Trace number 39438

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 54.7937 54.8217

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110971697.opb
MD5SUMc9a87792271871ea771a066925b39a9d
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 benchmark0.245962
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 1238
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: 0.015
0.02	c After prepocess the problem consists of 169 variables and 99 constraints.
0.03	c Restart #1 #Var: 169 LB: 0 @ 0.03
0.06	c Restart #2 #Var: 169 LB: 0 @ 0.061
0.12	c Restart #3 #Var: 169 LB: 0 @ 0.112
0.17	c Restart #4 #Var: 169 LB: 0 @ 0.162
0.23	c Restart #5 #Var: 169 LB: 0 @ 0.225
0.32	c Restart #6 #Var: 169 LB: 0 @ 0.312
0.43	c Restart #7 #Var: 169 LB: 0 @ 0.421
0.57	c Restart #8 #Var: 169 LB: 0 @ 0.563
0.80	c Restart #9 #Var: 169 LB: 0 @ 0.794
1.09	c Restart #10 #Var: 169 LB: 0 @ 1.085
1.31	c Restart #11 #Var: 169 LB: 0 @ 1.303
1.60	c Restart #12 #Var: 169 LB: 0 @ 1.593
1.90	c Restart #13 #Var: 169 LB: 0 @ 1.896
2.19	c Restart #14 #Var: 169 LB: 0 @ 2.183
2.64	c Restart #15 #Var: 169 LB: 0 @ 2.632
3.04	c Restart #16 #Var: 169 LB: 0 @ 3.032
3.46	c Restart #17 #Var: 169 LB: 0 @ 3.454
4.05	c Restart #18 #Var: 169 LB: 0 @ 4.043
4.75	c Restart #19 #Var: 169 LB: 0 @ 4.741
5.55	c Restart #20 #Var: 169 LB: 0 @ 5.542
6.19	c Restart #21 #Var: 169 LB: 0 @ 6.18
7.00	c Restart #22 #Var: 169 LB: 0 @ 6.992
7.74	c Restart #23 #Var: 169 LB: 0 @ 7.732
8.58	c Restart #24 #Var: 169 LB: 0 @ 8.577
9.57	c Restart #25 #Var: 169 LB: 0 @ 9.559
10.87	c Restart #26 #Var: 169 LB: 0 @ 10.864
11.89	c Restart #27 #Var: 169 LB: 0 @ 11.878
13.20	c Restart #28 #Var: 169 LB: 0 @ 13.192
15.54	c Restart #29 #Var: 169 LB: 0 @ 15.53
17.12	c Restart #30 #Var: 168 LB: 0 @ 17.105
19.40	c Restart #31 #Var: 168 LB: 0 @ 19.384
21.54	c Restart #32 #Var: 168 LB: 0 @ 21.526
23.95	c Restart #33 #Var: 168 LB: 0 @ 23.933
26.14	c Restart #34 #Var: 167 LB: 0 @ 26.124
28.56	c Restart #35 #Var: 167 LB: 0 @ 28.542
31.53	c Restart #36 #Var: 167 LB: 0 @ 31.517
34.46	c Restart #37 #Var: 167 LB: 0 @ 34.439
38.57	c Restart #38 #Var: 162 LB: 0 @ 38.546
42.24	c Restart #39 #Var: 151 LB: 0 @ 42.224
46.43	c Restart #40 #Var: 151 LB: 0 @ 46.41
50.23	c Restart #41 #Var: 149 LB: 0 @ 50.207
54.80	s UNSATISFIABLE
54.80	c Exit Code: 20
54.80	c Total time: 54.77 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/node74/watcher-39438-1149208427 -o ROOT/results/node74/solver-39438-1149208427 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node74/39438-1149208427/instance-39438-1149208427.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.84 0.94 0.90 2/64 25271
/proc/meminfo: memFree=1464376/2055920 swapFree=4182292/4192956
[pid=25271] ppid=25269 vsize=4928 CPUtime=0
/proc/25271/stat : 25271 (bsolo) R 25269 25271 25226 0 -1 0 289 0 0 0 0 0 0 0 18 0 1 0 186507000 5046272 258 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 7794512 0 0 4096 16384 0 0 0 17 1 0 0
/proc/25271/statm: 1232 264 174 55 0 124 0

[startup+10.0024 s]
/proc/loadavg: 0.87 0.94 0.90 2/64 25271
/proc/meminfo: memFree=1420536/2055920 swapFree=4182292/4192956
[pid=25271] ppid=25269 vsize=48272 CPUtime=9.98
/proc/25271/stat : 25271 (bsolo) R 25269 25271 25226 0 -1 0 11322 0 0 0 990 8 0 0 25 0 1 0 186507000 49430528 11237 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134533916 0 0 4096 16384 0 0 0 17 1 0 0
/proc/25271/statm: 12068 11237 296 55 0 10960 0
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 48272

[startup+20.0083 s]
/proc/loadavg: 0.89 0.94 0.90 2/64 25271
/proc/meminfo: memFree=1396664/2055920 swapFree=4182292/4192956
[pid=25271] ppid=25269 vsize=72184 CPUtime=19.98
/proc/25271/stat : 25271 (bsolo) R 25269 25271 25226 0 -1 0 17290 0 0 0 1985 13 0 0 25 0 1 0 186507000 73916416 17205 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134548441 0 0 4096 16384 0 0 0 17 1 0 0
/proc/25271/statm: 18046 17205 296 55 0 16938 0
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 72184

[startup+30.0143 s]
/proc/loadavg: 0.90 0.94 0.90 2/64 25271
/proc/meminfo: memFree=1375800/2055920 swapFree=4182292/4192956
[pid=25271] ppid=25269 vsize=93064 CPUtime=29.99
/proc/25271/stat : 25271 (bsolo) R 25269 25271 25226 0 -1 0 22488 0 0 0 2981 18 0 0 25 0 1 0 186507000 95297536 22403 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/25271/statm: 23266 22403 296 55 0 22158 0
Current children cumulated CPU time (s) 29.99
Current children cumulated vsize (Kb) 93064

[startup+40.0213 s]
/proc/loadavg: 0.92 0.94 0.90 2/64 25271
/proc/meminfo: memFree=1360248/2055920 swapFree=4182292/4192956
[pid=25271] ppid=25269 vsize=108644 CPUtime=39.99
/proc/25271/stat : 25271 (bsolo) R 25269 25271 25226 0 -1 0 26369 0 0 0 3978 21 0 0 25 0 1 0 186507000 111251456 26284 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134548247 0 0 4096 16384 0 0 0 17 1 0 0
/proc/25271/statm: 27161 26284 296 55 0 26053 0
Current children cumulated CPU time (s) 39.99
Current children cumulated vsize (Kb) 108644

[startup+50.0282 s]
/proc/loadavg: 0.93 0.94 0.90 2/64 25271
/proc/meminfo: memFree=1344888/2055920 swapFree=4182292/4192956
[pid=25271] ppid=25269 vsize=123968 CPUtime=50
/proc/25271/stat : 25271 (bsolo) R 25269 25271 25226 0 -1 0 30197 0 0 0 4975 25 0 0 25 0 1 0 186507000 126943232 30111 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/25271/statm: 30992 30111 296 55 0 29884 0
Current children cumulated CPU time (s) 50
Current children cumulated vsize (Kb) 123968

Child status: 20
Real time (s): 54.8217
CPU time (s): 54.7937
CPU user time (s): 54.5017
CPU system time (s): 0.291955
CPU usage (%): 99.9489
Max. virtual memory (cumulated for all children) (Kb): 123968

Launcher Data (download as text)

Begin job on node74 on Fri Jun  2 00:33:47 UTC 2006


FILE ID= 39438-1149208427

PBS_JOBID= 293448

BENCH NAME= ROOT/tmp/node74/39438-1149208427/instance-39438-1149208427.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node74/39438-1149208427/instance-39438-1149208427.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node74/watcher-39438-1149208427 -o ROOT/results/node74/solver-39438-1149208427 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node74/39438-1149208427/instance-39438-1149208427.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  c9a87792271871ea771a066925b39a9d

RANDOM SEED= 308240670


/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		: 3000.274
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		: 3000.274
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:      2055920 kB
MemFree:       1464584 kB
Buffers:         33408 kB
Cached:         482004 kB
SwapCached:       2476 kB
Active:          57672 kB
Inactive:       466532 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1464584 kB
SwapTotal:     4192956 kB
SwapFree:      4182292 kB
Dirty:             168 kB
Writeback:           0 kB
Mapped:          15796 kB
Slab:            53164 kB
Committed_AS:   165404 kB
PageTables:       1424 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node74 on Fri Jun  2 00:34:42 UTC 2006