Trace number 2668321

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) 34.6877 36.8109

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-dano3_4.opb
MD5SUM77442b3482c8e96813b174683c20fffc
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 variables404566
Total number of constraints3686
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)4
Number of constraints which are nor clauses,nor cardinality constraints3682
Minimum length of a constraint11
Maximum length of a constraint15900
Number of terms in the objective function 30
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 1073741823
Number of bits of the sum of numbers in the objective function 30
Biggest number in a constraint 134217728000
Number of bits of the biggest number in a constraint 37
Biggest sum of numbers in a constraint 569083166190
Number of bits of the biggest sum of numbers40
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
7.99/8.03	c constraints 3686/0 clauses 0/0 units 5601
7.99/8.03	c vars 404566
7.99/8.03	c objective 30 + 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-2668321-1276532186/watcher-2668321-1276532186 -o /tmp/evaluation-result-2668321-1276532186/solver-2668321-1276532186 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668321-1276532186.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 3/106 32399
/proc/meminfo: memFree=1713768/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=2340 CPUtime=0
/proc/32399/stat : 32399 (pbct) R 32397 32399 31740 0 -1 4202496 294 0 0 0 0 0 0 0 20 0 1 0 28822836 2396160 217 1992294400 134512640 136485738 4292876304 18446744073709551615 135850441 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32399/statm: 585 217 156 482 0 101 0

[startup+0.03451 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 32399
/proc/meminfo: memFree=1713768/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=3012 CPUtime=0.03
/proc/32399/stat : 32399 (pbct) R 32397 32399 31740 0 -1 4202496 455 0 0 0 3 0 0 0 20 0 1 0 28822836 3084288 378 1992294400 134512640 136485738 4292876304 18446744073709551615 135844778 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32399/statm: 753 378 156 482 0 269 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 3012

[startup+0.101518 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 32399
/proc/meminfo: memFree=1713768/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=4568 CPUtime=0.09
/proc/32399/stat : 32399 (pbct) R 32397 32399 31740 0 -1 4202496 814 0 0 0 9 0 0 0 20 0 1 0 28822836 4677632 737 1992294400 134512640 136485738 4292876304 18446744073709551615 135416516 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32399/statm: 1142 739 156 482 0 658 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4568

[startup+0.301541 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 32399
/proc/meminfo: memFree=1713768/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=9528 CPUtime=0.29
/proc/32399/stat : 32399 (pbct) R 32397 32399 31740 0 -1 4202496 1905 0 0 0 29 0 0 0 20 0 1 0 28822836 9756672 1828 1992294400 134512640 136485738 4292876304 18446744073709551615 135565571 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32399/statm: 2382 1828 156 482 0 1898 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 9528

[startup+0.701589 s]
/proc/loadavg: 0.92 0.98 0.99 3/106 32399
/proc/meminfo: memFree=1713768/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=19184 CPUtime=0.69
/proc/32399/stat : 32399 (pbct) R 32397 32399 31740 0 -1 4202496 4071 0 0 0 68 1 0 0 21 0 1 0 28822836 19644416 3994 1992294400 134512640 136485738 4292876304 18446744073709551615 135856849 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32399/statm: 4796 3996 156 482 0 4312 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 19184

[startup+1.50168 s]
/proc/loadavg: 0.92 0.98 0.99 2/107 32400
/proc/meminfo: memFree=1690448/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=38324 CPUtime=1.49
/proc/32399/stat : 32399 (pbct) R 32397 32399 31740 0 -1 4202496 8357 0 0 0 145 4 0 0 23 0 1 0 28822836 39243776 8280 1992294400 134512640 136485738 4292876304 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32399/statm: 9581 8280 156 482 0 9097 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 38324

[startup+3.10087 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 32400
/proc/meminfo: memFree=1667880/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=75636 CPUtime=3.09
/proc/32399/stat : 32399 (pbct) R 32397 32399 31740 0 -1 4202496 17045 0 0 0 302 7 0 0 25 0 1 0 28822836 77451264 16968 1992294400 134512640 136485738 4292876304 18446744073709551615 135178825 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32399/statm: 18909 16968 157 482 0 18425 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 75636

[startup+6.30125 s]
/proc/loadavg: 0.93 0.98 0.99 2/107 32400
/proc/meminfo: memFree=1601788/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=138448 CPUtime=6.29
/proc/32399/stat : 32399 (pbct) R 32397 32399 31740 0 -1 4202496 32539 0 0 0 615 14 0 0 25 0 1 0 28822836 141770752 32429 1992294400 134512640 136485738 4292876304 18446744073709551615 135849023 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/32399/statm: 34612 32429 157 482 0 34128 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 138448

[startup+12.701 s]
/proc/loadavg: 0.94 0.98 0.99 2/107 32402
/proc/meminfo: memFree=1281868/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=497600 CPUtime=12.69
/proc/32399/stat : 32399 (pbct) R 32397 32399 31740 0 -1 4202496 125880 0 0 0 1213 56 0 0 25 0 1 0 28822836 509542400 120230 1992294400 134512640 136485738 4292876304 18446744073709551615 134776226 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32399/statm: 124400 120231 197 482 0 123916 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 497600

[startup+25.5015 s]
/proc/loadavg: 0.95 0.98 0.99 2/107 32402
/proc/meminfo: memFree=441272/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=1331616 CPUtime=25.49
/proc/32399/stat : 32399 (pbct) R 32397 32399 31740 0 -1 4202496 347590 0 0 0 2402 147 0 0 25 0 1 0 28822836 1363574784 323055 1992294400 134512640 136485738 4292876304 18446744073709551615 134725262 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/32399/statm: 332904 323056 197 482 0 332420 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1331616



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+34.6016 s]
/proc/loadavg: 0.95 0.98 0.99 2/107 32402
/proc/meminfo: memFree=9648/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=1844352 CPUtime=34.49
/proc/32399/stat : 32399 (pbct) R 32397 32399 31740 0 -1 4202496 485981 0 0 0 3239 210 0 0 25 0 1 0 28822836 1888616448 457603 1992294400 134512640 136485738 4292876304 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 10
/proc/32399/statm: 461088 457604 197 482 0 460604 0
Current children cumulated CPU time (s) 34.49
Current children cumulated vsize (KiB) 1844352

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

Sending SIGKILL to process tree (bottom up)

Sending SIGKILL to -32399

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

[startup+35.0016 s]
/proc/loadavg: 0.95 0.98 0.99 2/107 32402
/proc/meminfo: memFree=9648/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=1844352 CPUtime=34.49
/proc/32399/stat : 32399 (pbct) S 32397 32399 31740 0 -1 4194304 485988 0 0 0 3239 210 0 0 25 0 1 0 28822836 1888616448 457610 1992294400 134512640 136485738 4292876304 18446744073709551615 135319262 0 16384 4096 16387 18446604437879030016 0 0 17 1 0 0 10
/proc/32399/statm: 461088 457610 198 482 0 460604 0
Current children cumulated CPU time (s) 34.49
Current children cumulated vsize (KiB) 1844352

[startup+35.8017 s]
/proc/loadavg: 0.95 0.98 0.99 1/108 32403
/proc/meminfo: memFree=10936/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=1844352 CPUtime=34.49
/proc/32399/stat : 32399 (pbct) S 32397 32399 31740 0 -1 4194304 485988 0 0 0 3239 210 0 0 25 0 1 0 28822836 1888616448 457610 1992294400 134512640 136485738 4292876304 18446744073709551615 135319262 0 16384 4096 16387 18446604437879030016 0 0 17 1 0 0 10
/proc/32399/statm: 461088 457610 198 482 0 460604 0
Current children cumulated CPU time (s) 34.49
Current children cumulated vsize (KiB) 1844352

[startup+36.6018 s]
/proc/loadavg: 0.95 0.98 0.99 1/108 32403
/proc/meminfo: memFree=10936/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=1844352 CPUtime=34.49
/proc/32399/stat : 32399 (pbct) S 32397 32399 31740 0 -1 4194304 485988 0 0 0 3239 210 0 0 25 0 1 0 28822836 1888616448 457610 1992294400 134512640 136485738 4292876304 18446744073709551615 135319262 0 16384 4096 16387 18446604437879030016 0 0 17 1 0 0 10
/proc/32399/statm: 461088 457610 198 482 0 460604 0
Current children cumulated CPU time (s) 34.49
Current children cumulated vsize (KiB) 1844352

[startup+36.8018 s]
/proc/loadavg: 0.95 0.98 0.99 1/108 32403
/proc/meminfo: memFree=10936/2059040 swapFree=4136456/4192956
[pid=32399] ppid=32397 vsize=0 CPUtime=34.67
/proc/32399/stat : 32399 (pbct) R 32397 32399 31740 0 -1 4195332 485988 0 0 0 3239 228 0 0 18 0 1 0 28822836 0 0 1992294400 0 0 0 0 0 0 16384 4096 16387 18446744073709551615 0 0 17 1 0 0 10
/proc/32399/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 34.67
Current children cumulated vsize (KiB) 0

Child ended because it received signal 9 (SIGKILL)
Real time (s): 36.8109
CPU time (s): 34.6877
CPU user time (s): 32.3961
CPU system time (s): 2.29165
CPU usage (%): 94.2323
Max. virtual memory (cumulated for all children) (KiB): 1844352

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 32.3961
system time used= 2.29165
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 485988
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= 3
involuntary context switches= 113

runsolver used 0.067989 second user time and 0.182972 second system time

The end

Launcher Data 

Begin job on node001 at 2010-06-14 18:16:28
IDJOB=2668321
IDBENCH=2336
IDSOLVER=1170
FILE ID=node001/2668321-1276532186
PBS_JOBID= 11173449
Free space on /tmp= 62404 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-dano3_4.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668321-1276532186/watcher-2668321-1276532186 -o /tmp/evaluation-result-2668321-1276532186/solver-2668321-1276532186 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668321-1276532186.opb

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

MD5SUM BENCH= 77442b3482c8e96813b174683c20fffc
RANDOM SEED=1169456697

node001.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		: 3000.202
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	: 6000.40
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		: 3000.202
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1714288 kB
Buffers:        103356 kB
Cached:         161144 kB
SwapCached:       9304 kB
Active:         131180 kB
Inactive:       145644 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1714288 kB
SwapTotal:     4192956 kB
SwapFree:      4136456 kB
Dirty:           34256 kB
Writeback:           0 kB
AnonPages:       10904 kB
Mapped:           9268 kB
Slab:            46228 kB
PageTables:       4004 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180588 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 node001 at 2010-06-14 18:17:05