Trace number 2668315

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 0.1UNSAT 17.7283 17.7328

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/plato.asu.edu/
pub/milp/normalized-mps-v2-20-10-neos3.opb
MD5SUMd20c34d69465e41d60c8740ade812dbe
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
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables42220
Total number of constraints1481
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)17
Number of constraints which are nor clauses,nor cardinality constraints1464
Minimum length of a constraint10
Maximum length of a constraint4780
Number of terms in the objective function 155
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 10737418235
Number of bits of the sum of numbers in the objective function 34
Biggest number in a constraint 2454208150643933184000
Number of bits of the biggest number in a constraint 72
Biggest sum of numbers in a constraint 289272765430218968121839
Number of bits of the biggest sum of numbers78
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
3.09/3.20	c constraints 1481/0 clauses 0/0 units 24396
3.09/3.20	c vars 42220
3.09/3.20	c objective 155 + 0
14.19/14.30	c 13.5489 678.738 0 0
17.59/17.67	s UNSATISFIABLE

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-2668315-1276529498/watcher-2668315-1276529498 -o /tmp/evaluation-result-2668315-1276529498/solver-2668315-1276529498 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668315-1276529498.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: 0.86 1.00 0.99 3/106 30849
/proc/meminfo: memFree=1882200/2059040 swapFree=4140228/4192956
[pid=30849] ppid=30847 vsize=2348 CPUtime=0
/proc/30849/stat : 30849 (pbct) R 30847 30849 30824 0 -1 4202496 297 0 0 0 0 0 0 0 20 0 1 0 26606180 2404352 220 1992294400 134512640 136485738 4291659664 18446744073709551615 135332318 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30849/statm: 587 220 157 482 0 103 0

[startup+0.046374 s]
/proc/loadavg: 0.86 1.00 0.99 3/106 30849
/proc/meminfo: memFree=1882200/2059040 swapFree=4140228/4192956
[pid=30849] ppid=30847 vsize=3048 CPUtime=0.04
/proc/30849/stat : 30849 (pbct) R 30847 30849 30824 0 -1 4202496 443 0 0 0 4 0 0 0 20 0 1 0 26606180 3121152 366 1992294400 134512640 136485738 4291659664 18446744073709551615 135178844 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30849/statm: 762 366 157 482 0 278 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 3048

[startup+0.101378 s]
/proc/loadavg: 0.86 1.00 0.99 3/106 30849
/proc/meminfo: memFree=1882200/2059040 swapFree=4140228/4192956
[pid=30849] ppid=30847 vsize=4032 CPUtime=0.09
/proc/30849/stat : 30849 (pbct) R 30847 30849 30824 0 -1 4202496 615 0 0 0 9 0 0 0 20 0 1 0 26606180 4128768 538 1992294400 134512640 136485738 4291659664 18446744073709551615 135857125 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30849/statm: 1008 538 157 482 0 524 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4032

[startup+0.301397 s]
/proc/loadavg: 0.86 1.00 0.99 3/106 30849
/proc/meminfo: memFree=1882200/2059040 swapFree=4140228/4192956
[pid=30849] ppid=30847 vsize=4032 CPUtime=0.29
/proc/30849/stat : 30849 (pbct) R 30847 30849 30824 0 -1 4202496 615 0 0 0 29 0 0 0 20 0 1 0 26606180 4128768 538 1992294400 134512640 136485738 4291659664 18446744073709551615 135857024 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30849/statm: 1008 538 157 482 0 524 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4032

[startup+0.701435 s]
/proc/loadavg: 0.86 1.00 0.99 3/106 30849
/proc/meminfo: memFree=1882200/2059040 swapFree=4140228/4192956
[pid=30849] ppid=30847 vsize=4032 CPUtime=0.69
/proc/30849/stat : 30849 (pbct) R 30847 30849 30824 0 -1 4202496 615 0 0 0 69 0 0 0 21 0 1 0 26606180 4128768 538 1992294400 134512640 136485738 4291659664 18446744073709551615 135857078 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30849/statm: 1008 538 157 482 0 524 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4032

[startup+1.50151 s]
/proc/loadavg: 0.86 1.00 0.99 2/107 30850
/proc/meminfo: memFree=1880580/2059040 swapFree=4140228/4192956
[pid=30849] ppid=30847 vsize=4032 CPUtime=1.49
/proc/30849/stat : 30849 (pbct) R 30847 30849 30824 0 -1 4202496 615 0 0 0 149 0 0 0 23 0 1 0 26606180 4128768 538 1992294400 134512640 136485738 4291659664 18446744073709551615 135843969 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30849/statm: 1008 538 157 482 0 524 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4032

[startup+3.10166 s]
/proc/loadavg: 0.86 1.00 0.99 2/107 30850
/proc/meminfo: memFree=1880332/2059040 swapFree=4140228/4192956
[pid=30849] ppid=30847 vsize=13904 CPUtime=3.09
/proc/30849/stat : 30849 (pbct) R 30847 30849 30824 0 -1 4202496 2741 0 0 0 309 0 0 0 25 0 1 0 26606180 14237696 2664 1992294400 134512640 136485738 4291659664 18446744073709551615 135416633 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/30849/statm: 3476 2664 157 482 0 2992 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 13904

[startup+6.30097 s]
/proc/loadavg: 0.87 1.00 0.99 2/107 30850
/proc/meminfo: memFree=1696812/2059040 swapFree=4140228/4192956
[pid=30849] ppid=30847 vsize=240204 CPUtime=6.29
/proc/30849/stat : 30849 (pbct) R 30847 30849 30824 0 -1 4202496 61775 0 0 0 600 29 0 0 25 0 1 0 26606180 245968896 58995 1992294400 134512640 136485738 4291659664 18446744073709551615 134651003 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30849/statm: 60051 58995 197 482 0 59567 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 240204

[startup+12.7006 s]
/proc/loadavg: 0.88 1.00 0.99 2/107 30850
/proc/meminfo: memFree=1269508/2059040 swapFree=4140228/4192956
[pid=30849] ppid=30847 vsize=652560 CPUtime=12.69
/proc/30849/stat : 30849 (pbct) R 30847 30849 30824 0 -1 4202496 170827 0 0 0 1198 71 0 0 25 0 1 0 26606180 668221440 155808 1992294400 134512640 136485738 4291659664 18446744073709551615 134616338 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30849/statm: 163140 155809 210 482 0 162656 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 652560

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

[startup+15.9009 s]
/proc/loadavg: 0.89 1.00 0.99 2/107 30850
/proc/meminfo: memFree=1262440/2059040 swapFree=4140228/4192956
[pid=30849] ppid=30847 vsize=634408 CPUtime=15.89
/proc/30849/stat : 30849 (pbct) R 30847 30849 30824 0 -1 4202496 182027 0 0 0 1514 75 0 0 25 0 1 0 26606180 649633792 154032 1992294400 134512640 136485738 4291659664 18446744073709551615 135856849 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30849/statm: 158602 154032 248 482 0 158118 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 634408

[startup+16.701 s]
/proc/loadavg: 0.89 1.00 0.99 2/107 30850
/proc/meminfo: memFree=1289100/2059040 swapFree=4140228/4192956
[pid=30849] ppid=30847 vsize=593432 CPUtime=16.68
/proc/30849/stat : 30849 (pbct) R 30847 30849 30824 0 -1 4202496 182027 0 0 0 1593 75 0 0 25 0 1 0 26606180 607674368 147980 1992294400 134512640 136485738 4291659664 18446744073709551615 135839787 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30849/statm: 148358 147980 248 482 0 147874 0
Current children cumulated CPU time (s) 16.68
Current children cumulated vsize (KiB) 593432

[startup+17.501 s]
/proc/loadavg: 0.89 1.00 0.99 2/107 30850
/proc/meminfo: memFree=1289100/2059040 swapFree=4140228/4192956
[pid=30849] ppid=30847 vsize=593432 CPUtime=17.49
/proc/30849/stat : 30849 (pbct) R 30847 30849 30824 0 -1 4202496 182027 0 0 0 1674 75 0 0 25 0 1 0 26606180 607674368 147980 1992294400 134512640 136485738 4291659664 18446744073709551615 135839796 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/30849/statm: 148358 147980 248 482 0 147874 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 593432

[startup+17.7012 s]
/proc/loadavg: 0.89 1.00 0.99 2/107 30850
/proc/meminfo: memFree=1289100/2059040 swapFree=4140228/4192956
[pid=30849] ppid=30847 vsize=0 CPUtime=17.69
/proc/30849/stat : 30849 (pbct) R 30847 30849 30824 0 -1 4202500 182028 0 0 0 1691 78 0 0 25 0 1 0 26606180 0 0 1992294400 0 0 0 0 0 0 0 4096 16387 18446744073709551615 0 0 17 1 0 0 0
/proc/30849/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 17.69
Current children cumulated vsize (KiB) 0

Child status: 0
Real time (s): 17.7328
CPU time (s): 17.7283
CPU user time (s): 16.9104
CPU system time (s): 0.817875
CPU usage (%): 99.9747
Max. virtual memory (cumulated for all children) (KiB): 695024

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.9104
system time used= 0.817875
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 182028
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= 242

runsolver used 0.034994 second user time and 0.088986 second system time

The end

Launcher Data 

Begin job on node018 at 2010-06-14 17:31:38
IDJOB=2668315
IDBENCH=2325
IDSOLVER=1170
FILE ID=node018/2668315-1276529498
PBS_JOBID= 11173457
Free space on /tmp= 62364 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-neos3.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668315-1276529498/watcher-2668315-1276529498 -o /tmp/evaluation-result-2668315-1276529498/solver-2668315-1276529498 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668315-1276529498.opb

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

MD5SUM BENCH= d20c34d69465e41d60c8740ade812dbe
RANDOM SEED=1965035980

node018.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		: 3000.248
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	: 6000.49
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		: 3000.248
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	: 5599.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1882720 kB
Buffers:          6920 kB
Cached:          82948 kB
SwapCached:       5636 kB
Active:          30636 kB
Inactive:        71312 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1882720 kB
SwapTotal:     4192956 kB
SwapFree:      4140228 kB
Dirty:            5068 kB
Writeback:           0 kB
AnonPages:       10744 kB
Mapped:          12824 kB
Slab:            52528 kB
PageTables:       4088 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180620 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= 62364 MiB
End job on node018 at 2010-06-14 17:31:56