Trace number 2681958

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) 31.7842 31.7928

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-degen3.opb
MD5SUM180182351d074e1d8188f1fe7258cbed
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 variables54540
Total number of constraints1503
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 constraints1503
Minimum length of a constraint60
Maximum length of a constraint6090
Number of terms in the objective function 47190
Biggest coefficient in the objective function 1001264250880
Number of bits for the biggest coefficient in the objective function 40
Sum of the numbers in the objective function 339379725479256
Number of bits of the sum of numbers in the objective function 49
Biggest number in a constraint 1001264250880
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 339379725479256
Number of bits of the biggest sum of numbers49
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
2.39/2.40	c constraints 1503/0 clauses 0/0 units 0
2.39/2.40	c vars 54540
2.39/2.40	c objective 47190 + -312616710540981
31.61/31.62	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-2681958-1277487961/watcher-2681958-1277487961 -o /tmp/evaluation-result-2681958-1277487961/solver-2681958-1277487961 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681958-1277487961.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: 0.92 0.98 0.99 2/106 28470
/proc/meminfo: memFree=1781788/2059040 swapFree=4140024/4192956
[pid=28470] ppid=28468 vsize=2416 CPUtime=0
/proc/28470/stat : 28470 (pbct) R 28468 28470 27682 0 -1 4202496 294 0 0 0 0 0 0 0 22 0 1 0 90089882 2473984 214 1992294400 134512640 136421960 4293849056 18446744073709551615 135873694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28470/statm: 604 215 138 467 0 135 0

[startup+0.0326791 s]
/proc/loadavg: 0.92 0.98 0.99 2/106 28470
/proc/meminfo: memFree=1781788/2059040 swapFree=4140024/4192956
[pid=28470] ppid=28468 vsize=3004 CPUtime=0.03
/proc/28470/stat : 28470 (pbct) R 28468 28470 27682 0 -1 4202496 479 0 0 0 3 0 0 0 22 0 1 0 90089882 3076096 366 1992294400 134512640 136421960 4293849056 18446744073709551615 134523909 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28470/statm: 751 366 138 467 0 282 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3004

[startup+0.100685 s]
/proc/loadavg: 0.92 0.98 0.99 2/106 28470
/proc/meminfo: memFree=1781788/2059040 swapFree=4140024/4192956
[pid=28470] ppid=28468 vsize=5864 CPUtime=0.09
/proc/28470/stat : 28470 (pbct) R 28468 28470 27682 0 -1 4202496 1318 0 0 0 9 0 0 0 25 0 1 0 90089882 6004736 865 1992294400 134512640 136421960 4293849056 18446744073709551615 135380585 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28470/statm: 1466 867 138 467 0 997 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5864

[startup+0.300705 s]
/proc/loadavg: 0.92 0.98 0.99 2/106 28470
/proc/meminfo: memFree=1781788/2059040 swapFree=4140024/4192956
[pid=28470] ppid=28468 vsize=9064 CPUtime=0.29
/proc/28470/stat : 28470 (pbct) R 28468 28470 27682 0 -1 4202496 2131 0 0 0 29 0 0 0 25 0 1 0 90089882 9281536 1678 1992294400 134512640 136421960 4293849056 18446744073709551615 135873694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28470/statm: 2266 1678 146 467 0 1797 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9064

[startup+0.700747 s]
/proc/loadavg: 0.92 0.98 0.99 2/106 28470
/proc/meminfo: memFree=1781788/2059040 swapFree=4140024/4192956
[pid=28470] ppid=28468 vsize=19052 CPUtime=0.69
/proc/28470/stat : 28470 (pbct) R 28468 28470 27682 0 -1 4202496 4490 0 0 0 68 1 0 0 25 0 1 0 90089882 19509248 4037 1992294400 134512640 136421960 4293849056 18446744073709551615 135158961 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28470/statm: 4763 4037 146 467 0 4294 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19052

[startup+1.50083 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 28471
/proc/meminfo: memFree=1759088/2059040 swapFree=4140024/4192956
[pid=28470] ppid=28468 vsize=39500 CPUtime=1.49
/proc/28470/stat : 28470 (pbct) R 28468 28470 27682 0 -1 4202496 9130 0 0 0 146 3 0 0 25 0 1 0 90089882 40448000 8677 1992294400 134512640 136421960 4293849056 18446744073709551615 134531226 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/28470/statm: 9875 8677 146 467 0 9406 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 39500

[startup+3.10099 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 28471
/proc/meminfo: memFree=1733544/2059040 swapFree=4140024/4192956
[pid=28470] ppid=28468 vsize=136216 CPUtime=3.09
/proc/28470/stat : 28470 (pbct) R 28468 28470 27682 0 -1 4202496 32893 0 0 0 296 13 0 0 25 0 1 0 90089882 139485184 31925 1992294400 134512640 136421960 4293849056 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28470/statm: 34054 31925 195 467 0 33585 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 136216

[startup+6.30133 s]
/proc/loadavg: 1.01 1.00 1.00 2/107 28471
/proc/meminfo: memFree=1485048/2059040 swapFree=4140024/4192956
[pid=28470] ppid=28468 vsize=366144 CPUtime=6.29
/proc/28470/stat : 28470 (pbct) R 28468 28470 27682 0 -1 4202496 93812 0 0 0 589 40 0 0 25 0 1 0 90089882 374931456 88289 1992294400 134512640 136421960 4293849056 18446744073709551615 134710469 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28470/statm: 91536 88290 195 467 0 91067 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 366144

[startup+12.701 s]
/proc/loadavg: 1.17 1.03 1.01 2/107 28471
/proc/meminfo: memFree=1122976/2059040 swapFree=4140024/4192956
[pid=28470] ppid=28468 vsize=710448 CPUtime=12.69
/proc/28470/stat : 28470 (pbct) R 28468 28470 27682 0 -1 4202496 188329 0 0 0 1195 74 0 0 25 0 1 0 90089882 727498752 174798 1992294400 134512640 136421960 4293849056 18446744073709551615 135651458 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28470/statm: 177612 174799 195 467 0 177143 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 710448

[startup+25.5013 s]
/proc/loadavg: 1.41 1.10 1.03 2/107 28471
/proc/meminfo: memFree=413572/2059040 swapFree=4140024/4192956
[pid=28470] ppid=28468 vsize=1388668 CPUtime=25.48
/proc/28470/stat : 28470 (pbct) R 28468 28470 27682 0 -1 4202496 373510 0 0 0 2396 152 0 0 25 0 1 0 90089882 1421996032 345509 1992294400 134512640 136421960 4293849056 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28470/statm: 347167 345509 195 467 0 346698 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1388668



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+31.602 s]
/proc/loadavg: 1.38 1.09 1.03 2/107 28471
/proc/meminfo: memFree=9632/2059040 swapFree=4140024/4192956
[pid=28470] ppid=28468 vsize=1846464 CPUtime=31.61
/proc/28470/stat : 28470 (pbct) R 28468 28470 27682 0 -1 4202496 494572 0 0 0 2959 202 0 0 25 0 1 0 90089882 1890779136 445322 1992294400 134512640 136421960 4293849056 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28470/statm: 461616 445324 195 467 0 461147 0
Current children cumulated CPU time (s) 31.61
Current children cumulated vsize (KiB) 1846464

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

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

[startup+31.722 s]
/proc/loadavg: 1.38 1.09 1.03 2/107 28471
/proc/meminfo: memFree=9632/2059040 swapFree=4140024/4192956
[pid=28470] ppid=28468 vsize=0 CPUtime=31.71
/proc/28470/stat : 28470 (pbct) R 28468 28470 27682 0 -1 4194308 494586 0 0 0 2959 212 0 0 25 0 1 0 90089882 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/28470/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 31.71
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 31.7928
CPU time (s): 31.7842
CPU user time (s): 29.5935
CPU system time (s): 2.19067
CPU usage (%): 99.9729
Max. virtual memory (cumulated for all children) (KiB): 1846464

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.5935
system time used= 2.19067
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 494586
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= 29

runsolver used 0.067989 second user time and 0.154976 second system time

The end

Launcher Data 

Begin job on node083 at 2010-06-25 19:46:02
IDJOB=2681958
IDBENCH=2464
IDSOLVER=1192
FILE ID=node083/2681958-1277487961
PBS_JOBID= 11190485
Free space on /tmp= 62484 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-degen3.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681958-1277487961/watcher-2681958-1277487961 -o /tmp/evaluation-result-2681958-1277487961/solver-2681958-1277487961 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681958-1277487961.opb

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

MD5SUM BENCH= 180182351d074e1d8188f1fe7258cbed
RANDOM SEED=2033371990

node083.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		: 3000.262
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	: 6000.52
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		: 3000.262
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	: 5999.40
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1782308 kB
Buffers:         54728 kB
Cached:         123304 kB
SwapCached:       5404 kB
Active:          66996 kB
Inactive:       123968 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1782308 kB
SwapTotal:     4192956 kB
SwapFree:      4140024 kB
Dirty:           12504 kB
Writeback:           0 kB
AnonPages:       11556 kB
Mapped:          12012 kB
Slab:            63624 kB
PageTables:       4168 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182640 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= 62484 MiB
End job on node083 at 2010-06-25 19:46:35