Trace number 2681279

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 fixedOPT-75 5.76412 5.76447

General information on the benchmark

Name/OPT-SMALLINT-LIN/featureSubscription/
normalized-50-750-false-45-90-4-10000opt.opb
MD5SUM3c1368de4464ff81756c1b99158c803c
Bench CategoryOPT-SMALLINT-LIN (optimisation, small integers, linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-75
Best CPU time to get the best result obtained on this benchmark5.76412
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables2025
Total number of constraints29711
Number of constraints which are clauses29711
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint2
Maximum length of a constraint3
Number of terms in the objective function 135
Biggest coefficient in the objective function 4
Number of bits for the biggest coefficient in the objective function 3
Sum of the numbers in the objective function 356
Number of bits of the sum of numbers in the objective function 9
Biggest number in a constraint 4
Number of bits of the biggest number in a constraint 3
Biggest sum of numbers in a constraint 356
Number of bits of the biggest sum of numbers9
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

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
0.29/0.34	c constraints 0/0 clauses 29711/0 units 0
0.29/0.34	c vars 2025
0.29/0.34	c objective 135 + -356
0.79/0.85	c 0.791879 57.8633 0 3477
0.79/0.85	o -10
0.79/0.86	c 0.796878 58.6211 1 5424
0.79/0.86	o -13
0.79/0.87	c 0.803877 58.6211 18 7419
0.79/0.87	o -16
0.79/0.87	c 0.805877 58.6211 19 9152
0.79/0.87	o -17
0.79/0.88	c 0.810876 58.6211 36 11064
0.79/0.88	o -31
0.89/0.90	c 0.828873 58.6211 204 13533
0.89/0.90	o -36
0.89/0.92	c 0.837872 58.6211 248 15241
0.89/0.92	o -37
0.89/0.93	c 0.844871 58.6211 295 17064
0.89/0.93	o -38
0.89/0.94	c 0.85287 58.6211 354 18776
0.89/0.94	o -39
0.89/0.94	c 0.858869 58.6211 371 20278
0.89/0.94	o -58
0.89/0.95	c 0.865868 58.6211 412 21895
0.89/0.95	o -59
0.99/1.03	c 0.934857 58.6211 1123 24508
0.99/1.03	o -65
0.99/1.04	c 0.939857 58.6211 1127 25987
0.99/1.04	o -67
0.99/1.04	c 0.943856 58.6211 1127 27381
0.99/1.04	o -71
1.10/1.14	c 1.03384 58.6211 1980 29830
1.10/1.14	o -72
1.10/1.16	c 1.05084 58.75 2092 31290
1.10/1.16	o -75
5.49/5.51	c 5.2652 61.3359 1376 55703
5.49/5.51	s OPTIMUM FOUND
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Verifier Data 

OK	-75

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2681279-1277506411/watcher-2681279-1277506411 -o /tmp/evaluation-result-2681279-1277506411/solver-2681279-1277506411 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681279-1277506411.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: 0.85 0.97 0.99 3/106 23127
/proc/meminfo: memFree=1834672/2059040 swapFree=4140248/4192956
[pid=23127] ppid=23125 vsize=2136 CPUtime=0
/proc/23127/stat : 23127 (pbct) R 23125 23127 23102 0 -1 4202496 250 0 0 0 0 0 0 0 23 0 1 0 126245017 2187264 169 1992294400 134512640 136421960 4292640960 18446744073709551615 135811817 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23127/statm: 534 169 145 467 0 65 0

[startup+0.0237111 s]
/proc/loadavg: 0.85 0.97 0.99 3/106 23127
/proc/meminfo: memFree=1834672/2059040 swapFree=4140248/4192956
[pid=23127] ppid=23125 vsize=2136 CPUtime=0.02
/proc/23127/stat : 23127 (pbct) R 23125 23127 23102 0 -1 4202496 265 0 0 0 2 0 0 0 23 0 1 0 126245017 2187264 184 1992294400 134512640 136421960 4292640960 18446744073709551615 134518930 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23127/statm: 534 184 145 467 0 65 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2136

[startup+0.100719 s]
/proc/loadavg: 0.85 0.97 0.99 3/106 23127
/proc/meminfo: memFree=1834672/2059040 swapFree=4140248/4192956
[pid=23127] ppid=23125 vsize=2400 CPUtime=0.09
/proc/23127/stat : 23127 (pbct) R 23125 23127 23102 0 -1 4202496 325 0 0 0 9 0 0 0 23 0 1 0 126245017 2457600 244 1992294400 134512640 136421960 4292640960 18446744073709551615 135372664 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23127/statm: 600 244 145 467 0 131 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2400

[startup+0.300737 s]
/proc/loadavg: 0.85 0.97 0.99 3/106 23127
/proc/meminfo: memFree=1834672/2059040 swapFree=4140248/4192956
[pid=23127] ppid=23125 vsize=3060 CPUtime=0.29
/proc/23127/stat : 23127 (pbct) R 23125 23127 23102 0 -1 4202496 473 0 0 0 29 0 0 0 24 0 1 0 126245017 3133440 392 1992294400 134512640 136421960 4292640960 18446744073709551615 135378032 0 0 4096 0 0 0 0 17 1 0 0 0
/proc/23127/statm: 765 392 145 467 0 296 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3060

[startup+0.700775 s]
/proc/loadavg: 0.85 0.97 0.99 3/106 23127
/proc/meminfo: memFree=1834672/2059040 swapFree=4140248/4192956
[pid=23127] ppid=23125 vsize=54740 CPUtime=0.69
/proc/23127/stat : 23127 (pbct) R 23125 23127 23102 0 -1 4202496 14051 0 0 0 63 6 0 0 25 0 1 0 126245017 56053760 13211 1992294400 134512640 136421960 4292640960 18446744073709551615 134700917 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23127/statm: 13685 13211 195 467 0 13216 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 54740

[startup+1.50085 s]
/proc/loadavg: 0.85 0.97 0.99 2/107 23128
/proc/meminfo: memFree=1778492/2059040 swapFree=4140248/4192956
[pid=23127] ppid=23125 vsize=60824 CPUtime=1.49
/proc/23127/stat : 23127 (pbct) R 23125 23127 23102 0 -1 4202496 15611 0 0 0 137 12 0 0 25 0 1 0 126245017 62283776 14438 1992294400 134512640 136421960 4292640960 18446744073709551615 134861902 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23127/statm: 15206 14438 236 467 0 14737 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 60824

[startup+3.101 s]
/proc/loadavg: 0.86 0.97 0.99 2/107 23128
/proc/meminfo: memFree=1776632/2059040 swapFree=4140248/4192956
[pid=23127] ppid=23125 vsize=62540 CPUtime=3.09
/proc/23127/stat : 23127 (pbct) R 23125 23127 23102 0 -1 4202496 16067 0 0 0 292 17 0 0 25 0 1 0 126245017 64040960 14894 1992294400 134512640 136421960 4292640960 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23127/statm: 15635 14894 236 467 0 15166 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 62540

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

[startup+4.70116 s]
/proc/loadavg: 0.86 0.97 0.99 2/107 23128
/proc/meminfo: memFree=1775640/2059040 swapFree=4140248/4192956
[pid=23127] ppid=23125 vsize=62804 CPUtime=4.69
/proc/23127/stat : 23127 (pbct) R 23125 23127 23102 0 -1 4202496 16126 0 0 0 448 21 0 0 25 0 1 0 126245017 64311296 14953 1992294400 134512640 136421960 4292640960 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23127/statm: 15701 14953 236 467 0 15232 0
Current children cumulated CPU time (s) 4.69
Current children cumulated vsize (KiB) 62804

[startup+5.50923 s]
/proc/loadavg: 0.86 0.97 0.99 2/107 23128
/proc/meminfo: memFree=1775392/2059040 swapFree=4140248/4192956
[pid=23127] ppid=23125 vsize=62804 CPUtime=5.49
/proc/23127/stat : 23127 (pbct) R 23125 23127 23102 0 -1 4202496 16131 0 0 0 525 24 0 0 25 0 1 0 126245017 64311296 14958 1992294400 134512640 136421960 4292640960 18446744073709551615 135805416 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23127/statm: 15701 14958 236 467 0 15232 0
Current children cumulated CPU time (s) 5.49
Current children cumulated vsize (KiB) 62804

[startup+5.70125 s]
/proc/loadavg: 0.86 0.97 0.99 2/107 23128
/proc/meminfo: memFree=1775392/2059040 swapFree=4140248/4192956
[pid=23127] ppid=23125 vsize=56308 CPUtime=5.69
/proc/23127/stat : 23127 (pbct) R 23125 23127 23102 0 -1 4202496 16135 0 0 0 545 24 0 0 25 0 1 0 126245017 57659392 13423 1992294400 134512640 136421960 4292640960 18446744073709551615 135801367 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23127/statm: 14077 13423 239 467 0 13608 0
Current children cumulated CPU time (s) 5.69
Current children cumulated vsize (KiB) 56308

Child status: 0
Real time (s): 5.76447
CPU time (s): 5.76412
CPU user time (s): 5.50716
CPU system time (s): 0.25696
CPU usage (%): 99.994
Max. virtual memory (cumulated for all children) (KiB): 62804

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 5.50716
system time used= 0.25696
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16136
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= 76

runsolver used 0.011998 second user time and 0.037994 second system time

The end

Launcher Data 

Begin job on node004 at 2010-06-26 00:53:31
IDJOB=2681279
IDBENCH=71839
IDSOLVER=1192
FILE ID=node004/2681279-1277506411
PBS_JOBID= 11190639
Free space on /tmp= 62336 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB09/normalized-PB09/OPT-SMALLINT-LIN/featureSubscription/normalized-50-750-false-45-90-4-10000opt.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681279-1277506411/watcher-2681279-1277506411 -o /tmp/evaluation-result-2681279-1277506411/solver-2681279-1277506411 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681279-1277506411.opb

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

MD5SUM BENCH= 3c1368de4464ff81756c1b99158c803c
RANDOM SEED=150173218

node004.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		: 3000.210
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	: 6000.42
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		: 3000.210
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:       1835200 kB
Buffers:         44040 kB
Cached:          84448 kB
SwapCached:       5576 kB
Active:          59740 kB
Inactive:        82032 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1835200 kB
SwapTotal:     4192956 kB
SwapFree:      4140248 kB
Dirty:            2976 kB
Writeback:           0 kB
AnonPages:       11924 kB
Mapped:          11972 kB
Slab:            60100 kB
PageTables:       4216 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182340 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= 62332 MiB
End job on node004 at 2010-06-26 00:53:37