Trace number 39454

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 59.7299 59.7623

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111224451.opb
MD5SUM0df4a6220c19cfaf8dc35e55531bf2a0
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 benchmark0.160974
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 1261
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 @ 0.025
0.06	c Restart #2 #Var: 169 LB: 0 @ 0.053
0.10	c Restart #3 #Var: 169 LB: 0 @ 0.091
0.15	c Restart #4 #Var: 169 LB: 0 @ 0.14
0.21	c Restart #5 #Var: 169 LB: 0 @ 0.199
0.29	c Restart #6 #Var: 169 LB: 0 @ 0.278
0.40	c Restart #7 #Var: 169 LB: 0 @ 0.388
0.54	c Restart #8 #Var: 169 LB: 0 @ 0.529
0.76	c Restart #9 #Var: 169 LB: 0 @ 0.752
0.99	c Restart #10 #Var: 169 LB: 0 @ 0.986
1.21	c Restart #11 #Var: 169 LB: 0 @ 1.203
1.49	c Restart #12 #Var: 169 LB: 0 @ 1.482
1.79	c Restart #13 #Var: 169 LB: 0 @ 1.786
2.20	c Restart #14 #Var: 169 LB: 0 @ 2.19
2.54	c Restart #15 #Var: 169 LB: 0 @ 2.533
2.88	c Restart #16 #Var: 169 LB: 0 @ 2.869
3.43	c Restart #17 #Var: 169 LB: 0 @ 3.423
3.82	c Restart #18 #Var: 169 LB: 0 @ 3.811
4.30	c Restart #19 #Var: 169 LB: 0 @ 4.294
4.91	c Restart #20 #Var: 169 LB: 0 @ 4.904
5.50	c Restart #21 #Var: 169 LB: 0 @ 5.487
6.19	c Restart #22 #Var: 169 LB: 0 @ 6.181
7.00	c Restart #23 #Var: 169 LB: 0 @ 6.986
7.66	c Restart #24 #Var: 169 LB: 0 @ 7.655
8.50	c Restart #25 #Var: 169 LB: 0 @ 8.49
9.60	c Restart #26 #Var: 169 LB: 0 @ 9.587
10.89	c Restart #27 #Var: 169 LB: 0 @ 10.875
12.48	c Restart #28 #Var: 169 LB: 0 @ 12.461
13.55	c Restart #29 #Var: 169 LB: 0 @ 13.538
15.34	c Restart #30 #Var: 169 LB: 0 @ 15.325
17.11	c Restart #31 #Var: 169 LB: 0 @ 17.092
19.43	c Restart #32 #Var: 169 LB: 0 @ 19.419
21.57	c Restart #33 #Var: 169 LB: 0 @ 21.555
23.64	c Restart #34 #Var: 168 LB: 0 @ 23.623
26.21	c Restart #35 #Var: 167 LB: 0 @ 26.189
28.64	c Restart #36 #Var: 165 LB: 0 @ 28.622
31.33	c Restart #37 #Var: 165 LB: 0 @ 31.312
33.52	c Restart #38 #Var: 163 LB: 0 @ 33.496
36.26	c Restart #39 #Var: 163 LB: 0 @ 36.235
40.19	c Restart #40 #Var: 162 LB: 0 @ 40.162
45.52	c Restart #41 #Var: 162 LB: 0 @ 45.499
49.70	c Restart #42 #Var: 154 LB: 0 @ 49.675
54.25	c Restart #43 #Var: 141 LB: 0 @ 54.219
59.74	s UNSATISFIABLE
59.74	c Exit Code: 20
59.74	c Total time: 59.706 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/node78/watcher-39454-1149208785 -o ROOT/results/node78/solver-39454-1149208785 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node78/39454-1149208785/instance-39454-1149208785.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.90 0.91 0.89 2/67 30844
/proc/meminfo: memFree=1436600/2055892 swapFree=4085732/4096564
[pid=30844] ppid=30842 vsize=4672 CPUtime=0
/proc/30844/stat : 30844 (bsolo) R 30842 30844 30799 0 -1 0 155 0 0 0 0 0 0 0 20 0 1 0 185907359 4784128 136 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 11439000 0 0 4096 0 0 0 0 17 1 0 0
/proc/30844/statm: 1168 139 107 55 0 46 0

[startup+10.0023 s]
/proc/loadavg: 0.92 0.91 0.89 2/67 30844
/proc/meminfo: memFree=1390208/2055892 swapFree=4085732/4096564
[pid=30844] ppid=30842 vsize=50924 CPUtime=9.98
/proc/30844/stat : 30844 (bsolo) R 30842 30844 30799 0 -1 0 11985 0 0 0 988 10 0 0 25 0 1 0 185907359 52146176 11901 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30844/statm: 12731 11901 293 55 0 11622 0
Current children cumulated CPU time (s) 9.98
Current children cumulated vsize (Kb) 50924

[startup+20.0084 s]
/proc/loadavg: 0.93 0.91 0.89 2/67 30844
/proc/meminfo: memFree=1365120/2055892 swapFree=4085732/4096564
[pid=30844] ppid=30842 vsize=76008 CPUtime=19.98
/proc/30844/stat : 30844 (bsolo) R 30842 30844 30799 0 -1 0 18245 0 0 0 1981 17 0 0 25 0 1 0 185907359 77832192 18161 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30844/statm: 19002 18161 293 55 0 17893 0
Current children cumulated CPU time (s) 19.98
Current children cumulated vsize (Kb) 76008

[startup+30.0145 s]
/proc/loadavg: 0.94 0.91 0.89 2/67 30844
/proc/meminfo: memFree=1344192/2055892 swapFree=4085732/4096564
[pid=30844] ppid=30842 vsize=97028 CPUtime=29.98
/proc/30844/stat : 30844 (bsolo) R 30842 30844 30799 0 -1 0 23470 0 0 0 2977 21 0 0 25 0 1 0 185907359 99356672 23385 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 11905067 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30844/statm: 24257 23385 293 55 0 23148 0
Current children cumulated CPU time (s) 29.98
Current children cumulated vsize (Kb) 97028

[startup+40.0206 s]
/proc/loadavg: 0.95 0.92 0.89 2/67 30844
/proc/meminfo: memFree=1323904/2055892 swapFree=4085732/4096564
[pid=30844] ppid=30842 vsize=117372 CPUtime=39.99
/proc/30844/stat : 30844 (bsolo) R 30842 30844 30799 0 -1 0 28533 0 0 0 3972 27 0 0 25 0 1 0 185907359 120188928 28448 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 134534798 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30844/statm: 29343 28448 293 55 0 28234 0
Current children cumulated CPU time (s) 39.99
Current children cumulated vsize (Kb) 117372

[startup+50.0266 s]
/proc/loadavg: 0.96 0.92 0.90 2/67 30844
/proc/meminfo: memFree=1311488/2055892 swapFree=4085732/4096564
[pid=30844] ppid=30842 vsize=129680 CPUtime=49.99
/proc/30844/stat : 30844 (bsolo) R 30842 30844 30799 0 -1 0 31619 0 0 0 4969 30 0 0 25 0 1 0 185907359 132792320 31533 18446744073709551615 134512640 134738892 4294956688 18446744073709551615 4294960144 0 0 4096 16384 0 0 0 17 1 0 0
/proc/30844/statm: 32420 31533 293 55 0 31311 0
Current children cumulated CPU time (s) 49.99
Current children cumulated vsize (Kb) 129680

Child status: 20
Real time (s): 59.7623
CPU time (s): 59.7299
CPU user time (s): 59.364
CPU system time (s): 0.365944
CPU usage (%): 99.9459
Max. virtual memory (cumulated for all children) (Kb): 129680

Launcher Data (download as text)

Begin job on node78 on Fri Jun  2 00:39:45 UTC 2006


FILE ID= 39454-1149208785

PBS_JOBID= 293655

BENCH NAME= ROOT/tmp/node78/39454-1149208785/instance-39454-1149208785.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node78/39454-1149208785/instance-39454-1149208785.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node78/watcher-39454-1149208785 -o ROOT/results/node78/solver-39454-1149208785 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user10/bsolo ROOT/tmp/node78/39454-1149208785/instance-39454-1149208785.opb

MD5SUM SOLVER= 05cada221eb1efaaae980ebc7509e7e8
MD5SUM BENCH=  0df4a6220c19cfaf8dc35e55531bf2a0

RANDOM SEED= 360689325


/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		: 3000.225
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	: 6006.17
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		: 3000.225
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	: 5999.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055892 kB
MemFree:       1436936 kB
Buffers:         31700 kB
Cached:         514872 kB
SwapCached:       2596 kB
Active:         115772 kB
Inactive:       439660 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055892 kB
LowFree:       1436936 kB
SwapTotal:     4096564 kB
SwapFree:      4085732 kB
Dirty:             164 kB
Writeback:           0 kB
Mapped:          15112 kB
Slab:            50012 kB
Committed_AS:   175400 kB
PageTables:       1416 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264388 kB
VmallocChunk: 536606243 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node78 on Fri Jun  2 00:40:45 UTC 2006