Trace number 2682113

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) 31.4042 31.4149

General information on the benchmark

Namenormalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/
miplib2003/normalized-mps-v2-20-10-nw04.opb
MD5SUMdd1a158f1c4d558a5b1acea2c0abe5ea
Bench CategoryOPT-MEDINT (optimisation, medium integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark15306
Best CPU time to get the best result obtained on this benchmark1800.55
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 8431
Optimality of the best value was proved YES
Number of variables87482
Total number of constraints36
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)36
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint599
Maximum length of a constraint42032
Number of terms in the objective function 87482
Biggest coefficient in the objective function 5220
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 120189580
Number of bits of the sum of numbers in the objective function 27
Biggest number in a constraint 5220
Number of bits of the biggest number in a constraint 13
Biggest sum of numbers in a constraint 120189580
Number of bits of the biggest sum of numbers27
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 36/0 clauses 0/0 units 0
2.39/2.40	c vars 87482
2.39/2.41	c objective 87482 + 0
31.21/31.23	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-2682113-1277477304/watcher-2682113-1277477304 -o /tmp/evaluation-result-2682113-1277477304/solver-2682113-1277477304 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682113-1277477304.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 0.97 0.80 2/106 23091
/proc/meminfo: memFree=1777824/2059040 swapFree=4135508/4192956
[pid=23091] ppid=23089 vsize=2416 CPUtime=0
/proc/23091/stat : 23091 (pbct) R 23089 23091 22887 0 -1 4202496 295 0 0 0 0 0 0 0 20 0 1 0 123331765 2473984 215 1992294400 134512640 136421960 4291164752 18446744073709551615 135160329 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23091/statm: 604 215 135 467 0 135 0

[startup+0.0400529 s]
/proc/loadavg: 0.99 0.97 0.80 2/106 23091
/proc/meminfo: memFree=1777824/2059040 swapFree=4135508/4192956
[pid=23091] ppid=23089 vsize=4008 CPUtime=0.03
/proc/23091/stat : 23091 (pbct) R 23089 23091 22887 0 -1 4202496 718 0 0 0 3 0 0 0 20 0 1 0 123331765 4104192 491 1992294400 134512640 136421960 4291164752 18446744073709551615 135160348 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23091/statm: 1002 491 135 467 0 533 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 4008

[startup+0.101058 s]
/proc/loadavg: 0.99 0.97 0.80 2/106 23091
/proc/meminfo: memFree=1777824/2059040 swapFree=4135508/4192956
[pid=23091] ppid=23089 vsize=5864 CPUtime=0.09
/proc/23091/stat : 23091 (pbct) R 23089 23091 22887 0 -1 4202496 1376 0 0 0 9 0 0 0 22 0 1 0 123331765 6004736 923 1992294400 134512640 136421960 4291164752 18446744073709551615 135372694 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23091/statm: 1466 924 135 467 0 997 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5864

[startup+0.301076 s]
/proc/loadavg: 0.99 0.97 0.80 2/106 23091
/proc/meminfo: memFree=1777824/2059040 swapFree=4135508/4192956
[pid=23091] ppid=23089 vsize=9492 CPUtime=0.29
/proc/23091/stat : 23091 (pbct) R 23089 23091 22887 0 -1 4202496 2572 0 0 0 28 1 0 0 22 0 1 0 123331765 9719808 1669 1992294400 134512640 136421960 4291164752 18446744073709551615 135159042 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23091/statm: 2373 1669 137 467 0 1904 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9492

[startup+0.701113 s]
/proc/loadavg: 0.99 0.97 0.80 2/106 23091
/proc/meminfo: memFree=1777824/2059040 swapFree=4135508/4192956
[pid=23091] ppid=23089 vsize=19076 CPUtime=0.69
/proc/23091/stat : 23091 (pbct) R 23089 23091 22887 0 -1 4202496 4557 0 0 0 67 2 0 0 24 0 1 0 123331765 19533824 3654 1992294400 134512640 136421960 4291164752 18446744073709551615 135152740 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23091/statm: 4769 3654 141 467 0 4300 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19076

[startup+1.50119 s]
/proc/loadavg: 0.99 0.97 0.80 2/107 23092
/proc/meminfo: memFree=1757728/2059040 swapFree=4135508/4192956
[pid=23091] ppid=23089 vsize=37272 CPUtime=1.49
/proc/23091/stat : 23091 (pbct) R 23089 23091 22887 0 -1 4202496 8574 0 0 0 144 5 0 0 25 0 1 0 123331765 38166528 7671 1992294400 134512640 136421960 4291164752 18446744073709551615 135806150 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23091/statm: 9318 7671 141 467 0 8849 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 37272

[startup+3.10133 s]
/proc/loadavg: 0.99 0.97 0.80 2/107 23092
/proc/meminfo: memFree=1734664/2059040 swapFree=4135508/4192956
[pid=23091] ppid=23089 vsize=123144 CPUtime=3.09
/proc/23091/stat : 23091 (pbct) R 23089 23091 22887 0 -1 4202496 29457 0 0 0 295 14 0 0 25 0 1 0 123331765 126099456 27780 1992294400 134512640 136421960 4291164752 18446744073709551615 134784068 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23091/statm: 30786 27781 191 467 0 30317 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 123144

[startup+6.30063 s]
/proc/loadavg: 0.99 0.97 0.80 2/107 23092
/proc/meminfo: memFree=1506628/2059040 swapFree=4135508/4192956
[pid=23091] ppid=23089 vsize=350256 CPUtime=6.29
/proc/23091/stat : 23091 (pbct) R 23089 23091 22887 0 -1 4202496 89459 0 0 0 588 41 0 0 25 0 1 0 123331765 358662144 82712 1992294400 134512640 136421960 4291164752 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23091/statm: 87564 82713 191 467 0 87095 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 350256

[startup+12.7012 s]
/proc/loadavg: 0.99 0.97 0.80 2/107 23092
/proc/meminfo: memFree=1094204/2059040 swapFree=4135508/4192956
[pid=23091] ppid=23089 vsize=743256 CPUtime=12.69
/proc/23091/stat : 23091 (pbct) R 23089 23091 22887 0 -1 4202496 195036 0 0 0 1181 88 0 0 25 0 1 0 123331765 761094144 181400 1992294400 134512640 136421960 4291164752 18446744073709551615 134632331 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23091/statm: 185814 181400 191 467 0 185345 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 743256

[startup+25.5014 s]
/proc/loadavg: 0.99 0.97 0.80 2/107 23094
/proc/meminfo: memFree=409972/2059040 swapFree=4135508/4192956
[pid=23091] ppid=23089 vsize=1394112 CPUtime=25.48
/proc/23091/stat : 23091 (pbct) R 23089 23091 22887 0 -1 4202496 377051 0 0 0 2385 163 0 0 25 0 1 0 123331765 1427570688 345551 1992294400 134512640 136421960 4291164752 18446744073709551615 135801284 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23091/statm: 348528 345552 191 467 0 348059 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1394112



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+31.2168 s]
/proc/loadavg: 0.99 0.97 0.80 3/107 23094
/proc/meminfo: memFree=10524/2059040 swapFree=4135508/4192956
[pid=23091] ppid=23089 vsize=1861576 CPUtime=31.21
/proc/23091/stat : 23091 (pbct) R 23089 23091 22887 0 -1 4202496 499981 0 0 0 2903 218 0 0 25 0 1 0 123331765 1906253824 447711 1992294400 134512640 136421960 4291164752 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 0 0 0 0
/proc/23091/statm: 465394 447715 192 467 0 464925 0
Current children cumulated CPU time (s) 31.21
Current children cumulated vsize (KiB) 1861576

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

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

[startup+31.4009 s]
/proc/loadavg: 0.99 0.97 0.80 3/107 23094
/proc/meminfo: memFree=10524/2059040 swapFree=4135508/4192956
[pid=23091] ppid=23089 vsize=0 CPUtime=31.38
/proc/23091/stat : 23091 (pbct) R 23089 23091 22887 0 -1 4194308 500015 0 0 0 2903 235 0 0 25 0 1 0 123331765 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/23091/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 31.38
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 31.4149
CPU time (s): 31.4042
CPU user time (s): 29.0366
CPU system time (s): 2.36764
CPU usage (%): 99.9662
Max. virtual memory (cumulated for all children) (KiB): 1861576

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 29.0366
system time used= 2.36764
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 500015
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= 26

runsolver used 0.054991 second user time and 0.163975 second system time

The end

Launcher Data 

Begin job on node015 at 2010-06-25 16:48:24
IDJOB=2682113
IDBENCH=1526
IDSOLVER=1192
FILE ID=node015/2682113-1277477304
PBS_JOBID= 11190521
Free space on /tmp= 62404 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/OPT-MEDINT/mps-v2-20-10/MIPLIB/miplib2003/normalized-mps-v2-20-10-nw04.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682113-1277477304/watcher-2682113-1277477304 -o /tmp/evaluation-result-2682113-1277477304/solver-2682113-1277477304 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682113-1277477304.opb

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

MD5SUM BENCH= dd1a158f1c4d558a5b1acea2c0abe5ea
RANDOM SEED=946470288

node015.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	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1778352 kB
Buffers:         47796 kB
Cached:         131044 kB
SwapCached:      10640 kB
Active:          76768 kB
Inactive:       115752 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1778352 kB
SwapTotal:     4192956 kB
SwapFree:      4135508 kB
Dirty:            9068 kB
Writeback:           0 kB
AnonPages:       11944 kB
Mapped:           8384 kB
Slab:            66152 kB
PageTables:       4228 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181048 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= 62400 MiB
End job on node015 at 2010-06-25 16:48:58