Trace number 2681943

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) 39.685 39.694

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-maros-r7.opb
MD5SUM0981750c20a5ad85ded6bb04bf23d130
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 10442014720
Optimality of the best value was proved NO
Number of variables282240
Total number of constraints3136
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 constraints3136
Minimum length of a constraint150
Maximum length of a constraint720
Number of terms in the objective function 188160
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 6734508713856
Number of bits of the sum of numbers in the objective function 43
Biggest number in a constraint 536870912000000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 4602477289606474
Number of bits of the biggest sum of numbers53
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
8.70/8.71	c constraints 3136/0 clauses 0/0 units 0
8.70/8.71	c vars 282240
8.70/8.71	c objective 188160 + 0
39.50/39.51	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-2681943-1277487133/watcher-2681943-1277487133 -o /tmp/evaluation-result-2681943-1277487133/solver-2681943-1277487133 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681943-1277487133.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: 0.99 0.98 0.96 3/107 24404
/proc/meminfo: memFree=1811380/2059040 swapFree=4139776/4192956
[pid=24404] ppid=24402 vsize=2416 CPUtime=0
/proc/24404/stat : 24404 (pbct) R 24402 24404 23356 0 -1 4202496 294 0 0 0 0 0 0 0 20 0 1 0 122369421 2473984 213 1992294400 134512640 136421960 4288443040 18446744073709551615 134530396 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24404/statm: 604 214 135 467 0 135 0

[startup+0.047298 s]
/proc/loadavg: 0.99 0.98 0.96 3/107 24404
/proc/meminfo: memFree=1811380/2059040 swapFree=4139776/4192956
[pid=24404] ppid=24402 vsize=4008 CPUtime=0.04
/proc/24404/stat : 24404 (pbct) R 24402 24404 23356 0 -1 4202496 734 0 0 0 4 0 0 0 20 0 1 0 122369421 4104192 506 1992294400 134512640 136421960 4288443040 18446744073709551615 135818454 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24404/statm: 1002 506 135 467 0 533 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 4008

[startup+0.101303 s]
/proc/loadavg: 0.99 0.98 0.96 3/107 24404
/proc/meminfo: memFree=1811380/2059040 swapFree=4139776/4192956
[pid=24404] ppid=24402 vsize=5864 CPUtime=0.09
/proc/24404/stat : 24404 (pbct) R 24402 24404 23356 0 -1 4202496 1339 0 0 0 9 0 0 0 20 0 1 0 122369421 6004736 885 1992294400 134512640 136421960 4288443040 18446744073709551615 134523783 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24404/statm: 1466 885 135 467 0 997 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5864

[startup+0.30032 s]
/proc/loadavg: 0.99 0.98 0.96 3/107 24404
/proc/meminfo: memFree=1811380/2059040 swapFree=4139776/4192956
[pid=24404] ppid=24402 vsize=10284 CPUtime=0.29
/proc/24404/stat : 24404 (pbct) R 24402 24404 23356 0 -1 4202496 3077 0 0 0 28 1 0 0 20 0 1 0 122369421 10530816 2173 1992294400 134512640 136421960 4288443040 18446744073709551615 134523920 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24404/statm: 2571 2174 135 467 0 2102 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 10284

[startup+0.700356 s]
/proc/loadavg: 0.99 0.98 0.96 3/107 24404
/proc/meminfo: memFree=1811380/2059040 swapFree=4139776/4192956
[pid=24404] ppid=24402 vsize=16624 CPUtime=0.69
/proc/24404/stat : 24404 (pbct) R 24402 24404 23356 0 -1 4202496 5147 0 0 0 66 3 0 0 21 0 1 0 122369421 17022976 3216 1992294400 134512640 136421960 4288443040 18446744073709551615 135160337 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24404/statm: 4156 3216 146 467 0 3687 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 16624

[startup+1.50143 s]
/proc/loadavg: 0.99 0.98 0.96 2/108 24405
/proc/meminfo: memFree=1791284/2059040 swapFree=4139776/4192956
[pid=24404] ppid=24402 vsize=33444 CPUtime=1.49
/proc/24404/stat : 24404 (pbct) R 24402 24404 23356 0 -1 4202496 9288 0 0 0 144 5 0 0 23 0 1 0 122369421 34246656 7357 1992294400 134512640 136421960 4288443040 18446744073709551615 135378141 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24404/statm: 8361 7357 146 467 0 7892 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 33444

[startup+3.10157 s]
/proc/loadavg: 0.99 0.98 0.96 2/108 24405
/proc/meminfo: memFree=1768220/2059040 swapFree=4139776/4192956
[pid=24404] ppid=24402 vsize=67236 CPUtime=3.1
/proc/24404/stat : 24404 (pbct) R 24402 24404 23356 0 -1 4202496 17611 0 0 0 301 9 0 0 25 0 1 0 122369421 68849664 15680 1992294400 134512640 136421960 4288443040 18446744073709551615 135162417 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24404/statm: 16809 15680 146 467 0 16340 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 67236

[startup+6.30186 s]
/proc/loadavg: 1.15 1.02 0.97 2/108 24405
/proc/meminfo: memFree=1701136/2059040 swapFree=4139776/4192956
[pid=24404] ppid=24402 vsize=134800 CPUtime=6.29
/proc/24404/stat : 24404 (pbct) R 24402 24404 23356 0 -1 4202496 34265 0 0 0 613 16 0 0 25 0 1 0 122369421 138035200 32334 1992294400 134512640 136421960 4288443040 18446744073709551615 135830551 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/24404/statm: 33700 32334 146 467 0 33231 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 134800

[startup+12.7014 s]
/proc/loadavg: 1.14 1.02 0.97 2/108 24405
/proc/meminfo: memFree=1450904/2059040 swapFree=4139776/4192956
[pid=24404] ppid=24402 vsize=412440 CPUtime=12.69
/proc/24404/stat : 24404 (pbct) R 24402 24404 23356 0 -1 4202496 106449 0 0 0 1218 51 0 0 25 0 1 0 122369421 422338560 99448 1992294400 134512640 136421960 4288443040 18446744073709551615 134706180 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24404/statm: 103110 99448 195 467 0 102641 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 412440

[startup+25.5006 s]
/proc/loadavg: 1.11 1.01 0.97 2/108 24407
/proc/meminfo: memFree=772500/2059040 swapFree=4139776/4192956
[pid=24404] ppid=24402 vsize=1091888 CPUtime=25.48
/proc/24404/stat : 24404 (pbct) R 24402 24404 23356 0 -1 4202496 289058 0 0 0 2422 126 0 0 25 0 1 0 122369421 1118093312 263422 1992294400 134512640 136421960 4288443040 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24404/statm: 272972 263422 195 467 0 272503 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1091888



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+39.5018 s]
/proc/loadavg: 1.08 1.01 0.97 2/108 24407
/proc/meminfo: memFree=39908/2059040 swapFree=4139776/4192956
[pid=24404] ppid=24402 vsize=1847432 CPUtime=39.5
/proc/24404/stat : 24404 (pbct) R 24402 24404 23356 0 -1 4202496 492250 0 0 0 3735 215 0 0 25 0 1 0 122369421 1891770368 442292 1992294400 134512640 136421960 4288443040 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/24404/statm: 461858 442293 195 467 0 461389 0
Current children cumulated CPU time (s) 39.5
Current children cumulated vsize (KiB) 1847432

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

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

[startup+39.6168 s]
/proc/loadavg: 1.08 1.01 0.97 2/108 24407
/proc/meminfo: memFree=39908/2059040 swapFree=4139776/4192956
[pid=24404] ppid=24402 vsize=0 CPUtime=39.6
/proc/24404/stat : 24404 (pbct) R 24402 24404 23356 0 -1 4194308 492258 0 0 0 3735 225 0 0 25 0 1 0 122369421 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/24404/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 39.6
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 39.694
CPU time (s): 39.685
CPU user time (s): 37.3513
CPU system time (s): 2.33365
CPU usage (%): 99.9771
Max. virtual memory (cumulated for all children) (KiB): 1847432

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 37.3513
system time used= 2.33364
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 492258
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= 1
involuntary context switches= 434

runsolver used 0.065989 second user time and 0.204968 second system time

The end

Launcher Data 

Begin job on node025 at 2010-06-25 19:32:17
IDJOB=2681943
IDBENCH=2422
IDSOLVER=1192
FILE ID=node025/2681943-1277487133
PBS_JOBID= 11190517
Free space on /tmp= 62268 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-maros-r7.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681943-1277487133/watcher-2681943-1277487133 -o /tmp/evaluation-result-2681943-1277487133/solver-2681943-1277487133 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681943-1277487133.opb

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

MD5SUM BENCH= 0981750c20a5ad85ded6bb04bf23d130
RANDOM SEED=2119240489

node025.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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1811900 kB
Buffers:         19764 kB
Cached:         128056 kB
SwapCached:       5904 kB
Active:         110308 kB
Inactive:        50920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1811900 kB
SwapTotal:     4192956 kB
SwapFree:      4139776 kB
Dirty:           44164 kB
Writeback:           0 kB
AnonPages:       12080 kB
Mapped:          11912 kB
Slab:            63740 kB
PageTables:       4220 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182916 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= 62264 MiB
End job on node025 at 2010-06-25 19:32:58