Trace number 34914

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, and are wall clock time (not CPU 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
minisat+ 1.14UNSAT 20.3599 20.3701

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/plato.asu.edu/
pub/fctp/normalized-reduced-mps-v2-20-10-gr4x6.opb
MD5SUM575b26c97ae90d0a5ad0f53e9f10755e
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark0.014996
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables744
Total number of constraints34
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 constraints34
Minimum length of a constraint31
Maximum length of a constraint180
Number of terms in the objective function 744
Biggest coefficient in the objective function 22954
Number of bits for the biggest coefficient in the objective function 15
Sum of the numbers in the objective function 524814
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262143
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 524814
Number of bits of the biggest sum of numbers20
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00	c Parsing PB file...
0.03	c Converting 44 PB-constraints to clauses...
0.03	c   -- Unit propagations: (none)
0.03	c   -- Detecting intervals from adjacent constraints: ##########
0.03	c   -- Clauses(.)/Splits(s): (none)
0.03	c ---[  42]---> Adder-cost: 166   maxlim: 89   bits: 7/7
0.04	c ---[  40]---> BDD-cost:  334
0.05	c ---[  38]---> BDD-cost:  249
0.05	c ---[  36]---> BDD-cost:  249
0.06	c ---[  34]---> Adder-cost: 110   maxlim: 67   bits: 7/7
0.06	c ---[  32]---> Adder-cost: 118   maxlim: 60   bits: 7/6
0.07	c ---[  30]---> Adder-cost: 118   maxlim: 60   bits: 7/6
0.07	c ---[  28]---> BDD-cost:  171
0.07	c ---[  26]---> BDD-cost:  101
0.08	c ---[  24]---> BDD-cost:  101
0.08	c ---[  23]---> Sorter-cost:  197     Base: 2 2 2
0.08	c ---[  22]---> Sorter-cost:  240     Base: 7
0.08	c ---[  21]---> BDD-cost:   43
0.08	c ---[  20]---> BDD-cost:   43
0.08	c ---[  19]---> Sorter-cost:  262     Base: 2
0.08	c ---[  18]---> Sorter-cost:  264     Base: 2
0.08	c ---[  17]---> Sorter-cost:  264     Base: 2
0.08	c ---[  16]---> Sorter-cost:  232     Base: 7
0.08	c ---[  15]---> BDD-cost:   43
0.08	c ---[  14]---> BDD-cost:   43
0.08	c ---[  13]---> Sorter-cost:  230     Base: 7
0.08	c ---[  12]---> Sorter-cost:  232     Base: 7
0.08	c ---[  11]---> Sorter-cost:  292     Base: 3
0.09	c ---[  10]---> Sorter-cost:  232     Base: 7
0.09	c ---[   9]---> Sorter-cost:  232     Base: 7
0.09	c ---[   8]---> BDD-cost:   43
0.09	c ---[   7]---> BDD-cost:   43
0.09	c ---[   6]---> Sorter-cost:  230     Base: 7
0.09	c ---[   5]---> BDD-cost:   31
0.09	c ---[   4]---> BDD-cost:   31
0.09	c ---[   3]---> Sorter-cost:  195     Base: 2 2 2
0.09	c ---[   2]---> Sorter-cost:  240     Base: 7
0.09	c ---[   1]---> Sorter-cost:  292     Base: 3
0.09	c ---[   0]---> Sorter-cost:  232     Base: 7
0.11	c ==================================[MINISAT+]==================================
0.11	c | Conflicts | Original         | Learnt                           | Progress |
0.11	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
0.11	c ==============================================================================
0.11	c |         0 |   14706    40186 |    4902       0        0     nan |  0.000 % |
0.12	c |       102 |   14689    40140 |    5392     100      767     7.7 |  8.252 % |
0.13	c |       254 |   14689    40140 |    5931     252     2962    11.8 |  8.252 % |
0.15	c |       481 |   14664    40059 |    6524     477     4669     9.8 |  8.341 % |
0.19	c |       819 |   14655    40030 |    7177     814     7511     9.2 |  8.376 % |
0.24	c |      1325 |   14604    39853 |    7894    1309    17016    13.0 |  8.536 % |
0.34	c |      2084 |   14571    39742 |    8684    2061    39876    19.3 |  8.642 % |
0.47	c |      3223 |   14547    39664 |    9552    3197    79659    24.9 |  8.713 % |
0.67	c |      4931 |   14512    39543 |   10507    4902   155075    31.6 |  8.838 % |
1.04	c |      7493 |   14512    39543 |   11558    7464   258429    34.6 |  8.838 % |
1.91	c |     11337 |   14496    39491 |   12714   11304   398523    35.3 |  8.891 % |
3.31	c |     17103 |   14496    39491 |   13985   10342   304796    29.5 |  8.891 % |
5.46	c |     25754 |   14496    39491 |   15384   11374   285007    25.1 |  8.891 % |
8.37	c |     38729 |   14496    39491 |   16923   16014   387817    24.2 |  8.891 % |
12.86	c |     58192 |   14487    39460 |   18615   17491   382624    21.9 |  8.909 % |
20.30	c |     87387 |   11188    30781 |   20476    5774    80952    14.0 | 26.939 % |
20.36	c ==============================================================================
20.36	c UNSATISFIABLE
20.36	s UNSATISFIABLE
20.36	c _______________________________________________________________________________
20.36	c 
20.36	c restarts              : 16
20.36	c conflicts             : 87749          (4313 /sec)
20.36	c decisions             : 138861         (6825 /sec)
20.36	c propagations          : 0              (0 /sec)
20.36	c inspects              : 0              (0 /sec)
20.36	c CPU time              : 20.3469 s
20.36	c _______________________________________________________________________________

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node85/watcher-34914-1149248347 -o ROOT/results/node85/solver-34914-1149248347 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node85/34914-1149248347/instance-34914-1149248347.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.91 0.95 0.93 3/68 12272
/proc/meminfo: memFree=1529088/2055892 swapFree=4085348/4096564
[pid=12272] ppid=12270 vsize=1180 CPUtime=0
/proc/12272/stat : 12272 (minisat+) R 12270 12272 12226 0 -1 4194304 134 0 0 0 0 0 0 0 19 0 1 0 190473966 1208320 120 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135007481 0 0 4096 16386 0 0 0 17 1 0 0
/proc/12272/statm: 295 120 68 215 0 77 0

[startup+10.0023 s]
/proc/loadavg: 0.93 0.95 0.93 2/68 12272
/proc/meminfo: memFree=1524296/2055892 swapFree=4085348/4096564
[pid=12272] ppid=12270 vsize=5708 CPUtime=9.99
/proc/12272/stat : 12272 (minisat+) R 12270 12272 12226 0 -1 4194304 1311 0 0 0 999 0 0 0 25 0 1 0 190473966 5844992 1297 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134581178 0 0 4096 16386 0 0 0 17 1 0 0
/proc/12272/statm: 1427 1297 124 215 0 1209 0
Current children cumulated CPU time (s) 9.99
Current children cumulated vsize (Kb) 5708

[startup+20.0085 s]
/proc/loadavg: 0.94 0.96 0.93 2/68 12272
/proc/meminfo: memFree=1523784/2055892 swapFree=4085348/4096564
[pid=12272] ppid=12270 vsize=6256 CPUtime=20
/proc/12272/stat : 12272 (minisat+) R 12270 12272 12226 0 -1 4194304 1445 0 0 0 1999 1 0 0 25 0 1 0 190473966 6406144 1431 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134580777 0 0 4096 16386 0 0 0 17 1 0 0
/proc/12272/statm: 1564 1431 124 215 0 1346 0
Current children cumulated CPU time (s) 20
Current children cumulated vsize (Kb) 6256

Child status: 20
Real time (s): 20.3701
CPU time (s): 20.3599
CPU user time (s): 20.3479
CPU system time (s): 0.011998
CPU usage (%): 99.9499
Max. virtual memory (cumulated for all children) (Kb): 6256

Launcher Data (download as text)

Begin job on node85 on Fri Jun  2 11:39:07 UTC 2006


FILE ID= 34914-1149248347

PBS_JOBID= 297930

BENCH NAME= ROOT/tmp/node85/34914-1149248347/instance-34914-1149248347.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node85/34914-1149248347/instance-34914-1149248347.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node85/watcher-34914-1149248347 -o ROOT/results/node85/solver-34914-1149248347 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node85/34914-1149248347/instance-34914-1149248347.opb

MD5SUM SOLVER= 490d1d4b9bbf010afe7f0af63a5a62db
MD5SUM BENCH=  575b26c97ae90d0a5ad0f53e9f10755e

RANDOM SEED= 822942244


/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		: 3000.218
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6006.18
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		: 3000.218
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5999.41
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055892 kB
MemFree:       1529232 kB
Buffers:         30708 kB
Cached:         420480 kB
SwapCached:       2508 kB
Active:          48552 kB
Inactive:       411448 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055892 kB
LowFree:       1529232 kB
SwapTotal:     4096564 kB
SwapFree:      4085348 kB
Dirty:             172 kB
Writeback:           0 kB
Mapped:          16760 kB
Slab:            53224 kB
Committed_AS:   242240 kB
PageTables:       1292 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node85 on Fri Jun  2 11:39:28 UTC 2006