Trace number 2668519

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? (MO) 34.6337 36.6469

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 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
2.39/2.44	c constraints 36/0 clauses 0/0 units 0
2.39/2.44	c vars 87482
2.39/2.45	c objective 87482 + 0

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-2668519-1276436977/watcher-2668519-1276436977 -o /tmp/evaluation-result-2668519-1276436977/solver-2668519-1276436977 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668519-1276436977.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 22154
/proc/meminfo: memFree=1787736/2059040 swapFree=4140364/4192956
[pid=22154] ppid=22152 vsize=2488 CPUtime=0
/proc/22154/stat : 22154 (pbct) R 22152 22154 21373 0 -1 4202496 309 0 0 0 0 0 0 0 20 0 1 0 17349567 2547712 231 1992294400 134512640 136485738 4286821696 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22154/statm: 622 231 149 482 0 138 0

[startup+0.0145791 s]
/proc/loadavg: 0.92 0.98 0.99 2/106 22154
/proc/meminfo: memFree=1787736/2059040 swapFree=4140364/4192956
[pid=22154] ppid=22152 vsize=2752 CPUtime=0.01
/proc/22154/stat : 22154 (pbct) R 22152 22154 21373 0 -1 4202496 363 0 0 0 1 0 0 0 20 0 1 0 17349567 2818048 285 1992294400 134512640 136485738 4286821696 18446744073709551615 134524699 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22154/statm: 688 285 149 482 0 204 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 2752

[startup+0.101594 s]
/proc/loadavg: 0.92 0.98 0.99 2/106 22154
/proc/meminfo: memFree=1787736/2059040 swapFree=4140364/4192956
[pid=22154] ppid=22152 vsize=5936 CPUtime=0.09
/proc/22154/stat : 22154 (pbct) R 22152 22154 21373 0 -1 4202496 1371 0 0 0 9 0 0 0 23 0 1 0 17349567 6078464 920 1992294400 134512640 136485738 4286821696 18446744073709551615 135411144 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22154/statm: 1484 920 149 482 0 1000 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5936

[startup+0.301629 s]
/proc/loadavg: 0.92 0.98 0.99 2/106 22154
/proc/meminfo: memFree=1787736/2059040 swapFree=4140364/4192956
[pid=22154] ppid=22152 vsize=9564 CPUtime=0.29
/proc/22154/stat : 22154 (pbct) R 22152 22154 21373 0 -1 4202496 2585 0 0 0 29 0 0 0 23 0 1 0 17349567 9793536 1684 1992294400 134512640 136485738 4286821696 18446744073709551615 135177508 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22154/statm: 2391 1684 151 482 0 1907 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9564

[startup+0.701703 s]
/proc/loadavg: 0.92 0.98 0.99 2/106 22154
/proc/meminfo: memFree=1787736/2059040 swapFree=4140364/4192956
[pid=22154] ppid=22152 vsize=18604 CPUtime=0.69
/proc/22154/stat : 22154 (pbct) R 22152 22154 21373 0 -1 4202496 4429 0 0 0 68 1 0 0 25 0 1 0 17349567 19050496 3528 1992294400 134512640 136485738 4286821696 18446744073709551615 135346650 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22154/statm: 4651 3528 153 482 0 4167 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 18604

[startup+1.50085 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 22155
/proc/meminfo: memFree=1767516/2059040 swapFree=4140364/4192956
[pid=22154] ppid=22152 vsize=37344 CPUtime=1.49
/proc/22154/stat : 22154 (pbct) R 22152 22154 21373 0 -1 4202496 8587 0 0 0 146 3 0 0 25 0 1 0 17349567 38240256 7686 1992294400 134512640 136485738 4286821696 18446744073709551615 134536199 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/22154/statm: 9336 7686 153 482 0 8852 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 37344

[startup+3.10114 s]
/proc/loadavg: 1.01 1.00 1.00 2/107 22155
/proc/meminfo: memFree=1745692/2059040 swapFree=4140364/4192956
[pid=22154] ppid=22152 vsize=117164 CPUtime=3.09
/proc/22154/stat : 22154 (pbct) R 22152 22154 21373 0 -1 4202496 27891 0 0 0 297 12 0 0 25 0 1 0 17349567 119975936 26216 1992294400 134512640 136485738 4286821696 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22154/statm: 29291 26216 195 482 0 28807 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 117164

[startup+6.30172 s]
/proc/loadavg: 1.01 1.00 1.00 2/107 22155
/proc/meminfo: memFree=1533652/2059040 swapFree=4140364/4192956
[pid=22154] ppid=22152 vsize=325432 CPUtime=6.29
/proc/22154/stat : 22154 (pbct) R 22152 22154 21373 0 -1 4202496 82888 0 0 0 593 36 0 0 25 0 1 0 17349567 333242368 76656 1992294400 134512640 136485738 4286821696 18446744073709551615 135850714 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22154/statm: 81358 76657 195 482 0 80874 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 325432

[startup+12.7009 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 22155
/proc/meminfo: memFree=1150864/2059040 swapFree=4140364/4192956
[pid=22154] ppid=22152 vsize=687668 CPUtime=12.69
/proc/22154/stat : 22154 (pbct) R 22152 22154 21373 0 -1 4202496 180232 0 0 0 1186 83 0 0 25 0 1 0 17349567 704172032 166697 1992294400 134512640 136485738 4286821696 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22154/statm: 171917 166697 195 482 0 171433 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 687668

[startup+25.5012 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 22155
/proc/meminfo: memFree=539048/2059040 swapFree=4140364/4192956
[pid=22154] ppid=22152 vsize=1282456 CPUtime=25.48
/proc/22154/stat : 22154 (pbct) R 22152 22154 21373 0 -1 4202496 346184 0 0 0 2394 154 0 0 25 0 1 0 17349567 1313234944 315174 1992294400 134512640 136485738 4286821696 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22154/statm: 320614 315174 195 482 0 320130 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1282456



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+34.3009 s]
/proc/loadavg: 1.00 1.00 1.00 3/107 22155
/proc/meminfo: memFree=9624/2059040 swapFree=4140360/4192956
[pid=22154] ppid=22152 vsize=1876828 CPUtime=34.41
/proc/22154/stat : 22154 (pbct) R 22152 22154 21373 0 -1 4202496 503845 0 0 0 3213 228 0 0 25 0 1 0 17349567 1921871872 451577 1992294400 134512640 136485738 4286821696 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22154/statm: 469207 451582 197 482 0 468723 0
Current children cumulated CPU time (s) 34.41
Current children cumulated vsize (KiB) 1876828

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -22154

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

[startup+35.101 s]
/proc/loadavg: 1.00 1.00 1.00 3/107 22155
/proc/meminfo: memFree=9624/2059040 swapFree=4140360/4192956
[pid=22154] ppid=22152 vsize=1881580 CPUtime=34.44
/proc/22154/stat : 22154 (pbct) S 22152 22154 21373 0 -1 4194304 505035 0 0 0 3216 228 0 0 25 0 1 0 17349567 1926737920 452767 1992294400 134512640 136485738 4286821696 18446744073709551615 135319262 0 16384 4096 16387 18446604437833653248 0 0 17 1 0 0 0
/proc/22154/statm: 470395 452767 197 482 0 469911 0
Current children cumulated CPU time (s) 34.44
Current children cumulated vsize (KiB) 1881580

[startup+35.9011 s]
/proc/loadavg: 1.00 1.00 1.00 1/108 22156
/proc/meminfo: memFree=10484/2059040 swapFree=4140360/4192956
[pid=22154] ppid=22152 vsize=1881580 CPUtime=34.44
/proc/22154/stat : 22154 (pbct) S 22152 22154 21373 0 -1 4194304 505035 0 0 0 3216 228 0 0 25 0 1 0 17349567 1926737920 452767 1992294400 134512640 136485738 4286821696 18446744073709551615 135319262 0 16384 4096 16387 18446604437833653248 0 0 17 1 0 0 0
/proc/22154/statm: 470395 452767 197 482 0 469911 0
Current children cumulated CPU time (s) 34.44
Current children cumulated vsize (KiB) 1881580

[startup+36.3012 s]
/proc/loadavg: 1.00 1.00 1.00 1/108 22156
/proc/meminfo: memFree=10484/2059040 swapFree=4140360/4192956
[pid=22154] ppid=22152 vsize=1881580 CPUtime=34.44
/proc/22154/stat : 22154 (pbct) S 22152 22154 21373 0 -1 4194304 505035 0 0 0 3216 228 0 0 25 0 1 0 17349567 1926737920 452767 1992294400 134512640 136485738 4286821696 18446744073709551615 135319262 0 16384 4096 16387 18446604437833653248 0 0 17 1 0 0 0
/proc/22154/statm: 470395 452767 197 482 0 469911 0
Current children cumulated CPU time (s) 34.44
Current children cumulated vsize (KiB) 1881580

[startup+36.5012 s]
/proc/loadavg: 1.00 1.00 1.00 1/108 22156
/proc/meminfo: memFree=10484/2059040 swapFree=4140360/4192956
[pid=22154] ppid=22152 vsize=0 CPUtime=34.48
/proc/22154/stat : 22154 (pbct) R 22152 22154 21373 0 -1 4195332 505035 0 0 0 3216 232 0 0 18 0 1 0 17349567 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/22154/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 34.48
Current children cumulated vsize (KiB) 0

[startup+36.6012 s]
/proc/loadavg: 1.00 1.00 1.00 1/108 22156
/proc/meminfo: memFree=10484/2059040 swapFree=4140360/4192956
[pid=22154] ppid=22152 vsize=0 CPUtime=34.58
/proc/22154/stat : 22154 (pbct) R 22152 22154 21373 0 -1 4195332 505035 0 0 0 3216 242 0 0 18 0 1 0 17349567 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/22154/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 34.58
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 36.6469
CPU time (s): 34.6337
CPU user time (s): 32.1651
CPU system time (s): 2.46862
CPU usage (%): 94.5066
Max. virtual memory (cumulated for all children) (KiB): 1881580

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 32.1651
system time used= 2.46862
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 505035
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= 65

runsolver used 0.091986 second user time and 0.19197 second system time

The end

Launcher Data 

Begin job on node027 at 2010-06-13 15:49:37
IDJOB=2668519
IDBENCH=1526
IDSOLVER=1170
FILE ID=node027/2668519-1276436977
PBS_JOBID= 11173310
Free space on /tmp= 62440 MiB

SOLVER NAME= PB/CT 0.1
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-2668519-1276436977/watcher-2668519-1276436977 -o /tmp/evaluation-result-2668519-1276436977/solver-2668519-1276436977 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668519-1276436977.opb

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

MD5SUM BENCH= dd1a158f1c4d558a5b1acea2c0abe5ea
RANDOM SEED=24327657

node027.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		: 2800.261
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	: 5600.52
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		: 2800.261
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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1788264 kB
Buffers:         53656 kB
Cached:         136604 kB
SwapCached:       6524 kB
Active:         101348 kB
Inactive:       102380 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1788264 kB
SwapTotal:     4192956 kB
SwapFree:      4140364 kB
Dirty:            9184 kB
Writeback:           0 kB
AnonPages:       11124 kB
Mapped:          12952 kB
Slab:            45400 kB
PageTables:       3984 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181980 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264952 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62440 MiB
End job on node027 at 2010-06-13 15:50:14