Trace number 2668701

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
PB/CT 0.1? (MO) 55.7225 57.7895

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/fctp/normalized-mps-v2-20-10-n3709.opb
MD5SUM7d8773951a908fd3c2652ff6acba65e8
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
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 4559348765
Optimality of the best value was proved NO
Number of variables155000
Total number of constraints5150
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints5150
Minimum length of a constraint31
Maximum length of a constraint3000
Number of terms in the objective function 155000
Biggest coefficient in the objective function 4294967296
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 29610373267604
Number of bits of the sum of numbers in the objective function 45
Biggest number in a constraint 4294967296
Number of bits of the biggest number in a constraint 33
Biggest sum of numbers in a constraint 29610373267604
Number of bits of the biggest sum of numbers45
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data 

0.00/0.00	c PB/CT 0.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
2.69/2.79	c constraints 5150/0 clauses 0/0 units 59036
2.69/2.79	c vars 155000
30.79/30.86	c objective 123629 + 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-2668701-1276524127/watcher-2668701-1276524127 -o /tmp/evaluation-result-2668701-1276524127/solver-2668701-1276524127 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668701-1276524127.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 31461
/proc/meminfo: memFree=1731896/2059040 swapFree=4142408/4192956
[pid=31461] ppid=31459 vsize=2488 CPUtime=0
/proc/31461/stat : 31461 (pbct) R 31459 31461 31082 0 -1 4202496 307 0 0 0 0 0 0 0 22 0 1 0 26069070 2547712 229 1992294400 134512640 136485738 4294926192 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31461/statm: 622 229 151 482 0 138 0

[startup+0.044104 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 31461
/proc/meminfo: memFree=1731896/2059040 swapFree=4142408/4192956
[pid=31461] ppid=31459 vsize=3860 CPUtime=0.04
/proc/31461/stat : 31461 (pbct) R 31459 31461 31082 0 -1 4202496 648 0 0 0 4 0 0 0 22 0 1 0 26069070 3952640 537 1992294400 134512640 136485738 4294926192 18446744073709551615 135177438 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31461/statm: 965 537 151 482 0 481 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3860

[startup+0.102114 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 31461
/proc/meminfo: memFree=1731896/2059040 swapFree=4142408/4192956
[pid=31461] ppid=31459 vsize=5936 CPUtime=0.09
/proc/31461/stat : 31461 (pbct) R 31459 31461 31082 0 -1 4202496 1325 0 0 0 9 0 0 0 22 0 1 0 26069070 6078464 874 1992294400 134512640 136485738 4294926192 18446744073709551615 135411158 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31461/statm: 1484 874 151 482 0 1000 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5936

[startup+0.301151 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 31461
/proc/meminfo: memFree=1731896/2059040 swapFree=4142408/4192956
[pid=31461] ppid=31459 vsize=9960 CPUtime=0.29
/proc/31461/stat : 31461 (pbct) R 31459 31461 31082 0 -1 4202496 2923 0 0 0 29 0 0 0 22 0 1 0 26069070 10199040 2022 1992294400 134512640 136485738 4294926192 18446744073709551615 134524659 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31461/statm: 2490 2022 151 482 0 2006 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9960

[startup+0.700226 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 31461
/proc/meminfo: memFree=1731896/2059040 swapFree=4142408/4192956
[pid=31461] ppid=31459 vsize=16564 CPUtime=0.69
/proc/31461/stat : 31461 (pbct) R 31459 31461 31082 0 -1 4202496 4849 0 0 0 68 1 0 0 24 0 1 0 26069070 16961536 2921 1992294400 134512640 136485738 4294926192 18446744073709551615 135173322 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31461/statm: 4141 2921 155 482 0 3657 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16564

[startup+1.50037 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 31462
/proc/meminfo: memFree=1715024/2059040 swapFree=4142408/4192956
[pid=31461] ppid=31459 vsize=34100 CPUtime=1.49
/proc/31461/stat : 31461 (pbct) R 31459 31461 31082 0 -1 4202496 8874 0 0 0 147 2 0 0 25 0 1 0 26069070 34918400 6946 1992294400 134512640 136485738 4294926192 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31461/statm: 8525 6946 155 482 0 8041 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 34100

[startup+3.10068 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 31462
/proc/meminfo: memFree=1691836/2059040 swapFree=4142408/4192956
[pid=31461] ppid=31459 vsize=49444 CPUtime=3.09
/proc/31461/stat : 31461 (pbct) R 31459 31461 31082 0 -1 4202496 12667 0 0 0 305 4 0 0 25 0 1 0 26069070 50630656 10739 1992294400 134512640 136485738 4294926192 18446744073709551615 135180333 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31461/statm: 12361 10739 160 482 0 11877 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 49444

[startup+6.30027 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 31462
/proc/meminfo: memFree=1688860/2059040 swapFree=4142408/4192956
[pid=31461] ppid=31459 vsize=49444 CPUtime=6.29
/proc/31461/stat : 31461 (pbct) R 31459 31461 31082 0 -1 4202496 12667 0 0 0 625 4 0 0 25 0 1 0 26069070 50630656 10739 1992294400 134512640 136485738 4294926192 18446744073709551615 135180324 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31461/statm: 12361 10739 160 482 0 11877 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 49444

[startup+12.7015 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 31462
/proc/meminfo: memFree=1688860/2059040 swapFree=4142408/4192956
[pid=31461] ppid=31459 vsize=49444 CPUtime=12.69
/proc/31461/stat : 31461 (pbct) R 31459 31461 31082 0 -1 4202496 12667 0 0 0 1265 4 0 0 25 0 1 0 26069070 50630656 10739 1992294400 134512640 136485738 4294926192 18446744073709551615 135180333 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31461/statm: 12361 10739 160 482 0 11877 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 49444

[startup+25.5019 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 31462
/proc/meminfo: memFree=1688860/2059040 swapFree=4142408/4192956
[pid=31461] ppid=31459 vsize=49444 CPUtime=25.48
/proc/31461/stat : 31461 (pbct) R 31459 31461 31082 0 -1 4202496 12667 0 0 0 2544 4 0 0 25 0 1 0 26069070 50630656 10739 1992294400 134512640 136485738 4294926192 18446744073709551615 135180324 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/31461/statm: 12361 10739 160 482 0 11877 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 49444

[startup+51.1016 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 31462
/proc/meminfo: memFree=411040/2059040 swapFree=4142408/4192956
[pid=31461] ppid=31459 vsize=1380320 CPUtime=51.07
/proc/31461/stat : 31461 (pbct) R 31459 31461 31082 0 -1 4202496 365792 0 0 0 4949 158 0 0 25 0 1 0 26069070 1413447680 339139 1992294400 134512640 136485738 4294926192 18446744073709551615 135848202 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31461/statm: 345080 339140 197 482 0 344596 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 1380320



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+55.6016 s]
/proc/loadavg: 1.00 1.00 1.00 4/107 31462
/proc/meminfo: memFree=9744/2059040 swapFree=4140420/4192956
[pid=31461] ppid=31459 vsize=1849180 CPUtime=55.53
/proc/31461/stat : 31461 (pbct) R 31459 31461 31082 0 -1 4202496 490015 0 0 0 5335 218 0 0 18 0 1 0 26069070 1893560320 460289 1992294400 134512640 136485738 4294926192 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 0 0 0 2
/proc/31461/statm: 462295 460293 199 482 0 461811 0
Current children cumulated CPU time (s) 55.53
Current children cumulated vsize (KiB) 1849180

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -31461

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

[startup+55.8006 s]
/proc/loadavg: 1.00 1.00 1.00 4/107 31462
/proc/meminfo: memFree=9744/2059040 swapFree=4140420/4192956
[pid=31461] ppid=31459 vsize=1849312 CPUtime=55.53
/proc/31461/stat : 31461 (pbct) S 31459 31461 31082 0 -1 4194304 490049 0 0 0 5335 218 0 0 18 0 1 0 26069070 1893695488 460323 1992294400 134512640 136485738 4294926192 18446744073709551615 135319262 0 16384 4096 16387 18446604437831840064 0 0 17 0 0 0 2
/proc/31461/statm: 462328 460323 199 482 0 461844 0
Current children cumulated CPU time (s) 55.53
Current children cumulated vsize (KiB) 1849312

[startup+56.6006 s]
/proc/loadavg: 1.00 1.00 1.00 1/108 31463
/proc/meminfo: memFree=10704/2059040 swapFree=4140420/4192956
[pid=31461] ppid=31459 vsize=1849312 CPUtime=55.53
/proc/31461/stat : 31461 (pbct) S 31459 31461 31082 0 -1 4194304 490049 0 0 0 5335 218 0 0 18 0 1 0 26069070 1893695488 460323 1992294400 134512640 136485738 4294926192 18446744073709551615 135319262 0 16384 4096 16387 18446604437831840064 0 0 17 0 0 0 2
/proc/31461/statm: 462328 460323 199 482 0 461844 0
Current children cumulated CPU time (s) 55.53
Current children cumulated vsize (KiB) 1849312

[startup+57.4006 s]
/proc/loadavg: 0.92 0.98 0.99 1/108 31463
/proc/meminfo: memFree=10580/2059040 swapFree=4140420/4192956
[pid=31461] ppid=31459 vsize=1849312 CPUtime=55.53
/proc/31461/stat : 31461 (pbct) S 31459 31461 31082 0 -1 4194304 490049 0 0 0 5335 218 0 0 18 0 1 0 26069070 1893695488 460323 1992294400 134512640 136485738 4294926192 18446744073709551615 135319262 0 16384 4096 16387 18446604437831840064 0 0 17 0 0 0 2
/proc/31461/statm: 462328 460323 199 482 0 461844 0
Current children cumulated CPU time (s) 55.53
Current children cumulated vsize (KiB) 1849312

[startup+57.6006 s]
/proc/loadavg: 0.92 0.98 0.99 1/108 31463
/proc/meminfo: memFree=10580/2059040 swapFree=4140420/4192956
[pid=31461] ppid=31459 vsize=1849312 CPUtime=55.53
/proc/31461/stat : 31461 (pbct) S 31459 31461 31082 0 -1 4194304 490049 0 0 0 5335 218 0 0 18 0 1 0 26069070 1893695488 460323 1992294400 134512640 136485738 4294926192 18446744073709551615 135319262 0 16384 4096 16387 18446604437831840064 0 0 17 0 0 0 2
/proc/31461/statm: 462328 460323 199 482 0 461844 0
Current children cumulated CPU time (s) 55.53
Current children cumulated vsize (KiB) 1849312

[startup+57.7006 s]
/proc/loadavg: 0.92 0.98 0.99 1/108 31463
/proc/meminfo: memFree=10580/2059040 swapFree=4140420/4192956
[pid=31461] ppid=31459 vsize=0 CPUtime=55.62
/proc/31461/stat : 31461 (pbct) R 31459 31461 31082 0 -1 4195332 490049 0 0 0 5335 227 0 0 18 0 1 0 26069070 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 0 0 0 2
/proc/31461/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 55.62
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 57.7895
CPU time (s): 55.7225
CPU user time (s): 53.3569
CPU system time (s): 2.36564
CPU usage (%): 96.4233
Max. virtual memory (cumulated for all children) (KiB): 1849312

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 53.3569
system time used= 2.36564
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 490049
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= 6
involuntary context switches= 189

runsolver used 0.109983 second user time and 0.282956 second system time

The end

Launcher Data 

Begin job on node019 at 2010-06-14 16:02:08
IDJOB=2668701
IDBENCH=2305
IDSOLVER=1170
FILE ID=node019/2668701-1276524127
PBS_JOBID= 11173440
Free space on /tmp= 62372 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/fctp/normalized-mps-v2-20-10-n3709.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668701-1276524127/watcher-2668701-1276524127 -o /tmp/evaluation-result-2668701-1276524127/solver-2668701-1276524127 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668701-1276524127.opb

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

MD5SUM BENCH= 7d8773951a908fd3c2652ff6acba65e8
RANDOM SEED=1390781292

node019.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		: 3000.264
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	: 6000.52
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		: 3000.264
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	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1732424 kB
Buffers:        111636 kB
Cached:         121408 kB
SwapCached:       4636 kB
Active:         110016 kB
Inactive:       136720 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1732424 kB
SwapTotal:     4192956 kB
SwapFree:      4142408 kB
Dirty:           10608 kB
Writeback:           0 kB
AnonPages:       12000 kB
Mapped:          13636 kB
Slab:            58292 kB
PageTables:       4012 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182448 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= 62368 MiB
End job on node019 at 2010-06-14 16:03:05