

Launcher Data 

Begin job on node056 at 2010-06-17 18:33:39
IDJOB=2674020
IDBENCH=1522
IDSOLVER=1174
FILE ID=node056/2674020-1276792418
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/miplib2003/normalized-mps-v2-20-10-t1717.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2674020-1276792418/watcher-2674020-1276792418 -o /tmp/evaluation-result-2674020-1276792418/solver-2674020-1276792418 -C 1800 -W 2000 -M 1800  run HOME/instance-2674020-1276792418.opb

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

MD5SUM BENCH= 62188545cf171da3270e2dece04174fd
RANDOM SEED=1880271538

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:       1800428 kB
Buffers:         49424 kB
Cached:         118768 kB
SwapCached:       5948 kB
Active:          30688 kB
Inactive:       150184 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1800428 kB
SwapTotal:     4192956 kB
SwapFree:      4140368 kB
Dirty:            4728 kB
Writeback:           4 kB
AnonPages:       11308 kB
Mapped:          12800 kB
Slab:            55676 kB
PageTables:       4032 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179692 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= 98608 MiB
End job on node056 at 2010-06-17 18:33:57