Trace number 2668672

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) 55.7795 57.7994

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/fctp/normalized-mps-v2-20-10-n3707.opb
MD5SUMbd6dfc1cb1b60fa01a3db613e331e5b8
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 4574600208
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 29764190431236
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 29764190431236
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
2.79/2.82	c constraints 5150/0 clauses 0/0 units 58823
2.79/2.82	c vars 155000
30.79/30.80	c objective 123787 + 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-2668672-1276522986/watcher-2668672-1276522986 -o /tmp/evaluation-result-2668672-1276522986/solver-2668672-1276522986 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668672-1276522986.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: 0.98 0.99 0.99 3/106 29591
/proc/meminfo: memFree=1864932/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=2488 CPUtime=0
/proc/29591/stat : 29591 (pbct) R 29589 29591 29487 0 -1 4202496 304 0 0 0 0 0 0 0 20 0 1 0 27900063 2547712 227 1992294400 134512640 136485738 4292854592 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29591/statm: 622 227 151 482 0 138 0

[startup+0.0611759 s]
/proc/loadavg: 0.98 0.99 0.99 3/106 29591
/proc/meminfo: memFree=1864932/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=4080 CPUtime=0.05
/proc/29591/stat : 29591 (pbct) R 29589 29591 29487 0 -1 4202496 778 0 0 0 5 0 0 0 22 0 1 0 27900063 4177920 554 1992294400 134512640 136485738 4292854592 18446744073709551615 134524791 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29591/statm: 1020 554 151 482 0 536 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4080

[startup+0.101182 s]
/proc/loadavg: 0.98 0.99 0.99 3/106 29591
/proc/meminfo: memFree=1864932/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=5936 CPUtime=0.09
/proc/29591/stat : 29591 (pbct) R 29589 29591 29487 0 -1 4202496 1319 0 0 0 9 0 0 0 22 0 1 0 27900063 6078464 869 1992294400 134512640 136485738 4292854592 18446744073709551615 135843987 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29591/statm: 1484 869 151 482 0 1000 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5936

[startup+0.301217 s]
/proc/loadavg: 0.98 0.99 0.99 3/106 29591
/proc/meminfo: memFree=1864932/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=9960 CPUtime=0.29
/proc/29591/stat : 29591 (pbct) R 29589 29591 29487 0 -1 4202496 2905 0 0 0 28 1 0 0 22 0 1 0 27900063 10199040 2005 1992294400 134512640 136485738 4292854592 18446744073709551615 135411144 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29591/statm: 2490 2005 151 482 0 2006 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9960

[startup+0.701285 s]
/proc/loadavg: 0.98 0.99 0.99 3/106 29591
/proc/meminfo: memFree=1864932/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=16564 CPUtime=0.69
/proc/29591/stat : 29591 (pbct) R 29589 29591 29487 0 -1 4202496 4848 0 0 0 68 1 0 0 24 0 1 0 27900063 16961536 2921 1992294400 134512640 136485738 4292854592 18446744073709551615 135415726 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29591/statm: 4141 2921 155 482 0 3657 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16564

[startup+1.50142 s]
/proc/loadavg: 0.98 0.99 0.99 2/107 29592
/proc/meminfo: memFree=1848308/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=33680 CPUtime=1.49
/proc/29591/stat : 29591 (pbct) R 29589 29591 29487 0 -1 4202496 8790 0 0 0 145 4 0 0 25 0 1 0 27900063 34488320 6863 1992294400 134512640 136485738 4292854592 18446744073709551615 135411200 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29591/statm: 8420 6863 155 482 0 7936 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 33680

[startup+3.1017 s]
/proc/loadavg: 0.98 0.99 0.99 2/107 29592
/proc/meminfo: memFree=1824748/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=49500 CPUtime=3.09
/proc/29591/stat : 29591 (pbct) R 29589 29591 29487 0 -1 4202496 12673 0 0 0 303 6 0 0 25 0 1 0 27900063 50688000 10746 1992294400 134512640 136485738 4292854592 18446744073709551615 134539116 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29591/statm: 12375 10746 160 482 0 11891 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 49500

[startup+6.30125 s]
/proc/loadavg: 1.07 1.01 1.00 2/107 29592
/proc/meminfo: memFree=1821772/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=49500 CPUtime=6.29
/proc/29591/stat : 29591 (pbct) R 29589 29591 29487 0 -1 4202496 12673 0 0 0 623 6 0 0 25 0 1 0 27900063 50688000 10746 1992294400 134512640 136485738 4292854592 18446744073709551615 135180333 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29591/statm: 12375 10746 160 482 0 11891 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 49500

[startup+12.7013 s]
/proc/loadavg: 1.06 1.01 1.00 2/107 29592
/proc/meminfo: memFree=1821772/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=49500 CPUtime=12.69
/proc/29591/stat : 29591 (pbct) R 29589 29591 29487 0 -1 4202496 12673 0 0 0 1263 6 0 0 25 0 1 0 27900063 50688000 10746 1992294400 134512640 136485738 4292854592 18446744073709551615 135180333 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29591/statm: 12375 10746 160 482 0 11891 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 49500

[startup+25.5005 s]
/proc/loadavg: 1.05 1.01 1.00 2/107 29594
/proc/meminfo: memFree=1821772/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=49500 CPUtime=25.48
/proc/29591/stat : 29591 (pbct) R 29589 29591 29487 0 -1 4202496 12673 0 0 0 2542 6 0 0 25 0 1 0 27900063 50688000 10746 1992294400 134512640 136485738 4292854592 18446744073709551615 135180296 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29591/statm: 12375 10746 160 482 0 11891 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 49500

[startup+51.1009 s]
/proc/loadavg: 1.03 1.01 1.00 2/107 29594
/proc/meminfo: memFree=569744/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=1366252 CPUtime=51.07
/proc/29591/stat : 29591 (pbct) R 29589 29591 29487 0 -1 4202496 361365 0 0 0 4946 161 0 0 25 0 1 0 27900063 1399042048 335483 1992294400 134512640 136485738 4292854592 18446744073709551615 135850714 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29591/statm: 341563 335484 197 482 0 341079 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 1366252



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+55.6007 s]
/proc/loadavg: 1.03 1.00 1.00 2/107 29594
/proc/meminfo: memFree=10752/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=1863144 CPUtime=55.58
/proc/29591/stat : 29591 (pbct) R 29589 29591 29487 0 -1 4202496 493559 0 0 0 5343 215 0 0 25 0 1 0 27900063 1907859456 463834 1992294400 134512640 136485738 4292854592 18446744073709551615 136086046 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29591/statm: 465819 463874 199 482 0 465335 0
Current children cumulated CPU time (s) 55.58
Current children cumulated vsize (KiB) 1863144

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -29591

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

[startup+55.8007 s]
/proc/loadavg: 1.03 1.00 1.00 2/107 29594
/proc/meminfo: memFree=10752/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=1863408 CPUtime=55.59
/proc/29591/stat : 29591 (pbct) S 29589 29591 29487 0 -1 4194304 493633 0 0 0 5343 216 0 0 25 0 1 0 27900063 1908129792 463908 1992294400 134512640 136485738 4292854592 18446744073709551615 135319262 0 16384 4096 16387 18446604437825946944 0 0 17 1 0 0 0
/proc/29591/statm: 465852 463908 199 482 0 465368 0
Current children cumulated CPU time (s) 55.59
Current children cumulated vsize (KiB) 1863408

[startup+56.6009 s]
/proc/loadavg: 1.03 1.00 1.00 1/108 29595
/proc/meminfo: memFree=10640/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=1863408 CPUtime=55.59
/proc/29591/stat : 29591 (pbct) S 29589 29591 29487 0 -1 4194304 493633 0 0 0 5343 216 0 0 25 0 1 0 27900063 1908129792 463908 1992294400 134512640 136485738 4292854592 18446744073709551615 135319262 0 16384 4096 16387 18446604437825946944 0 0 17 1 0 0 0
/proc/29591/statm: 465852 463908 199 482 0 465368 0
Current children cumulated CPU time (s) 55.59
Current children cumulated vsize (KiB) 1863408

[startup+57.401 s]
/proc/loadavg: 1.03 1.00 1.00 1/108 29595
/proc/meminfo: memFree=10640/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=1863408 CPUtime=55.59
/proc/29591/stat : 29591 (pbct) S 29589 29591 29487 0 -1 4194304 493633 0 0 0 5343 216 0 0 25 0 1 0 27900063 1908129792 463908 1992294400 134512640 136485738 4292854592 18446744073709551615 135319262 0 16384 4096 16387 18446604437825946944 0 0 17 1 0 0 0
/proc/29591/statm: 465852 463908 199 482 0 465368 0
Current children cumulated CPU time (s) 55.59
Current children cumulated vsize (KiB) 1863408

[startup+57.6011 s]
/proc/loadavg: 1.03 1.00 1.00 1/108 29595
/proc/meminfo: memFree=10640/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=1863408 CPUtime=55.59
/proc/29591/stat : 29591 (pbct) S 29589 29591 29487 0 -1 4194304 493633 0 0 0 5343 216 0 0 25 0 1 0 27900063 1908129792 463908 1992294400 134512640 136485738 4292854592 18446744073709551615 135319262 0 16384 4096 16387 18446604437825946944 0 0 17 1 0 0 0
/proc/29591/statm: 465852 463908 199 482 0 465368 0
Current children cumulated CPU time (s) 55.59
Current children cumulated vsize (KiB) 1863408

[startup+57.7011 s]
/proc/loadavg: 1.03 1.00 1.00 1/108 29595
/proc/meminfo: memFree=10640/2059040 swapFree=4136080/4192956
[pid=29591] ppid=29589 vsize=0 CPUtime=55.67
/proc/29591/stat : 29591 (pbct) R 29589 29591 29487 0 -1 4195332 493633 0 0 0 5343 224 0 0 18 0 1 0 27900063 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/29591/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 55.67
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 57.7994
CPU time (s): 55.7795
CPU user time (s): 53.4399
CPU system time (s): 2.33964
CPU usage (%): 96.5053
Max. virtual memory (cumulated for all children) (KiB): 1863408

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 53.4399
system time used= 2.33964
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 493633
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= 251

runsolver used 0.089986 second user time and 0.301954 second system time

The end

Launcher Data 

Begin job on node014 at 2010-06-14 15:43:07
IDJOB=2668672
IDBENCH=2299
IDSOLVER=1170
FILE ID=node014/2668672-1276522986
PBS_JOBID= 11173445
Free space on /tmp= 62496 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-n3707.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668672-1276522986/watcher-2668672-1276522986 -o /tmp/evaluation-result-2668672-1276522986/solver-2668672-1276522986 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668672-1276522986.opb

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

MD5SUM BENCH= bd6dfc1cb1b60fa01a3db613e331e5b8
RANDOM SEED=421676476

node014.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		: 3000.258
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	: 6000.51
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		: 3000.258
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:       1865460 kB
Buffers:          7908 kB
Cached:          99576 kB
SwapCached:      10900 kB
Active:          87080 kB
Inactive:        34180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1865460 kB
SwapTotal:     4192956 kB
SwapFree:      4136080 kB
Dirty:           10560 kB
Writeback:           0 kB
AnonPages:       11272 kB
Mapped:           9212 kB
Slab:            50584 kB
PageTables:       4016 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183604 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= 62496 MiB
End job on node014 at 2010-06-14 15:44:05