Trace number 2681501

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 fixedOPT3 25.5971 25.6036

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=7-P0=17-P1=53-P2=109-B.opb
MD5SUM2eab9a3df979d0268940cd1121c39af7
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.279957
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables42
Total number of constraints5
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints5
Minimum length of a constraint7
Maximum length of a constraint63
Number of terms in the objective function 7
Biggest coefficient in the objective function 64
Number of bits for the biggest coefficient in the objective function 7
Sum of the numbers in the objective function 127
Number of bits of the sum of numbers in the objective function 7
Biggest number in a constraint 8192
Number of bits of the biggest number in a constraint 14
Biggest sum of numbers in a constraint 32512
Number of bits of the biggest sum of numbers15
Number of products (including duplicates)98
Sum of products size (including duplicates)196
Number of different products98
Sum of products size196

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
0.00/0.00	c constraints 103/0 clauses 98/0 units 0
0.00/0.00	c vars 42
0.00/0.00	c objective 7 + 0
0.39/0.42	c 0.376942 5.96094 1351 9552
0.39/0.42	o 97
0.49/0.54	c 0.485926 6.125 437 12197
0.49/0.54	o 43
0.89/0.97	c 0.861868 6.125 491 22116
0.89/0.97	o 13
0.99/1.00	c 0.897863 6.125 500 22888
0.99/1.00	o 11
1.49/1.58	c 1.40579 6.125 399 36098
1.49/1.58	o 5
1.69/1.70	c 1.50577 6.125 594 38567
1.69/1.70	o 3
25.48/25.59	c 22.4286 6.125 686 547749
25.48/25.59	s OPTIMUM FOUND
25.48/25.59	v x1 x2 -x3 -x4 -x5 -x6 -x7 x8 x9 -x10 x11 -x12 x13 -x14 x15 -x16 -x17 -x18 -x19 x20 -x21 x22 -x23 -x24 -x25 -x26 -x27 -x28 x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42

Verifier Data 

OK	3

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2681501-1277498954/watcher-2681501-1277498954 -o /tmp/evaluation-result-2681501-1277498954/solver-2681501-1277498954 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681501-1277498954.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: 1.00 1.00 1.00 3/106 28051
/proc/meminfo: memFree=1844112/2059040 swapFree=4139628/4192956
[pid=28051] ppid=28049 vsize=3444 CPUtime=0
/proc/28051/stat : 28051 (pbct) R 28049 28051 27538 0 -1 4202496 570 0 0 0 0 0 0 0 20 0 1 0 91186259 3526656 489 1992294400 134512640 136421960 4286727488 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28051/statm: 861 490 193 467 0 392 0

[startup+0.0915731 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 28051
/proc/meminfo: memFree=1844112/2059040 swapFree=4139628/4192956
[pid=28051] ppid=28049 vsize=5972 CPUtime=0.09
/proc/28051/stat : 28051 (pbct) R 28049 28051 27538 0 -1 4202496 1210 0 0 0 8 1 0 0 20 0 1 0 91186259 6115328 1129 1992294400 134512640 136421960 4286727488 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28051/statm: 1493 1129 214 467 0 1024 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5972

[startup+0.100573 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 28051
/proc/meminfo: memFree=1844112/2059040 swapFree=4139628/4192956
[pid=28051] ppid=28049 vsize=5972 CPUtime=0.09
/proc/28051/stat : 28051 (pbct) R 28049 28051 27538 0 -1 4202496 1221 0 0 0 8 1 0 0 20 0 1 0 91186259 6115328 1140 1992294400 134512640 136421960 4286727488 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28051/statm: 1493 1140 214 467 0 1024 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5972

[startup+0.30059 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 28051
/proc/meminfo: memFree=1844112/2059040 swapFree=4139628/4192956
[pid=28051] ppid=28049 vsize=6100 CPUtime=0.29
/proc/28051/stat : 28051 (pbct) R 28049 28051 27538 0 -1 4202496 1243 0 0 0 26 3 0 0 20 0 1 0 91186259 6246400 1162 1992294400 134512640 136421960 4286727488 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28051/statm: 1525 1162 214 467 0 1056 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6100

[startup+0.700625 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 28051
/proc/meminfo: memFree=1844112/2059040 swapFree=4139628/4192956
[pid=28051] ppid=28049 vsize=6268 CPUtime=0.69
/proc/28051/stat : 28051 (pbct) R 28049 28051 27538 0 -1 4202496 1293 0 0 0 62 7 0 0 20 0 1 0 91186259 6418432 1210 1992294400 134512640 136421960 4286727488 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28051/statm: 1567 1210 237 467 0 1098 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6268

[startup+1.50069 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 28052
/proc/meminfo: memFree=1840012/2059040 swapFree=4139628/4192956
[pid=28051] ppid=28049 vsize=6268 CPUtime=1.49
/proc/28051/stat : 28051 (pbct) R 28049 28051 27538 0 -1 4202496 1295 0 0 0 132 17 0 0 22 0 1 0 91186259 6418432 1210 1992294400 134512640 136421960 4286727488 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28051/statm: 1567 1210 237 467 0 1098 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6268

[startup+3.10083 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 28052
/proc/meminfo: memFree=1839764/2059040 swapFree=4139628/4192956
[pid=28051] ppid=28049 vsize=6268 CPUtime=3.09
/proc/28051/stat : 28051 (pbct) R 28049 28051 27538 0 -1 4202496 1297 0 0 0 273 36 0 0 25 0 1 0 91186259 6418432 1210 1992294400 134512640 136421960 4286727488 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28051/statm: 1567 1210 237 467 0 1098 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6268

[startup+6.30111 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 28052
/proc/meminfo: memFree=1839640/2059040 swapFree=4139628/4192956
[pid=28051] ppid=28049 vsize=6268 CPUtime=6.29
/proc/28051/stat : 28051 (pbct) R 28049 28051 27538 0 -1 4202496 1297 0 0 0 552 77 0 0 25 0 1 0 91186259 6418432 1210 1992294400 134512640 136421960 4286727488 18446744073709551615 134857179 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28051/statm: 1567 1210 237 467 0 1098 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 6268

[startup+12.7017 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 28052
/proc/meminfo: memFree=1839516/2059040 swapFree=4139628/4192956
[pid=28051] ppid=28049 vsize=6268 CPUtime=12.69
/proc/28051/stat : 28051 (pbct) R 28049 28051 27538 0 -1 4202496 1302 0 0 0 1115 154 0 0 25 0 1 0 91186259 6418432 1215 1992294400 134512640 136421960 4286727488 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28051/statm: 1567 1215 237 467 0 1098 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 6268

[startup+25.5008 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 28052
/proc/meminfo: memFree=1839516/2059040 swapFree=4139628/4192956
[pid=28051] ppid=28049 vsize=6268 CPUtime=25.48
/proc/28051/stat : 28051 (pbct) R 28049 28051 27538 0 -1 4202496 1316 0 0 0 2234 314 0 0 25 0 1 0 91186259 6418432 1229 1992294400 134512640 136421960 4286727488 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28051/statm: 1567 1229 237 467 0 1098 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 6268

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

[startup+25.6008 s]
/proc/loadavg: 1.00 1.00 1.00 2/107 28052
/proc/meminfo: memFree=1839516/2059040 swapFree=4139628/4192956
[pid=28051] ppid=28049 vsize=5488 CPUtime=25.59
/proc/28051/stat : 28051 (pbct) R 28049 28051 27538 0 -1 4202496 1320 0 0 0 2243 316 0 0 25 0 1 0 91186259 5619712 1096 1992294400 134512640 136421960 4286727488 18446744073709551615 134701435 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28051/statm: 1372 1096 240 467 0 903 0
Current children cumulated CPU time (s) 25.59
Current children cumulated vsize (KiB) 5488

Child status: 0
Real time (s): 25.6036
CPU time (s): 25.5971
CPU user time (s): 22.4356
CPU system time (s): 3.16152
CPU usage (%): 99.9746
Max. virtual memory (cumulated for all children) (KiB): 6268

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.4356
system time used= 3.16152
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1321
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= 60

runsolver used 0.031995 second user time and 0.140978 second system time

The end

Launcher Data 

Begin job on node057 at 2010-06-25 22:49:14
IDJOB=2681501
IDBENCH=47990
IDSOLVER=1192
FILE ID=node057/2681501-1277498954
PBS_JOBID= 11190543
Free space on /tmp= 62392 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=7-P0=17-P1=53-P2=109-B.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681501-1277498954/watcher-2681501-1277498954 -o /tmp/evaluation-result-2681501-1277498954/solver-2681501-1277498954 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681501-1277498954.opb

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

MD5SUM BENCH= 2eab9a3df979d0268940cd1121c39af7
RANDOM SEED=148551339

node057.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		: 3000.247
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		: 3000.247
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	: 5599.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1844516 kB
Buffers:         23628 kB
Cached:          95212 kB
SwapCached:       6172 kB
Active:          69060 kB
Inactive:        62744 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1844516 kB
SwapTotal:     4192956 kB
SwapFree:      4139628 kB
Dirty:            1872 kB
Writeback:           0 kB
AnonPages:       11532 kB
Mapped:          11872 kB
Slab:            60792 kB
PageTables:       4188 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181440 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= 62392 MiB
End job on node057 at 2010-06-25 22:49:40