Trace number 2668289

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) 31.4752 33.4833

General information on the benchmark

Namenormalized-PB06/OPT-MEDINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos9.opb
MD5SUM9b565ffd2f62b11d1859d685ea38235b
Bench CategoryOPT-MEDINT (optimisation, medium 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 variables874498
Total number of constraints110909
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)87
Number of constraints which are nor clauses,nor cardinality constraints110822
Minimum length of a constraint11
Maximum length of a constraint14080
Number of terms in the objective function 198658
Biggest coefficient in the objective function 1024
Number of bits for the biggest coefficient in the objective function 11
Sum of the numbers in the objective function 38727219
Number of bits of the sum of numbers in the objective function 26
Biggest number in a constraint 30720
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 38727219
Number of bits of the biggest sum of numbers26
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
12.29/12.34	c constraints 110909/0 clauses 0/0 units 0
12.29/12.34	c vars 874498
12.29/12.34	c objective 198658 + 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-2668289-1276435574/watcher-2668289-1276435574 -o /tmp/evaluation-result-2668289-1276435574/solver-2668289-1276435574 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668289-1276435574.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 0.99 0.99 3/106 27008
/proc/meminfo: memFree=1818928/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=2488 CPUtime=0
/proc/27008/stat : 27008 (pbct) R 27006 27008 25934 0 -1 4202496 309 0 0 0 0 0 0 0 20 0 1 0 19161652 2547712 231 1992294400 134512640 136485738 4288896960 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27008/statm: 622 231 149 482 0 138 0

[startup+0.0423301 s]
/proc/loadavg: 0.86 0.99 0.99 3/106 27008
/proc/meminfo: memFree=1818928/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=4080 CPUtime=0.03
/proc/27008/stat : 27008 (pbct) R 27006 27008 25934 0 -1 4202496 745 0 0 0 3 0 0 0 20 0 1 0 19161652 4177920 520 1992294400 134512640 136485738 4288896960 18446744073709551615 135415792 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27008/statm: 1020 521 149 482 0 536 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 4080

[startup+0.101335 s]
/proc/loadavg: 0.86 0.99 0.99 3/106 27008
/proc/meminfo: memFree=1818928/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=5936 CPUtime=0.09
/proc/27008/stat : 27008 (pbct) R 27006 27008 25934 0 -1 4202496 1410 0 0 0 9 0 0 0 20 0 1 0 19161652 6078464 959 1992294400 134512640 136485738 4288896960 18446744073709551615 135411160 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27008/statm: 1484 959 149 482 0 1000 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5936

[startup+0.301356 s]
/proc/loadavg: 0.86 0.99 0.99 3/106 27008
/proc/meminfo: memFree=1818928/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=16564 CPUtime=0.29
/proc/27008/stat : 27008 (pbct) R 27006 27008 25934 0 -1 4202496 4655 0 0 0 28 1 0 0 20 0 1 0 19161652 16961536 2727 1992294400 134512640 136485738 4288896960 18446744073709551615 135844759 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27008/statm: 4141 2727 149 482 0 3657 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 16564

[startup+0.701396 s]
/proc/loadavg: 0.86 0.99 0.99 3/106 27008
/proc/meminfo: memFree=1818928/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=16564 CPUtime=0.7
/proc/27008/stat : 27008 (pbct) R 27006 27008 25934 0 -1 4202496 5202 0 0 0 68 2 0 0 20 0 1 0 19161652 16961536 3274 1992294400 134512640 136485738 4288896960 18446744073709551615 135177522 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27008/statm: 4141 3274 151 482 0 3657 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 16564

[startup+1.50148 s]
/proc/loadavg: 0.95 1.00 0.99 2/107 27009
/proc/meminfo: memFree=1802180/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=33472 CPUtime=1.49
/proc/27008/stat : 27008 (pbct) R 27006 27008 25934 0 -1 4202496 9411 0 0 0 145 4 0 0 22 0 1 0 19161652 34275328 7483 1992294400 134512640 136485738 4288896960 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27008/statm: 8368 7483 156 482 0 7884 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 33472

[startup+3.10164 s]
/proc/loadavg: 0.95 1.00 0.99 2/107 27009
/proc/meminfo: memFree=1776636/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=71692 CPUtime=3.09
/proc/27008/stat : 27008 (pbct) R 27006 27008 25934 0 -1 4202496 18979 0 0 0 300 9 0 0 25 0 1 0 19161652 73412608 17051 1992294400 134512640 136485738 4288896960 18446744073709551615 135411160 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27008/statm: 17923 17051 156 482 0 17439 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 71692

[startup+6.30097 s]
/proc/loadavg: 0.95 1.00 0.99 2/107 27009
/proc/meminfo: memFree=1700500/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=146604 CPUtime=6.29
/proc/27008/stat : 27008 (pbct) R 27006 27008 25934 0 -1 4202496 37017 0 0 0 612 17 0 0 25 0 1 0 19161652 150122496 35089 1992294400 134512640 136485738 4288896960 18446744073709551615 134532066 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/27008/statm: 36651 35089 156 482 0 36167 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 146604

[startup+12.7006 s]
/proc/loadavg: 0.96 1.00 0.99 2/107 27009
/proc/meminfo: memFree=1531488/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=331960 CPUtime=12.69
/proc/27008/stat : 27008 (pbct) R 27006 27008 25934 0 -1 4202496 83410 0 0 0 1232 37 0 0 25 0 1 0 19161652 339927040 81482 1992294400 134512640 136485738 4288896960 18446744073709551615 134561448 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/27008/statm: 82990 81483 197 482 0 82506 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 331960

[startup+25.5009 s]
/proc/loadavg: 0.97 1.00 0.99 2/107 27009
/proc/meminfo: memFree=490260/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=1384624 CPUtime=25.49
/proc/27008/stat : 27008 (pbct) R 27006 27008 25934 0 -1 4202496 357633 0 0 0 2382 167 0 0 25 0 1 0 19161652 1417854976 337903 1992294400 134512640 136485738 4288896960 18446744073709551615 135868589 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/27008/statm: 346156 337911 197 482 0 345672 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1384624



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+31.3005 s]
/proc/loadavg: 0.97 1.00 0.99 2/107 27011
/proc/meminfo: memFree=9992/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=1847868 CPUtime=31.29
/proc/27008/stat : 27008 (pbct) R 27006 27008 25934 0 -1 4202496 480978 0 0 0 2899 230 0 0 25 0 1 0 19161652 1892216832 454599 1992294400 134512640 136485738 4288896960 18446744073709551615 134724852 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/27008/statm: 461967 454600 197 482 0 461483 0
Current children cumulated CPU time (s) 31.29
Current children cumulated vsize (KiB) 1847868

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -27008

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

[startup+31.8006 s]
/proc/loadavg: 0.97 1.00 0.99 1/108 27012
/proc/meminfo: memFree=9364/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=1847868 CPUtime=31.3
/proc/27008/stat : 27008 (pbct) S 27006 27008 25934 0 -1 4194304 480987 0 0 0 2900 230 0 0 25 0 1 0 19161652 1892216832 454608 1992294400 134512640 136485738 4288896960 18446744073709551615 135319262 0 16384 4096 16387 18446604437809248320 0 0 17 1 0 0 0
/proc/27008/statm: 461967 454608 198 482 0 461483 0
Current children cumulated CPU time (s) 31.3
Current children cumulated vsize (KiB) 1847868

[startup+32.6007 s]
/proc/loadavg: 0.97 1.00 0.99 1/108 27012
/proc/meminfo: memFree=9364/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=1847868 CPUtime=31.3
/proc/27008/stat : 27008 (pbct) S 27006 27008 25934 0 -1 4194304 480987 0 0 0 2900 230 0 0 25 0 1 0 19161652 1892216832 454608 1992294400 134512640 136485738 4288896960 18446744073709551615 135319262 0 16384 4096 16387 18446604437809248320 0 0 17 1 0 0 0
/proc/27008/statm: 461967 454608 198 482 0 461483 0
Current children cumulated CPU time (s) 31.3
Current children cumulated vsize (KiB) 1847868

[startup+33.0087 s]
/proc/loadavg: 0.97 1.00 0.99 1/108 27012
/proc/meminfo: memFree=9364/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=1847868 CPUtime=31.3
/proc/27008/stat : 27008 (pbct) S 27006 27008 25934 0 -1 4194304 480987 0 0 0 2900 230 0 0 25 0 1 0 19161652 1892216832 454608 1992294400 134512640 136485738 4288896960 18446744073709551615 135319262 0 16384 4096 16387 18446604437809248320 0 0 17 1 0 0 0
/proc/27008/statm: 461967 454608 198 482 0 461483 0
Current children cumulated CPU time (s) 31.3
Current children cumulated vsize (KiB) 1847868

[startup+33.4007 s]
/proc/loadavg: 0.97 1.00 0.99 1/108 27012
/proc/meminfo: memFree=9364/2059040 swapFree=4135652/4192956
[pid=27008] ppid=27006 vsize=0 CPUtime=31.39
/proc/27008/stat : 27008 (pbct) R 27006 27008 25934 0 -1 4195332 480987 0 0 0 2900 239 0 0 18 0 1 0 19161652 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/27008/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 31.39
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 33.4833
CPU time (s): 31.4752
CPU user time (s): 29.0006
CPU system time (s): 2.47462
CPU usage (%): 94.0027
Max. virtual memory (cumulated for all children) (KiB): 1847868

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.0006
system time used= 2.47462
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 480987
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= 2
involuntary context switches= 23

runsolver used 0.066989 second user time and 0.161975 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-13 15:26:17
IDJOB=2668289
IDBENCH=1505
IDSOLVER=1170
FILE ID=node002/2668289-1276435574
PBS_JOBID= 11173318
Free space on /tmp= 62356 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-MEDINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos9.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668289-1276435574/watcher-2668289-1276435574 -o /tmp/evaluation-result-2668289-1276435574/solver-2668289-1276435574 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668289-1276435574.opb

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

MD5SUM BENCH= 9b565ffd2f62b11d1859d685ea38235b
RANDOM SEED=1317576378

node002.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		: 3000.242
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	: 6000.48
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		: 3000.242
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	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1819448 kB
Buffers:         20300 kB
Cached:         140200 kB
SwapCached:       9840 kB
Active:          63344 kB
Inactive:       109160 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1819448 kB
SwapTotal:     4192956 kB
SwapFree:      4135652 kB
Dirty:           46528 kB
Writeback:           0 kB
AnonPages:       10836 kB
Mapped:           9188 kB
Slab:            45332 kB
PageTables:       4016 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179836 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= 62352 MiB
End job on node002 at 2010-06-13 15:26:50