Trace number 2681446

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 1.84972 1.85038

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
roussel/factor-mod-B/factor-mod-size=6-P0=41-P1=53-P2=59-B.opb
MD5SUM90616edfb9551f327ceab21eaa4edb03
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 benchmark0.139978
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 variables36
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 constraint6
Maximum length of a constraint48
Number of terms in the objective function 6
Biggest coefficient in the objective function 32
Number of bits for the biggest coefficient in the objective function 6
Sum of the numbers in the objective function 63
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 2048
Number of bits of the biggest number in a constraint 12
Biggest sum of numbers in a constraint 8064
Number of bits of the biggest sum of numbers13
Number of products (including duplicates)72
Sum of products size (including duplicates)144
Number of different products72
Sum of products size144

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 77/0 clauses 72/0 units 0
0.00/0.00	c vars 36
0.00/0.00	c objective 6 + 0
0.19/0.25	c 0.231964 5.16797 558 6634
0.19/0.25	o 49
0.19/0.28	c 0.252961 5.16797 594 7195
0.19/0.28	o 39
0.59/0.69	c 0.616906 5.16797 646 17501
0.59/0.69	o 37
0.59/0.69	c 0.618905 5.16797 358 17575
0.59/0.69	o 35
0.59/0.69	c 0.622905 5.16797 247 17698
0.59/0.69	o 33
0.79/0.81	c 0.734888 5.16797 368 21675
0.79/0.81	o 5
0.79/0.83	c 0.747886 5.16797 260 22045
0.79/0.83	o 3
1.79/1.84	c 1.62775 5.16797 294 45866
1.79/1.84	s OPTIMUM FOUND
1.79/1.84	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

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-2681446-1277498263/watcher-2681446-1277498263 -o /tmp/evaluation-result-2681446-1277498263/solver-2681446-1277498263 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681446-1277498263.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 3/105 31250
/proc/meminfo: memFree=1857872/2059040 swapFree=4138820/4192956
[pid=31250] ppid=31248 vsize=3576 CPUtime=0
/proc/31250/stat : 31250 (pbct) R 31248 31250 30641 0 -1 4202496 586 0 0 0 0 0 0 0 25 0 1 0 91119467 3661824 505 1992294400 134512640 136421960 4289283056 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31250/statm: 894 506 193 467 0 425 0

[startup+0.0484529 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 31250
/proc/meminfo: memFree=1857872/2059040 swapFree=4138820/4192956
[pid=31250] ppid=31248 vsize=5160 CPUtime=0.04
/proc/31250/stat : 31250 (pbct) R 31248 31250 30641 0 -1 4202496 1007 0 0 0 4 0 0 0 25 0 1 0 91119467 5283840 926 1992294400 134512640 136421960 4289283056 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31250/statm: 1290 926 214 467 0 821 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5160

[startup+0.101459 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 31250
/proc/meminfo: memFree=1857872/2059040 swapFree=4138820/4192956
[pid=31250] ppid=31248 vsize=5160 CPUtime=0.09
/proc/31250/stat : 31250 (pbct) R 31248 31250 30641 0 -1 4202496 1024 0 0 0 9 0 0 0 25 0 1 0 91119467 5283840 943 1992294400 134512640 136421960 4289283056 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31250/statm: 1290 943 214 467 0 821 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5160

[startup+0.300483 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 31250
/proc/meminfo: memFree=1857872/2059040 swapFree=4138820/4192956
[pid=31250] ppid=31248 vsize=5288 CPUtime=0.29
/proc/31250/stat : 31250 (pbct) R 31248 31250 30641 0 -1 4202496 1063 0 0 0 27 2 0 0 25 0 1 0 91119467 5414912 980 1992294400 134512640 136421960 4289283056 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31250/statm: 1322 980 237 467 0 853 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5288

[startup+0.700533 s]
/proc/loadavg: 1.00 1.00 1.00 3/105 31250
/proc/meminfo: memFree=1857872/2059040 swapFree=4138820/4192956
[pid=31250] ppid=31248 vsize=5288 CPUtime=0.69
/proc/31250/stat : 31250 (pbct) R 31248 31250 30641 0 -1 4202496 1066 0 0 0 62 7 0 0 25 0 1 0 91119467 5414912 980 1992294400 134512640 136421960 4289283056 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31250/statm: 1322 980 237 467 0 853 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 5288

[startup+1.50063 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 31251
/proc/meminfo: memFree=1854888/2059040 swapFree=4138820/4192956
[pid=31250] ppid=31248 vsize=5288 CPUtime=1.49
/proc/31250/stat : 31250 (pbct) R 31248 31250 30641 0 -1 4202496 1068 0 0 0 133 16 0 0 25 0 1 0 91119467 5414912 980 1992294400 134512640 136421960 4289283056 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31250/statm: 1322 980 237 467 0 853 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 5288

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

[startup+1.70066 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 31251
/proc/meminfo: memFree=1854888/2059040 swapFree=4138820/4192956
[pid=31250] ppid=31248 vsize=5288 CPUtime=1.69
/proc/31250/stat : 31250 (pbct) R 31248 31250 30641 0 -1 4202496 1068 0 0 0 150 19 0 0 25 0 1 0 91119467 5414912 980 1992294400 134512640 136421960 4289283056 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31250/statm: 1322 980 237 467 0 853 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 5288

[startup+1.80067 s]
/proc/loadavg: 1.00 1.00 1.00 2/106 31251
/proc/meminfo: memFree=1854888/2059040 swapFree=4138820/4192956
[pid=31250] ppid=31248 vsize=5288 CPUtime=1.79
/proc/31250/stat : 31250 (pbct) R 31248 31250 30641 0 -1 4202496 1068 0 0 0 158 21 0 0 25 0 1 0 91119467 5414912 980 1992294400 134512640 136421960 4289283056 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31250/statm: 1322 980 237 467 0 853 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 5288

Child status: 0
Real time (s): 1.85038
CPU time (s): 1.84972
CPU user time (s): 1.63275
CPU system time (s): 0.216967
CPU usage (%): 99.9642
Max. virtual memory (cumulated for all children) (KiB): 5288

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.63275
system time used= 0.216967
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1073
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= 8

runsolver used 0.002999 second user time and 0.016997 second system time

The end

Launcher Data 

Begin job on node080 at 2010-06-25 22:37:43
IDJOB=2681446
IDBENCH=47935
IDSOLVER=1192
FILE ID=node080/2681446-1277498263
PBS_JOBID= 11190538
Free space on /tmp= 62284 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=6-P0=41-P1=53-P2=59-B.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681446-1277498263/watcher-2681446-1277498263 -o /tmp/evaluation-result-2681446-1277498263/solver-2681446-1277498263 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681446-1277498263.opb

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

MD5SUM BENCH= 90616edfb9551f327ceab21eaa4edb03
RANDOM SEED=587924594

node080.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		: 3000.242
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	: 6000.48
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		: 3000.242
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	: 5999.49
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1858276 kB
Buffers:         15948 kB
Cached:          89980 kB
SwapCached:       6848 kB
Active:          55740 kB
Inactive:        63716 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1858276 kB
SwapTotal:     4192956 kB
SwapFree:      4138820 kB
Dirty:            2016 kB
Writeback:           8 kB
AnonPages:       12248 kB
Mapped:          11824 kB
Slab:            59276 kB
PageTables:       4060 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   183772 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= 62284 MiB
End job on node080 at 2010-06-25 22:37:45