Trace number 39431

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 NameAnswerCPU timeWall clock time
bsolo 2006/05UNSAT 45.978 46.0071

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111219348.opb
MD5SUM33ddab1c7704f894e7f63014edbb9b9e
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark0.693893
Has Objective FunctionNO
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables169
Total number of constraints101
Number of constraints which are clauses30
Number of constraints which are cardinality constraints (but not clauses)70
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint169
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 38
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 1212
Number of bits of the biggest sum of numbers11
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 Time Limit set via PBTIMEOUT to 1800
0.01	c INFO: OSL Context initialized.
0.02	c Initial problem consists of 169 variables and 101 constraints.
0.02	c Using non-optimization problem switches.
0.02	c No problem reductions applied in OPT. instance.
0.02	c	preprocess terminated. Elapsed time: 0.013
0.02	c After prepocess the problem consists of 169 variables and 99 constraints.
0.03	c Restart #1 #Var: 169 LB: 0 @ 0.028
0.07	c Restart #2 #Var: 169 LB: 0 @ 0.061
0.11	c Restart #3 #Var: 169 LB: 0 @ 0.106
0.16	c Restart #4 #Var: 169 LB: 0 @ 0.154
0.22	c Restart #5 #Var: 169 LB: 0 @ 0.215
0.31	c Restart #6 #Var: 169 LB: 0 @ 0.301
0.42	c Restart #7 #Var: 169 LB: 0 @ 0.41
0.57	c Restart #8 #Var: 169 LB: 0 @ 0.562
0.78	c Restart #9 #Var: 169 LB: 0 @ 0.769
0.97	c Restart #10 #Var: 169 LB: 0 @ 0.96
1.21	c Restart #11 #Var: 169 LB: 0 @ 1.205
1.50	c Restart #12 #Var: 169 LB: 0 @ 1.496
1.80	c Restart #13 #Var: 169 LB: 0 @ 1.793
2.21	c Restart #14 #Var: 169 LB: 0 @ 2.201
2.61	c Restart #15 #Var: 169 LB: 0 @ 2.599
3.17	c Restart #16 #Var: 169 LB: 0 @ 3.166
3.78	c Restart #17 #Var: 169 LB: 0 @ 3.774
4.38	c Restart #18 #Var: 169 LB: 0 @ 4.368
4.96	c Restart #19 #Var: 169 LB: 0 @ 4.953
6.08	c Restart #20 #Var: 169 LB: 0 @ 6.071
6.95	c Restart #21 #Var: 169 LB: 0 @ 6.94
7.94	c Restart #22 #Var: 169 LB: 0 @ 7.93
9.05	c Restart #23 #Var: 169 LB: 0 @ 9.037
9.88	c Restart #24 #Var: 169 LB: 0 @ 9.871
11.22	c Restart #25 #Var: 169 LB: 0 @ 11.204
12.30	c Restart #26 #Var: 167 LB: 0 @ 12.286
14.25	c Restart #27 #Var: 167 LB: 0 @ 14.24
15.98	c Restart #28 #Var: 166 LB: 0 @ 15.963
17.46	c Restart #29 #Var: 166 LB: 0 @ 17.443
18.75	c Restart #30 #Var: 166 LB: 0 @ 18.733
21.30	c Restart #31 #Var: 166 LB: 0 @ 21.286
22.82	c Restart #32 #Var: 163 LB: 0 @ 22.801
24.19	c Restart #33 #Var: 163 LB: 0 @ 24.173
26.61	c Restart #34 #Var: 162 LB: 0 @ 26.591
28.66	c Restart #35 #Var: 161 LB: 0 @ 28.644
31.69	c Restart #36 #Var: 160 LB: 0 @ 31.669
35.53	c Restart #37 #Var: 160 LB: 0 @ 35.511
38.90	c Restart #38 #Var: 160 LB: 0 @ 38.877
43.34	c Restart #39 #Var: 160 LB: 0 @ 43.32
45.98	s UNSATISFIABLE
45.98	c Exit Code: 20
45.98	c Total time: 45.958 s

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/node91/watcher-39431-1149207013 -o ROOT/results/node91/solver-39431-1149207013 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node91/39431-1149207013/instance-39431-1149207013.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.75 0.87 0.86 2/68 18507
/proc/meminfo: memFree=1735440/2055892 swapFree=4085380/4096564
[pid=18507] ppid=18505 vsize=4672 CPUtime=0
/proc/18507/stat : 18507 (bsolo) R 18505 18507 18462 0 -1 0 152 0 0 0 0 0 0 0 18 0 1 0 186340285 4784128 133 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 1252660 0 0 4096 0 0 0 0 17 1 0 0
/proc/18507/statm: 1168 135 105 55 0 46 0

[startup+10.0018 s]
/proc/loadavg: 0.78 0.87 0.86 2/68 18507
/proc/meminfo: memFree=1696424/2055892 swapFree=4085380/4096564
[pid=18507] ppid=18505 vsize=43508 CPUtime=9.98
/proc/18507/stat : 18507 (bsolo) R 18505 18507 18462 0 -1 0 10126 0 0 0 990 8 0 0 25 0 1 0 186340285 44552192 10042 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134534977 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18507/statm: 10877 10042 293 55 0 9768 0
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 43508

[startup+20.0077 s]
/proc/loadavg: 0.82 0.88 0.86 2/68 18507
/proc/meminfo: memFree=1671728/2055892 swapFree=4085380/4096564
[pid=18507] ppid=18505 vsize=68212 CPUtime=19.98
/proc/18507/stat : 18507 (bsolo) R 18505 18507 18462 0 -1 0 16297 0 0 0 1984 14 0 0 25 0 1 0 186340285 69849088 16213 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18507/statm: 17053 16213 293 55 0 15944 0
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 68212

[startup+30.0137 s]
/proc/loadavg: 0.84 0.88 0.86 2/68 18507
/proc/meminfo: memFree=1647472/2055892 swapFree=4085380/4096564
[pid=18507] ppid=18505 vsize=92520 CPUtime=29.98
/proc/18507/stat : 18507 (bsolo) R 18505 18507 18462 0 -1 0 22341 0 0 0 2978 20 0 0 25 0 1 0 186340285 94740480 22257 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18507/statm: 23130 22257 293 55 0 22021 0
Current children cumulated CPU time (s) 29.98
Current children cumulated vsize (Kb) 92520

[startup+40.0196 s]
/proc/loadavg: 0.87 0.89 0.86 2/68 18507
/proc/meminfo: memFree=1631088/2055892 swapFree=4085380/4096564
[pid=18507] ppid=18505 vsize=108916 CPUtime=39.99
/proc/18507/stat : 18507 (bsolo) R 18505 18507 18462 0 -1 0 26420 0 0 0 3974 25 0 0 25 0 1 0 186340285 111529984 26335 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134548542 0 0 4096 16384 0 0 0 17 1 0 0
/proc/18507/statm: 27229 26335 293 55 0 26120 0
Current children cumulated CPU time (s) 39.99
Current children cumulated vsize (Kb) 108916

Child status: 20
Real time (s): 46.0071
CPU time (s): 45.978
CPU user time (s): 45.6801
CPU system time (s): 0.297954
CPU usage (%): 99.9368
Max. virtual memory (cumulated for all children) (Kb): 108916

Launcher Data (download as text)

Begin job on node91 on Fri Jun  2 00:10:13 UTC 2006


FILE ID= 39431-1149207013

PBS_JOBID= 293356

BENCH NAME= ROOT/tmp/node91/39431-1149207013/instance-39431-1149207013.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node91/39431-1149207013/instance-39431-1149207013.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node91/watcher-39431-1149207013 -o ROOT/results/node91/solver-39431-1149207013 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node91/39431-1149207013/instance-39431-1149207013.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  33ddab1c7704f894e7f63014edbb9b9e

RANDOM SEED= 386039660


/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		: 3000.279
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		: 3000.279
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	: 5999.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055892 kB
MemFree:       1735648 kB
Buffers:         26220 kB
Cached:         221256 kB
SwapCached:       2968 kB
Active:          84372 kB
Inactive:       172336 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055892 kB
LowFree:       1735648 kB
SwapTotal:     4096564 kB
SwapFree:      4085380 kB
Dirty:             160 kB
Writeback:           0 kB
Mapped:          16596 kB
Slab:            50116 kB
Committed_AS:   198948 kB
PageTables:       1284 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node91 on Fri Jun  2 00:10:59 UTC 2006