Trace number 39474

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 59.184 59.2169

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110968561.opb
MD5SUM6bd9689edc69ff7a2c6dd91eed3e12f3
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 benchmark0.559914
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 1247
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: 0.012
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
0.06	c Restart #2 #Var: 169 LB: 0 @ 0.057
0.12	c Restart #3 #Var: 169 LB: 0 @ 0.107
0.16	c Restart #4 #Var: 169 LB: 0 @ 0.156
0.24	c Restart #5 #Var: 169 LB: 0 @ 0.228
0.31	c Restart #6 #Var: 169 LB: 0 @ 0.304
0.42	c Restart #7 #Var: 169 LB: 0 @ 0.408
0.55	c Restart #8 #Var: 169 LB: 0 @ 0.538
0.72	c Restart #9 #Var: 169 LB: 0 @ 0.71
0.93	c Restart #10 #Var: 169 LB: 0 @ 0.92
1.15	c Restart #11 #Var: 169 LB: 0 @ 1.14
1.45	c Restart #12 #Var: 169 LB: 0 @ 1.442
1.73	c Restart #13 #Var: 169 LB: 0 @ 1.724
2.11	c Restart #14 #Var: 169 LB: 0 @ 2.101
2.56	c Restart #15 #Var: 169 LB: 0 @ 2.553
2.99	c Restart #16 #Var: 169 LB: 0 @ 2.985
3.49	c Restart #17 #Var: 169 LB: 0 @ 3.482
3.91	c Restart #18 #Var: 169 LB: 0 @ 3.904
4.40	c Restart #19 #Var: 169 LB: 0 @ 4.392
5.02	c Restart #20 #Var: 169 LB: 0 @ 5.011
5.66	c Restart #21 #Var: 169 LB: 0 @ 5.647
6.34	c Restart #22 #Var: 169 LB: 0 @ 6.329
7.13	c Restart #23 #Var: 169 LB: 0 @ 7.114
8.17	c Restart #24 #Var: 169 LB: 0 @ 8.157
9.34	c Restart #25 #Var: 169 LB: 0 @ 9.328
10.94	c Restart #26 #Var: 169 LB: 0 @ 10.926
12.31	c Restart #27 #Var: 169 LB: 0 @ 12.299
13.54	c Restart #28 #Var: 169 LB: 0 @ 13.528
15.07	c Restart #29 #Var: 168 LB: 0 @ 15.051
16.79	c Restart #30 #Var: 168 LB: 0 @ 16.779
18.61	c Restart #31 #Var: 168 LB: 0 @ 18.599
21.13	c Restart #32 #Var: 168 LB: 0 @ 21.109
22.77	c Restart #33 #Var: 168 LB: 0 @ 22.757
25.13	c Restart #34 #Var: 168 LB: 0 @ 25.112
27.16	c Restart #35 #Var: 168 LB: 0 @ 27.144
30.53	c Restart #36 #Var: 167 LB: 0 @ 30.507
33.90	c Restart #37 #Var: 167 LB: 0 @ 33.883
36.81	c Restart #38 #Var: 164 LB: 0 @ 36.79
39.72	c Restart #39 #Var: 164 LB: 0 @ 39.693
42.80	c Restart #40 #Var: 164 LB: 0 @ 42.771
46.85	c Restart #41 #Var: 164 LB: 0 @ 46.827
50.55	c Restart #42 #Var: 164 LB: 0 @ 50.526
54.95	c Restart #43 #Var: 152 LB: 0 @ 54.917
59.19	s UNSATISFIABLE
59.19	c Exit Code: 20
59.19	c Total time: 59.16 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/node6/watcher-39474-1149210460 -o ROOT/results/node6/solver-39474-1149210460 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node6/39474-1149210460/instance-39474-1149210460.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.91 0.95 0.90 3/64 31012
/proc/meminfo: memFree=1444072/2055924 swapFree=4181416/4192956
[pid=31012] ppid=31010 vsize=4664 CPUtime=0
/proc/31012/stat : 31012 (bsolo) R 31010 31012 30967 0 -1 0 167 0 0 0 0 0 0 0 19 0 1 0 186708110 4775936 147 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 2157922 0 0 4096 0 0 0 0 17 1 0 0
/proc/31012/statm: 1166 151 112 55 0 46 0

[startup+10.0022 s]
/proc/loadavg: 0.93 0.95 0.90 2/64 31012
/proc/meminfo: memFree=1400616/2055924 swapFree=4181416/4192956
[pid=31012] ppid=31010 vsize=48008 CPUtime=9.98
/proc/31012/stat : 31012 (bsolo) R 31010 31012 30967 0 -1 0 11263 0 0 0 990 8 0 0 25 0 1 0 186708110 49160192 11178 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31012/statm: 12002 11178 296 55 0 10894 0
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 48008

[startup+20.0082 s]
/proc/loadavg: 0.94 0.96 0.91 2/64 31012
/proc/meminfo: memFree=1376616/2055924 swapFree=4181416/4192956
[pid=31012] ppid=31010 vsize=72036 CPUtime=19.98
/proc/31012/stat : 31012 (bsolo) R 31010 31012 30967 0 -1 0 17249 0 0 0 1985 13 0 0 25 0 1 0 186708110 73764864 17164 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134534815 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31012/statm: 18009 17164 296 55 0 16901 0
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 72036

[startup+30.0141 s]
/proc/loadavg: 0.95 0.96 0.91 2/64 31012
/proc/meminfo: memFree=1355048/2055924 swapFree=4181416/4192956
[pid=31012] ppid=31010 vsize=93604 CPUtime=29.99
/proc/31012/stat : 31012 (bsolo) R 31010 31012 30967 0 -1 0 22628 0 0 0 2982 17 0 0 25 0 1 0 186708110 95850496 22543 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134533593 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31012/statm: 23401 22543 296 55 0 22293 0
Current children cumulated CPU time (s) 29.99
Current children cumulated vsize (Kb) 93604

[startup+40.0201 s]
/proc/loadavg: 0.95 0.96 0.91 2/64 31012
/proc/meminfo: memFree=1337768/2055924 swapFree=4181416/4192956
[pid=31012] ppid=31010 vsize=110964 CPUtime=39.98
/proc/31012/stat : 31012 (bsolo) R 31010 31012 30967 0 -1 0 26943 0 0 0 3978 20 0 0 25 0 1 0 186708110 113627136 26858 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31012/statm: 27741 26858 296 55 0 26633 0
Current children cumulated CPU time (s) 39.98
Current children cumulated vsize (Kb) 110964

[startup+50.0261 s]
/proc/loadavg: 0.96 0.96 0.91 2/64 31012
/proc/meminfo: memFree=1321448/2055924 swapFree=4181416/4192956
[pid=31012] ppid=31010 vsize=127216 CPUtime=49.99
/proc/31012/stat : 31012 (bsolo) R 31010 31012 30967 0 -1 0 31001 0 0 0 4975 24 0 0 25 0 1 0 186708110 130269184 30916 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134533916 0 0 4096 16384 0 0 0 17 1 0 0
/proc/31012/statm: 31804 30916 296 55 0 30696 0
Current children cumulated CPU time (s) 49.99
Current children cumulated vsize (Kb) 127216

Child status: 20
Real time (s): 59.2169
CPU time (s): 59.184
CPU user time (s): 58.8711
CPU system time (s): 0.312952
CPU usage (%): 99.9445
Max. virtual memory (cumulated for all children) (Kb): 127216

Launcher Data (download as text)

Begin job on node6 on Fri Jun  2 01:07:40 UTC 2006


FILE ID= 39474-1149210460

PBS_JOBID= 293916

BENCH NAME= ROOT/tmp/node6/39474-1149210460/instance-39474-1149210460.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node6/39474-1149210460/instance-39474-1149210460.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-39474-1149210460 -o ROOT/results/node6/solver-39474-1149210460 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node6/39474-1149210460/instance-39474-1149210460.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  6bd9689edc69ff7a2c6dd91eed3e12f3

RANDOM SEED= 790709731


/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		: 3000.268
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	: 5914.62
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		: 3000.268
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	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055924 kB
MemFree:       1444280 kB
Buffers:         32212 kB
Cached:         505068 kB
SwapCached:       3592 kB
Active:         339464 kB
Inactive:       206844 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1444280 kB
SwapTotal:     4192956 kB
SwapFree:      4181416 kB
Dirty:             196 kB
Writeback:           0 kB
Mapped:          14912 kB
Slab:            51340 kB
Committed_AS:   173796 kB
PageTables:       1480 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node6 on Fri Jun  2 01:08:39 UTC 2006