Trace number 2681905

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 fixed? (MO) 31.9751 32.0063

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-dano3_5.opb
MD5SUM143c67a6efdf0b74421c6a96157a0df7
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 variables404336
Total number of constraints3663
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)5
Number of constraints which are nor clauses,nor cardinality constraints3658
Minimum length of a constraint11
Maximum length of a constraint15900
Number of terms in the objective function 30
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 1073741823
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 134217728000
Number of bits of the biggest number in a constraint 37
Biggest sum of numbers in a constraint 569083166190
Number of bits of the biggest sum of numbers40
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 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
7.69/7.80	c constraints 3663/0 clauses 0/0 units 5628
7.69/7.80	c vars 404336
7.69/7.80	c objective 30 + 0
31.79/31.82	s UNKNOWN

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-2681905-1277484701/watcher-2681905-1277484701 -o /tmp/evaluation-result-2681905-1277484701/solver-2681905-1277484701 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681905-1277484701.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: 1.04 1.04 1.00 3/106 29858
/proc/meminfo: memFree=1833384/2059040 swapFree=4139836/4192956
[pid=29858] ppid=29856 vsize=2268 CPUtime=0
/proc/29858/stat : 29858 (pbct) R 29856 29858 29396 0 -1 4202496 289 0 0 0 0 0 0 0 17 0 1 0 89762579 2322432 208 1992294400 134512640 136421960 4290844032 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29858/statm: 567 209 145 467 0 98 0

[startup+0.055416 s]
/proc/loadavg: 1.04 1.04 1.00 3/106 29858
/proc/meminfo: memFree=1833384/2059040 swapFree=4139836/4192956
[pid=29858] ppid=29856 vsize=3516 CPUtime=0.05
/proc/29858/stat : 29858 (pbct) R 29856 29858 29396 0 -1 4202496 570 0 0 0 5 0 0 0 17 0 1 0 89762579 3600384 489 1992294400 134512640 136421960 4290844032 18446744073709551615 135378141 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29858/statm: 879 489 145 467 0 410 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 3516

[startup+0.101423 s]
/proc/loadavg: 1.04 1.04 1.00 3/106 29858
/proc/meminfo: memFree=1833384/2059040 swapFree=4139836/4192956
[pid=29858] ppid=29856 vsize=4644 CPUtime=0.09
/proc/29858/stat : 29858 (pbct) R 29856 29858 29396 0 -1 4202496 831 0 0 0 9 0 0 0 17 0 1 0 89762579 4755456 750 1992294400 134512640 136421960 4290844032 18446744073709551615 135160329 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29858/statm: 1161 751 145 467 0 692 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4644

[startup+0.301459 s]
/proc/loadavg: 1.04 1.04 1.00 3/106 29858
/proc/meminfo: memFree=1833384/2059040 swapFree=4139836/4192956
[pid=29858] ppid=29856 vsize=9620 CPUtime=0.29
/proc/29858/stat : 29858 (pbct) R 29856 29858 29396 0 -1 4202496 1948 0 0 0 28 1 0 0 17 0 1 0 89762579 9850880 1867 1992294400 134512640 136421960 4290844032 18446744073709551615 135527118 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29858/statm: 2405 1867 145 467 0 1936 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9620

[startup+0.701532 s]
/proc/loadavg: 1.04 1.04 1.00 3/106 29858
/proc/meminfo: memFree=1833384/2059040 swapFree=4139836/4192956
[pid=29858] ppid=29856 vsize=19692 CPUtime=0.69
/proc/29858/stat : 29858 (pbct) R 29856 29858 29396 0 -1 4202496 4186 0 0 0 67 2 0 0 17 0 1 0 89762579 20164608 4105 1992294400 134512640 136421960 4290844032 18446744073709551615 135372741 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29858/statm: 4923 4105 145 467 0 4454 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19692

[startup+1.50168 s]
/proc/loadavg: 1.04 1.04 1.00 2/107 29859
/proc/meminfo: memFree=1810808/2059040 swapFree=4139836/4192956
[pid=29858] ppid=29856 vsize=39544 CPUtime=1.49
/proc/29858/stat : 29858 (pbct) R 29856 29858 29396 0 -1 4202496 8642 0 0 0 145 4 0 0 18 0 1 0 89762579 40493056 8561 1992294400 134512640 136421960 4290844032 18446744073709551615 135818281 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29858/statm: 9886 8561 145 467 0 9417 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 39544

[startup+3.10097 s]
/proc/loadavg: 1.04 1.04 1.00 2/107 29861
/proc/meminfo: memFree=1786132/2059040 swapFree=4139836/4192956
[pid=29858] ppid=29856 vsize=77780 CPUtime=3.09
/proc/29858/stat : 29858 (pbct) R 29856 29858 29396 0 -1 4202496 17603 0 0 0 300 9 0 0 21 0 1 0 89762579 79646720 17522 1992294400 134512640 136421960 4290844032 18446744073709551615 134531602 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29858/statm: 19445 17523 146 467 0 18976 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 77780

[startup+6.30155 s]
/proc/loadavg: 1.03 1.04 1.00 2/107 29861
/proc/meminfo: memFree=1718924/2059040 swapFree=4139836/4192956
[pid=29858] ppid=29856 vsize=142304 CPUtime=6.29
/proc/29858/stat : 29858 (pbct) R 29856 29858 29396 0 -1 4202496 33503 0 0 0 613 16 0 0 25 0 1 0 89762579 145719296 33389 1992294400 134512640 136421960 4290844032 18446744073709551615 135818454 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29858/statm: 35576 33389 146 467 0 35107 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 142304

[startup+12.7007 s]
/proc/loadavg: 1.03 1.04 1.00 2/107 29861
/proc/meminfo: memFree=1359076/2059040 swapFree=4139836/4192956
[pid=29858] ppid=29856 vsize=537640 CPUtime=12.68
/proc/29858/stat : 29858 (pbct) R 29856 29858 29396 0 -1 4202496 136490 0 0 0 1202 66 0 0 25 0 1 0 89762579 550543360 130836 1992294400 134512640 136421960 4290844032 18446744073709551615 134707022 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29858/statm: 134410 130836 195 467 0 133941 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 537640

[startup+25.501 s]
/proc/loadavg: 1.02 1.04 1.00 2/107 29861
/proc/meminfo: memFree=438128/2059040 swapFree=4139836/4192956
[pid=29858] ppid=29856 vsize=1449296 CPUtime=25.48
/proc/29858/stat : 29858 (pbct) R 29856 29858 29396 0 -1 4202496 378530 0 0 0 2374 174 0 0 25 0 1 0 89762579 1484079104 353991 1992294400 134512640 136421960 4290844032 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29858/statm: 362324 353992 195 467 0 361855 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1449296



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+31.8119 s]
/proc/loadavg: 1.02 1.04 1.00 3/107 29861
/proc/meminfo: memFree=9972/2059040 swapFree=4139836/4192956
[pid=29858] ppid=29856 vsize=1847588 CPUtime=31.79
/proc/29858/stat : 29858 (pbct) R 29856 29858 29396 0 -1 4202496 486828 0 0 0 2955 224 0 0 25 0 1 0 89762579 1891930112 458446 1992294400 134512640 136421960 4290844032 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 2
/proc/29858/statm: 461897 458446 195 467 0 461428 0
Current children cumulated CPU time (s) 31.79
Current children cumulated vsize (KiB) 1847588

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

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

[startup+32.0012 s]
/proc/loadavg: 1.02 1.04 1.00 3/107 29861
/proc/meminfo: memFree=9972/2059040 swapFree=4139836/4192956
[pid=29858] ppid=29856 vsize=0 CPUtime=31.96
/proc/29858/stat : 29858 (pbct) R 29856 29858 29396 0 -1 4194308 486839 0 0 0 2955 241 0 0 25 0 1 0 89762579 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 2
/proc/29858/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 31.96
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 32.0063
CPU time (s): 31.9751
CPU user time (s): 29.5515
CPU system time (s): 2.42363
CPU usage (%): 99.9028
Max. virtual memory (cumulated for all children) (KiB): 1847588

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.5515
system time used= 2.42363
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 486839
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= 31

runsolver used 0.035994 second user time and 0.187971 second system time

The end

Launcher Data 

Begin job on node044 at 2010-06-25 18:51:43
IDJOB=2681905
IDBENCH=2314
IDSOLVER=1192
FILE ID=node044/2681905-1277484701
PBS_JOBID= 11190501
Free space on /tmp= 62192 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-dano3_5.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681905-1277484701/watcher-2681905-1277484701 -o /tmp/evaluation-result-2681905-1277484701/solver-2681905-1277484701 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681905-1277484701.opb

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

MD5SUM BENCH= 143c67a6efdf0b74421c6a96157a0df7
RANDOM SEED=1625711636

node044.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		: 3000.266
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	: 6000.53
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		: 3000.266
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1833912 kB
Buffers:         19272 kB
Cached:         128184 kB
SwapCached:       6084 kB
Active:         114692 kB
Inactive:        45824 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1833912 kB
SwapTotal:     4192956 kB
SwapFree:      4139836 kB
Dirty:           34184 kB
Writeback:           0 kB
AnonPages:       11728 kB
Mapped:          12016 kB
Slab:            42560 kB
PageTables:       4128 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181320 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= 62192 MiB
End job on node044 at 2010-06-25 18:52:17