Trace number 2681727

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-12 0.998847 0.999253

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/mis/normalized-mis_50_10_2.opb
MD5SUM8a07cc5cd91ca4bb254ab7dda2eb6992
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-12
Best CPU time to get the best result obtained on this benchmark0.472927
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -12
Optimality of the best value was proved YES
Number of variables50
Total number of constraints50
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 constraints50
Minimum length of a constraint10
Maximum length of a constraint19
Number of terms in the objective function 50
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 50
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 50
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)616
Sum of products size (including duplicates)1232
Number of different products308
Sum of products size616

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 358/0 clauses 308/0 units 0
0.00/0.00	c vars 50
0.00/0.00	c objective 50 + -50
0.09/0.10	c 0.094985 12.0625 0 313
0.09/0.10	o 0
0.09/0.11	c 0.097985 12.3945 0 552
0.09/0.11	o -1
0.09/0.11	c 0.102984 12.3945 0 947
0.09/0.11	o -2
0.09/0.12	c 0.105983 12.3945 0 1142
0.09/0.12	o -3
0.09/0.12	c 0.107983 12.3945 0 1326
0.09/0.12	o -4
0.09/0.12	c 0.110983 12.3945 0 1505
0.09/0.12	o -5
0.09/0.13	c 0.114982 12.3945 7 1711
0.09/0.13	o -6
0.19/0.25	c 0.235964 12.3945 7 2615
0.19/0.25	o -10
0.29/0.30	c 0.285956 12.3945 27 3057
0.29/0.30	o -11
0.29/0.31	c 0.298954 12.3945 68 3170
0.29/0.31	o -12
0.89/0.96	c 0.925859 12.7773 1565 8253
0.89/0.96	s OPTIMUM FOUND
0.89/0.96	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 -x43 x44 x45 -x46 -x47 x48 x49 -x50

Verifier Data 

OK	-12

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2681727-1277502921/watcher-2681727-1277502921 -o /tmp/evaluation-result-2681727-1277502921/solver-2681727-1277502921 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2681727-1277502921.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: 1.21 1.13 1.03 3/105 31140
/proc/meminfo: memFree=1872516/2059040 swapFree=4139180/4192956
[pid=31140] ppid=31138 vsize=3312 CPUtime=0
/proc/31140/stat : 31140 (pbct) R 31138 31140 30372 0 -1 4202496 522 0 0 0 0 0 0 0 25 0 1 0 91585917 3391488 442 1992294400 134512640 136421960 4287771648 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31140/statm: 828 444 190 467 0 359 0

[startup+0.0862989 s]
/proc/loadavg: 1.21 1.13 1.03 3/105 31140
/proc/meminfo: memFree=1872516/2059040 swapFree=4139180/4192956
[pid=31140] ppid=31138 vsize=11372 CPUtime=0.08
/proc/31140/stat : 31140 (pbct) R 31138 31140 30372 0 -1 4202496 2499 0 0 0 7 1 0 0 25 0 1 0 91585917 11644928 2419 1992294400 134512640 136421960 4287771648 18446744073709551615 135818295 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31140/statm: 2843 2419 204 467 0 2374 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 11372

[startup+0.101301 s]
/proc/loadavg: 1.21 1.13 1.03 3/105 31140
/proc/meminfo: memFree=1872516/2059040 swapFree=4139180/4192956
[pid=31140] ppid=31138 vsize=11504 CPUtime=0.09
/proc/31140/stat : 31140 (pbct) R 31138 31140 30372 0 -1 4202496 2552 0 0 0 8 1 0 0 25 0 1 0 91585917 11780096 2472 1992294400 134512640 136421960 4287771648 18446744073709551615 135829973 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31140/statm: 2876 2472 204 467 0 2407 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11504

[startup+0.301324 s]
/proc/loadavg: 1.21 1.13 1.03 3/105 31140
/proc/meminfo: memFree=1872516/2059040 swapFree=4139180/4192956
[pid=31140] ppid=31138 vsize=12688 CPUtime=0.29
/proc/31140/stat : 31140 (pbct) R 31138 31140 30372 0 -1 4202496 2852 0 0 0 28 1 0 0 25 0 1 0 91585917 12992512 2764 1992294400 134512640 136421960 4287771648 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31140/statm: 3172 2764 237 467 0 2703 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 12688

[startup+0.701369 s]
/proc/loadavg: 1.21 1.13 1.03 3/105 31140
/proc/meminfo: memFree=1872516/2059040 swapFree=4139180/4192956
[pid=31140] ppid=31138 vsize=13080 CPUtime=0.69
/proc/31140/stat : 31140 (pbct) R 31138 31140 30372 0 -1 4202496 2934 0 0 0 67 2 0 0 25 0 1 0 91585917 13393920 2844 1992294400 134512640 136421960 4287771648 18446744073709551615 134862003 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31140/statm: 3270 2844 237 467 0 2801 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 13080

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

[startup+0.901391 s]
/proc/loadavg: 1.21 1.13 1.03 3/105 31140
/proc/meminfo: memFree=1872516/2059040 swapFree=4139180/4192956
[pid=31140] ppid=31138 vsize=13080 CPUtime=0.89
/proc/31140/stat : 31140 (pbct) R 31138 31140 30372 0 -1 4202496 2949 0 0 0 86 3 0 0 25 0 1 0 91585917 13393920 2859 1992294400 134512640 136421960 4287771648 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/31140/statm: 3270 2859 237 467 0 2801 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 13080

Child status: 0
Real time (s): 0.999253
CPU time (s): 0.998847
CPU user time (s): 0.960853
CPU system time (s): 0.037994
CPU usage (%): 99.9594
Max. virtual memory (cumulated for all children) (KiB): 13080

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.960853
system time used= 0.037994
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2954
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= 2

runsolver used 0.007998 second user time and 0.013997 second system time

The end

Launcher Data 

Begin job on node085 at 2010-06-25 23:55:21
IDJOB=2681727
IDBENCH=48216
IDSOLVER=1192
FILE ID=node085/2681727-1277502921
PBS_JOBID= 11190544
Free space on /tmp= 121676 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/mis/normalized-mis_50_10_2.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2681727-1277502921/watcher-2681727-1277502921 -o /tmp/evaluation-result-2681727-1277502921/solver-2681727-1277502921 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2681727-1277502921.opb

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

MD5SUM BENCH= 8a07cc5cd91ca4bb254ab7dda2eb6992
RANDOM SEED=1481732562

node085.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		: 3000.221
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	: 6000.44
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		: 3000.221
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	: 5999.51
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1872796 kB
Buffers:         16888 kB
Cached:          86584 kB
SwapCached:       6312 kB
Active:          65492 kB
Inactive:        50768 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1872796 kB
SwapTotal:     4192956 kB
SwapFree:      4139180 kB
Dirty:            1880 kB
Writeback:           0 kB
AnonPages:       11272 kB
Mapped:          11912 kB
Slab:            48052 kB
PageTables:       4124 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181368 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= 121672 MiB
End job on node085 at 2010-06-25 23:55:22