Trace number 39462

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 60.1489 60.1793

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110977273.opb
MD5SUM3e6af77ac44df40c1eda4de6fd376120
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 benchmark0.25296
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 1243
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: 0.014
0.02	c After prepocess the problem consists of 169 variables and 99 constraints.
0.03	c Restart #1 #Var: 169 LB: 0 @ 0.026
0.07	c Restart #2 #Var: 169 LB: 0 @ 0.06
0.12	c Restart #3 #Var: 169 LB: 0 @ 0.113
0.17	c Restart #4 #Var: 169 LB: 0 @ 0.168
0.24	c Restart #5 #Var: 169 LB: 0 @ 0.23
0.32	c Restart #6 #Var: 169 LB: 0 @ 0.31
0.47	c Restart #7 #Var: 169 LB: 0 @ 0.459
0.59	c Restart #8 #Var: 169 LB: 0 @ 0.586
0.75	c Restart #9 #Var: 169 LB: 0 @ 0.745
0.98	c Restart #10 #Var: 169 LB: 0 @ 0.966
1.21	c Restart #11 #Var: 169 LB: 0 @ 1.198
1.44	c Restart #12 #Var: 169 LB: 0 @ 1.424
1.69	c Restart #13 #Var: 169 LB: 0 @ 1.679
2.10	c Restart #14 #Var: 169 LB: 0 @ 2.086
2.45	c Restart #15 #Var: 169 LB: 0 @ 2.442
3.06	c Restart #16 #Var: 169 LB: 0 @ 3.044
3.55	c Restart #17 #Var: 169 LB: 0 @ 3.543
4.26	c Restart #18 #Var: 169 LB: 0 @ 4.244
4.82	c Restart #19 #Var: 169 LB: 0 @ 4.81
5.61	c Restart #20 #Var: 169 LB: 0 @ 5.599
6.37	c Restart #21 #Var: 169 LB: 0 @ 6.36
7.54	c Restart #22 #Var: 169 LB: 0 @ 7.527
9.01	c Restart #23 #Var: 169 LB: 0 @ 9
10.07	c Restart #24 #Var: 169 LB: 0 @ 10.057
11.22	c Restart #25 #Var: 169 LB: 0 @ 11.204
12.64	c Restart #26 #Var: 169 LB: 0 @ 12.625
13.73	c Restart #27 #Var: 169 LB: 0 @ 13.717
15.48	c Restart #28 #Var: 169 LB: 0 @ 15.46
17.33	c Restart #29 #Var: 169 LB: 0 @ 17.318
18.73	c Restart #30 #Var: 169 LB: 0 @ 18.719
20.78	c Restart #31 #Var: 169 LB: 0 @ 20.762
22.46	c Restart #32 #Var: 168 LB: 0 @ 22.445
24.36	c Restart #33 #Var: 168 LB: 0 @ 24.34
26.09	c Restart #34 #Var: 168 LB: 0 @ 26.07
29.24	c Restart #35 #Var: 168 LB: 0 @ 29.226
32.92	c Restart #36 #Var: 168 LB: 0 @ 32.902
35.55	c Restart #37 #Var: 168 LB: 0 @ 35.531
39.38	c Restart #38 #Var: 167 LB: 0 @ 39.359
42.62	c Restart #39 #Var: 165 LB: 0 @ 42.602
46.70	c Restart #40 #Var: 165 LB: 0 @ 46.672
51.71	c Restart #41 #Var: 164 LB: 0 @ 51.682
56.27	c Restart #42 #Var: 150 LB: 0 @ 56.244
60.15	s UNSATISFIABLE
60.15	c Exit Code: 20
60.15	c Total time: 60.126 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/node77/watcher-39462-1149209485 -o ROOT/results/node77/solver-39462-1149209485 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node77/39462-1149209485/instance-39462-1149209485.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.91 0.95 0.90 4/67 22527
/proc/meminfo: memFree=1710248/2055892 swapFree=4085336/4096564
[pid=22527] ppid=22525 vsize=3228 CPUtime=0
/proc/22527/stat : 22527 (bsolo) R 22525 22527 22482 0 -1 0 54 0 0 0 0 0 0 0 20 0 1 0 186587659 3305472 38 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 1463220 0 0 4096 0 0 0 0 17 1 0 0
/proc/22527/statm: 842 39 28 55 0 40 0

[startup+10.0026 s]
/proc/loadavg: 0.93 0.95 0.90 2/67 22527
/proc/meminfo: memFree=1672296/2055892 swapFree=4085336/4096564
[pid=22527] ppid=22525 vsize=42340 CPUtime=9.97
/proc/22527/stat : 22527 (bsolo) R 22525 22527 22482 0 -1 0 9849 0 0 0 992 5 0 0 25 0 1 0 186587659 43356160 9765 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22527/statm: 10585 9765 293 55 0 9476 0
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 42340

[startup+20.0089 s]
/proc/loadavg: 0.94 0.96 0.91 2/67 22527
/proc/meminfo: memFree=1647720/2055892 swapFree=4085336/4096564
[pid=22527] ppid=22525 vsize=66900 CPUtime=19.98
/proc/22527/stat : 22527 (bsolo) R 22525 22527 22482 0 -1 0 15969 0 0 0 1987 11 0 0 25 0 1 0 186587659 68505600 15885 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134533905 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22527/statm: 16725 15885 293 55 0 15616 0
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 66900

[startup+30.0141 s]
/proc/loadavg: 0.95 0.96 0.91 2/67 22527
/proc/meminfo: memFree=1624680/2055892 swapFree=4085336/4096564
[pid=22527] ppid=22525 vsize=90012 CPUtime=29.99
/proc/22527/stat : 22527 (bsolo) R 22525 22527 22482 0 -1 0 21717 0 0 0 2982 17 0 0 25 0 1 0 186587659 92172288 21633 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22527/statm: 22503 21633 293 55 0 21394 0
Current children cumulated CPU time (s) 29.99
Current children cumulated vsize (Kb) 90012

[startup+40.0193 s]
/proc/loadavg: 0.95 0.96 0.91 2/67 22527
/proc/meminfo: memFree=1608040/2055892 swapFree=4085336/4096564
[pid=22527] ppid=22525 vsize=106716 CPUtime=39.99
/proc/22527/stat : 22527 (bsolo) R 22525 22527 22482 0 -1 0 25869 0 0 0 3979 20 0 0 25 0 1 0 186587659 109277184 25785 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 1898539 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22527/statm: 26679 25785 293 55 0 25570 0
Current children cumulated CPU time (s) 39.99
Current children cumulated vsize (Kb) 106716

[startup+50.0256 s]
/proc/loadavg: 0.96 0.96 0.91 2/67 22527
/proc/meminfo: memFree=1593704/2055892 swapFree=4085336/4096564
[pid=22527] ppid=22525 vsize=121136 CPUtime=49.99
/proc/22527/stat : 22527 (bsolo) R 22525 22527 22482 0 -1 0 29448 0 0 0 4976 23 0 0 25 0 1 0 186587659 124043264 29364 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134534988 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22527/statm: 30284 29364 293 55 0 29175 0
Current children cumulated CPU time (s) 49.99
Current children cumulated vsize (Kb) 121136

[startup+60.0318 s]
/proc/loadavg: 0.97 0.96 0.91 2/67 22527
/proc/meminfo: memFree=1581224/2055892 swapFree=4085336/4096564
[pid=22527] ppid=22525 vsize=133544 CPUtime=59.99
/proc/22527/stat : 22527 (bsolo) R 22525 22527 22482 0 -1 0 32554 0 0 0 5972 27 0 0 25 0 1 0 186587659 136749056 32470 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/22527/statm: 33386 32470 293 55 0 32277 0
Current children cumulated CPU time (s) 59.99
Current children cumulated vsize (Kb) 133544

Child status: 20
Real time (s): 60.1793
CPU time (s): 60.1489
CPU user time (s): 59.8509
CPU system time (s): 0.297954
CPU usage (%): 99.9494
Max. virtual memory (cumulated for all children) (Kb): 133544

Launcher Data (download as text)

Begin job on node77 on Fri Jun  2 00:51:25 UTC 2006


FILE ID= 39462-1149209485

PBS_JOBID= 293763

BENCH NAME= ROOT/tmp/node77/39462-1149209485/instance-39462-1149209485.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node77/39462-1149209485/instance-39462-1149209485.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node77/watcher-39462-1149209485 -o ROOT/results/node77/solver-39462-1149209485 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node77/39462-1149209485/instance-39462-1149209485.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  3e6af77ac44df40c1eda4de6fd376120

RANDOM SEED= 698528466


/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		: 3000.238
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	: 6006.16
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		: 3000.238
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:       1710456 kB
Buffers:         23980 kB
Cached:         258840 kB
SwapCached:       2644 kB
Active:          90316 kB
Inactive:       201360 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055892 kB
LowFree:       1710456 kB
SwapTotal:     4096564 kB
SwapFree:      4085336 kB
Dirty:             196 kB
Writeback:           0 kB
Mapped:          16108 kB
Slab:            40448 kB
Committed_AS:   185792 kB
PageTables:       1276 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node77 on Fri Jun  2 00:52:25 UTC 2006