Trace number 39457

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 63.6953 63.7501

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110976935.opb
MD5SUM09a2a97c88821c18a87bc8c5a7b2e947
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 benchmark0.014997
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 1229
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
0.03	c INFO: OSL Context initialized.
0.04	c Initial problem consists of 169 variables and 101 constraints.
0.04	c Using non-optimization problem switches.
0.04	c No problem reductions applied in OPT. instance.
0.04	c	preprocess terminated. Elapsed time: 0.013
0.04	c After prepocess the problem consists of 169 variables and 99 constraints.
0.05	c Restart #1 #Var: 169 LB: 0 @ 0.027
0.08	c Restart #2 #Var: 169 LB: 0 @ 0.055
0.13	c Restart #3 #Var: 169 LB: 0 @ 0.104
0.18	c Restart #4 #Var: 169 LB: 0 @ 0.15
0.24	c Restart #5 #Var: 169 LB: 0 @ 0.218
0.32	c Restart #6 #Var: 169 LB: 0 @ 0.298
0.43	c Restart #7 #Var: 169 LB: 0 @ 0.407
0.62	c Restart #8 #Var: 169 LB: 0 @ 0.592
0.79	c Restart #9 #Var: 169 LB: 0 @ 0.765
1.00	c Restart #10 #Var: 169 LB: 0 @ 0.977
1.21	c Restart #11 #Var: 169 LB: 0 @ 1.187
1.50	c Restart #12 #Var: 169 LB: 0 @ 1.479
1.86	c Restart #13 #Var: 169 LB: 0 @ 1.833
2.29	c Restart #14 #Var: 169 LB: 0 @ 2.261
2.65	c Restart #15 #Var: 169 LB: 0 @ 2.626
3.18	c Restart #16 #Var: 169 LB: 0 @ 3.153
3.72	c Restart #17 #Var: 169 LB: 0 @ 3.698
4.31	c Restart #18 #Var: 169 LB: 0 @ 4.282
4.97	c Restart #19 #Var: 169 LB: 0 @ 4.935
5.66	c Restart #20 #Var: 169 LB: 0 @ 5.628
6.56	c Restart #21 #Var: 169 LB: 0 @ 6.525
7.35	c Restart #22 #Var: 169 LB: 0 @ 7.321
8.15	c Restart #23 #Var: 169 LB: 0 @ 8.115
9.65	c Restart #24 #Var: 169 LB: 0 @ 9.618
10.58	c Restart #25 #Var: 169 LB: 0 @ 10.543
11.82	c Restart #26 #Var: 169 LB: 0 @ 11.788
12.89	c Restart #27 #Var: 168 LB: 0 @ 12.851
15.54	c Restart #28 #Var: 167 LB: 0 @ 15.503
16.76	c Restart #29 #Var: 167 LB: 0 @ 16.721
18.50	c Restart #30 #Var: 167 LB: 0 @ 18.466
20.15	c Restart #31 #Var: 167 LB: 0 @ 20.109
22.32	c Restart #32 #Var: 166 LB: 0 @ 22.284
24.05	c Restart #33 #Var: 166 LB: 0 @ 24.015
27.07	c Restart #34 #Var: 165 LB: 0 @ 27.034
30.26	c Restart #35 #Var: 161 LB: 0 @ 30.218
33.61	c Restart #36 #Var: 161 LB: 0 @ 33.563
36.43	c Restart #37 #Var: 161 LB: 0 @ 36.391
39.70	c Restart #38 #Var: 160 LB: 0 @ 39.656
43.50	c Restart #39 #Var: 160 LB: 0 @ 43.456
48.00	c Restart #40 #Var: 160 LB: 0 @ 47.958
53.69	c Restart #41 #Var: 157 LB: 0 @ 53.643
59.58	c Restart #42 #Var: 133 LB: 0 @ 59.534
63.72	s UNSATISFIABLE
63.72	c Exit Code: 20
63.72	c Total time: 63.673 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/node70/watcher-39457-1149208976 -o ROOT/results/node70/solver-39457-1149208976 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node70/39457-1149208976/instance-39457-1149208976.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.91 0.95 0.90 2/64 26247
/proc/meminfo: memFree=1601880/2055920 swapFree=4182240/4192956
[pid=26247] ppid=26245 vsize=3364 CPUtime=0
/proc/26247/stat : 26247 (bsolo) R 26245 26247 26202 0 -1 0 60 0 0 0 0 0 0 0 19 0 1 0 186567242 3444736 43 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 8413988 0 0 4096 0 0 0 0 17 1 0 0
/proc/26247/statm: 859 43 32 55 0 40 0

[startup+10.0018 s]
/proc/loadavg: 0.93 0.95 0.90 2/64 26247
/proc/meminfo: memFree=1562672/2055920 swapFree=4182240/4192956
[pid=26247] ppid=26245 vsize=43664 CPUtime=9.96
/proc/26247/stat : 26247 (bsolo) R 26245 26247 26202 0 -1 0 10156 0 0 0 987 9 0 0 25 0 1 0 186567242 44711936 10071 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134534926 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26247/statm: 10916 10071 296 55 0 9808 0
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 43664

[startup+20.0076 s]
/proc/loadavg: 0.94 0.95 0.91 2/64 26247
/proc/meminfo: memFree=1536304/2055920 swapFree=4182240/4192956
[pid=26247] ppid=26245 vsize=70064 CPUtime=19.96
/proc/26247/stat : 26247 (bsolo) R 26245 26247 26202 0 -1 0 16743 0 0 0 1981 15 0 0 25 0 1 0 186567242 71745536 16658 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26247/statm: 17516 16658 296 55 0 16408 0
Current children cumulated CPU time (s) 19.96
Current children cumulated vsize (Kb) 70064

[startup+30.0134 s]
/proc/loadavg: 0.95 0.95 0.91 2/64 26247
/proc/meminfo: memFree=1516656/2055920 swapFree=4182240/4192956
[pid=26247] ppid=26245 vsize=89632 CPUtime=29.96
/proc/26247/stat : 26247 (bsolo) R 26245 26247 26202 0 -1 0 21646 0 0 0 2974 22 0 0 25 0 1 0 186567242 91783168 21561 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26247/statm: 22408 21561 296 55 0 21300 0
Current children cumulated CPU time (s) 29.96
Current children cumulated vsize (Kb) 89632

[startup+40.0192 s]
/proc/loadavg: 0.95 0.95 0.91 2/64 26247
/proc/meminfo: memFree=1498736/2055920 swapFree=4182240/4192956
[pid=26247] ppid=26245 vsize=107620 CPUtime=39.97
/proc/26247/stat : 26247 (bsolo) R 26245 26247 26202 0 -1 0 26122 0 0 0 3969 28 0 0 25 0 1 0 186567242 110202880 26037 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134534809 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26247/statm: 26905 26037 296 55 0 25797 0
Current children cumulated CPU time (s) 39.97
Current children cumulated vsize (Kb) 107620

[startup+50.025 s]
/proc/loadavg: 0.96 0.95 0.91 2/64 26247
/proc/meminfo: memFree=1485296/2055920 swapFree=4182240/4192956
[pid=26247] ppid=26245 vsize=121028 CPUtime=49.97
/proc/26247/stat : 26247 (bsolo) R 26245 26247 26202 0 -1 0 29467 0 0 0 4964 33 0 0 25 0 1 0 186567242 123932672 29381 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26247/statm: 30257 29381 296 55 0 29149 0
Current children cumulated CPU time (s) 49.97
Current children cumulated vsize (Kb) 121028

[startup+60.0309 s]
/proc/loadavg: 0.97 0.95 0.91 2/64 26247
/proc/meminfo: memFree=1473200/2055920 swapFree=4182240/4192956
[pid=26247] ppid=26245 vsize=133196 CPUtime=59.97
/proc/26247/stat : 26247 (bsolo) R 26245 26247 26202 0 -1 0 32488 0 0 0 5960 37 0 0 25 0 1 0 186567242 136392704 32400 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134595854 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26247/statm: 33299 32400 296 55 0 32191 0
Current children cumulated CPU time (s) 59.97
Current children cumulated vsize (Kb) 133196

Child status: 20
Real time (s): 63.7501
CPU time (s): 63.6953
CPU user time (s): 63.2854
CPU system time (s): 0.409937
CPU usage (%): 99.9141
Max. virtual memory (cumulated for all children) (Kb): 133196

Launcher Data (download as text)

Begin job on node70 on Fri Jun  2 00:42:56 UTC 2006


FILE ID= 39457-1149208976

PBS_JOBID= 293691

BENCH NAME= ROOT/tmp/node70/39457-1149208976/instance-39457-1149208976.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node70/39457-1149208976/instance-39457-1149208976.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node70/watcher-39457-1149208976 -o ROOT/results/node70/solver-39457-1149208976 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node70/39457-1149208976/instance-39457-1149208976.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  09a2a97c88821c18a87bc8c5a7b2e947

RANDOM SEED= 268273034


/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		: 3000.265
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		: 3000.265
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:       1602024 kB
Buffers:         35096 kB
Cached:         345696 kB
SwapCached:       2456 kB
Active:         108772 kB
Inactive:       280692 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1602024 kB
SwapTotal:     4192956 kB
SwapFree:      4182240 kB
Dirty:             160 kB
Writeback:           0 kB
Mapped:          15400 kB
Slab:            50468 kB
Committed_AS:   151568 kB
PageTables:       1412 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node70 on Fri Jun  2 00:44:00 UTC 2006