Trace number 2681948

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) 30.1784 30.187

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-greenbea.opb
MD5SUMfed9726f7ff3b53e29a48b8849ad3d9b
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 variables155427
Total number of constraints2674
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 constraints2674
Minimum length of a constraint11
Maximum length of a constraint7267
Number of terms in the objective function 15205
Biggest coefficient in the objective function 536870912000000
Number of bits for the biggest coefficient in the objective function 49
Sum of the numbers in the objective function 11303756896327816
Number of bits of the sum of numbers in the objective function 54
Biggest number in a constraint 536870912000000
Number of bits of the biggest number in a constraint 49
Biggest sum of numbers in a constraint 24454743822989865
Number of bits of the biggest sum of numbers55
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
2.99/3.05	c constraints 2674/0 clauses 0/0 units 369
2.99/3.05	c vars 155427
2.99/3.05	c objective 15205 + -5446673580575230
30.00/30.01	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-2681948-1277487224/watcher-2681948-1277487224 -o /tmp/evaluation-result-2681948-1277487224/solver-2681948-1277487224 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681948-1277487224.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: 0.95 1.00 1.00 3/105 29291
/proc/meminfo: memFree=1761568/2059040 swapFree=4140364/4192956
[pid=29291] ppid=29289 vsize=2416 CPUtime=0
/proc/29291/stat : 29291 (pbct) R 29289 29291 28558 0 -1 4202496 294 0 0 0 0 0 0 0 24 0 1 0 90016036 2473984 213 1992294400 134512640 136421960 4293979632 18446744073709551615 135160329 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29291/statm: 604 213 138 467 0 135 0

[startup+0.0622959 s]
/proc/loadavg: 0.95 1.00 1.00 3/105 29291
/proc/meminfo: memFree=1761568/2059040 swapFree=4140364/4192956
[pid=29291] ppid=29289 vsize=3136 CPUtime=0.06
/proc/29291/stat : 29291 (pbct) R 29289 29291 28558 0 -1 4202496 540 0 0 0 6 0 0 0 24 0 1 0 90016036 3211264 426 1992294400 134512640 136421960 4293979632 18446744073709551615 135158929 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29291/statm: 784 427 146 467 0 315 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 3136

[startup+0.101299 s]
/proc/loadavg: 0.95 1.00 1.00 3/105 29291
/proc/meminfo: memFree=1761568/2059040 swapFree=4140364/4192956
[pid=29291] ppid=29289 vsize=4196 CPUtime=0.09
/proc/29291/stat : 29291 (pbct) R 29289 29291 28558 0 -1 4202496 779 0 0 0 9 0 0 0 24 0 1 0 90016036 4296704 665 1992294400 134512640 136421960 4293979632 18446744073709551615 135154981 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29291/statm: 1049 665 146 467 0 580 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4196

[startup+0.301318 s]
/proc/loadavg: 0.95 1.00 1.00 3/105 29291
/proc/meminfo: memFree=1761568/2059040 swapFree=4140364/4192956
[pid=29291] ppid=29289 vsize=8684 CPUtime=0.29
/proc/29291/stat : 29291 (pbct) R 29289 29291 28558 0 -1 4202496 1903 0 0 0 29 0 0 0 25 0 1 0 90016036 8892416 1789 1992294400 134512640 136421960 4293979632 18446744073709551615 135160343 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29291/statm: 2171 1789 146 467 0 1702 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 8684

[startup+0.701357 s]
/proc/loadavg: 0.95 1.00 1.00 3/105 29291
/proc/meminfo: memFree=1761568/2059040 swapFree=4140364/4192956
[pid=29291] ppid=29289 vsize=17572 CPUtime=0.69
/proc/29291/stat : 29291 (pbct) R 29289 29291 28558 0 -1 4202496 4053 0 0 0 67 2 0 0 25 0 1 0 90016036 17993728 3939 1992294400 134512640 136421960 4293979632 18446744073709551615 135818227 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29291/statm: 4393 3939 146 467 0 3924 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 17572

[startup+1.50143 s]
/proc/loadavg: 0.95 1.00 1.00 2/106 29292
/proc/meminfo: memFree=1740232/2059040 swapFree=4140364/4192956
[pid=29291] ppid=29289 vsize=34748 CPUtime=1.49
/proc/29291/stat : 29291 (pbct) R 29289 29291 28558 0 -1 4202496 8075 0 0 0 145 4 0 0 25 0 1 0 90016036 35581952 7961 1992294400 134512640 136421960 4293979632 18446744073709551615 135809653 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/29291/statm: 8687 7962 146 467 0 8218 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 34748

[startup+3.10159 s]
/proc/loadavg: 1.04 1.01 1.00 2/106 29292
/proc/meminfo: memFree=1716424/2059040 swapFree=4140364/4192956
[pid=29291] ppid=29289 vsize=71364 CPUtime=3.09
/proc/29291/stat : 29291 (pbct) R 29289 29291 28558 0 -1 4202496 16754 0 0 0 301 8 0 0 25 0 1 0 90016036 73076736 16640 1992294400 134512640 136421960 4293979632 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29291/statm: 17841 16642 195 467 0 17372 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 71364

[startup+6.3009 s]
/proc/loadavg: 1.04 1.01 1.00 2/106 29292
/proc/meminfo: memFree=1494340/2059040 swapFree=4140364/4192956
[pid=29291] ppid=29289 vsize=347692 CPUtime=6.29
/proc/29291/stat : 29291 (pbct) R 29289 29291 28558 0 -1 4202496 88976 0 0 0 587 42 0 0 25 0 1 0 90016036 356036608 83835 1992294400 134512640 136421960 4293979632 18446744073709551615 135809833 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29291/statm: 86923 83836 195 467 0 86454 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 347692

[startup+12.7015 s]
/proc/loadavg: 1.18 1.04 1.01 2/106 29294
/proc/meminfo: memFree=1026364/2059040 swapFree=4140364/4192956
[pid=29291] ppid=29289 vsize=793968 CPUtime=12.69
/proc/29291/stat : 29291 (pbct) R 29289 29291 28558 0 -1 4202496 207074 0 0 0 1176 93 0 0 25 0 1 0 90016036 813023232 195334 1992294400 134512640 136421960 4293979632 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29291/statm: 198492 195335 195 467 0 198023 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 793968

[startup+25.5008 s]
/proc/loadavg: 1.15 1.04 1.01 2/106 29294
/proc/meminfo: memFree=265004/2059040 swapFree=4140364/4192956
[pid=29291] ppid=29289 vsize=1523708 CPUtime=25.48
/proc/29291/stat : 29291 (pbct) R 29289 29291 28558 0 -1 4202496 406188 0 0 0 2375 173 0 0 25 0 1 0 90016036 1560276992 377805 1992294400 134512640 136421960 4293979632 18446744073709551615 135430206 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29291/statm: 380927 377806 195 467 0 380458 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1523708



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+30.0012 s]
/proc/loadavg: 1.14 1.04 1.01 2/106 29294
/proc/meminfo: memFree=10588/2059040 swapFree=4140364/4192956
[pid=29291] ppid=29289 vsize=1846264 CPUtime=30
/proc/29291/stat : 29291 (pbct) R 29289 29291 28558 0 -1 4202496 490788 0 0 0 2791 209 0 0 25 0 1 0 90016036 1890574336 441921 1992294400 134512640 136421960 4293979632 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29291/statm: 461566 441922 195 467 0 461097 0
Current children cumulated CPU time (s) 30
Current children cumulated vsize (KiB) 1846264

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

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

[startup+30.1202 s]
/proc/loadavg: 1.14 1.04 1.01 2/106 29294
/proc/meminfo: memFree=10588/2059040 swapFree=4140364/4192956
[pid=29291] ppid=29289 vsize=0 CPUtime=30.1
/proc/29291/stat : 29291 (pbct) R 29289 29291 28558 0 -1 4194308 490796 0 0 0 2791 219 0 0 25 0 1 0 90016036 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/29291/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 30.1
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 30.187
CPU time (s): 30.1784
CPU user time (s): 27.9188
CPU system time (s): 2.25966
CPU usage (%): 99.9716
Max. virtual memory (cumulated for all children) (KiB): 1846264

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 27.9188
system time used= 2.25966
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 490796
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= 28

runsolver used 0.047992 second user time and 0.161975 second system time

The end

Launcher Data 

Begin job on node089 at 2010-06-25 19:33:45
IDJOB=2681948
IDBENCH=2438
IDSOLVER=1192
FILE ID=node089/2681948-1277487224
PBS_JOBID= 11190479
Free space on /tmp= 62540 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-greenbea.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681948-1277487224/watcher-2681948-1277487224 -o /tmp/evaluation-result-2681948-1277487224/solver-2681948-1277487224 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681948-1277487224.opb

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

MD5SUM BENCH= fed9726f7ff3b53e29a48b8849ad3d9b
RANDOM SEED=738295380

node089.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		: 3000.244
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		: 3000.244
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	: 5999.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1761972 kB
Buffers:         35796 kB
Cached:         158316 kB
SwapCached:       5456 kB
Active:          84488 kB
Inactive:       122080 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1761972 kB
SwapTotal:     4192956 kB
SwapFree:      4140364 kB
Dirty:           16120 kB
Writeback:           0 kB
AnonPages:       11004 kB
Mapped:          11888 kB
Slab:            68692 kB
PageTables:       4156 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181444 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= 62540 MiB
End job on node089 at 2010-06-25 19:34:17