Trace number 2682454

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
PB/CT 0.1 fixedUNSAT 17.7203 17.7238

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111227861.opb
MD5SUMf8885c48feecc92113d832d46f576991
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
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 benchmark0.064989
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 1265
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 

0.00/0.00	c PB/CT 0.1.1 http://www.residual.se/pbct
0.00/0.00	c Based on OpenSMT/CT 20091015
0.00/0.00	c constraints 71/0 clauses 30/0 units 0
0.00/0.00	c vars 169
17.68/17.71	c 15.9536 7.79688 900 92048
17.68/17.72	s UNSATISFIABLE

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2682454-1277475631/watcher-2682454-1277475631 -o /tmp/evaluation-result-2682454-1277475631/solver-2682454-1277475631 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682454-1277475631.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.08 0.02 0.01 3/106 28756
/proc/meminfo: memFree=1827136/2059040 swapFree=4140428/4192956
[pid=28756] ppid=28754 vsize=3444 CPUtime=0
/proc/28756/stat : 28756 (pbct) R 28754 28756 28704 0 -1 4202496 558 0 0 0 0 0 0 0 19 0 1 0 88855274 3526656 478 1992294400 134512640 136421960 4292143984 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28756/statm: 861 479 193 467 0 392 0

[startup+0.0222679 s]
/proc/loadavg: 0.08 0.02 0.01 3/106 28756
/proc/meminfo: memFree=1827136/2059040 swapFree=4140428/4192956
[pid=28756] ppid=28754 vsize=4492 CPUtime=0.01
/proc/28756/stat : 28756 (pbct) R 28754 28756 28704 0 -1 4202496 824 0 0 0 1 0 0 0 19 0 1 0 88855274 4599808 744 1992294400 134512640 136421960 4292143984 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28756/statm: 1123 746 193 467 0 654 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 4492

[startup+0.101277 s]
/proc/loadavg: 0.08 0.02 0.01 3/106 28756
/proc/meminfo: memFree=1827136/2059040 swapFree=4140428/4192956
[pid=28756] ppid=28754 vsize=7336 CPUtime=0.09
/proc/28756/stat : 28756 (pbct) R 28754 28756 28704 0 -1 4202496 1537 0 0 0 9 0 0 0 19 0 1 0 88855274 7512064 1457 1992294400 134512640 136421960 4292143984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28756/statm: 1834 1457 213 467 0 1365 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7336

[startup+0.301297 s]
/proc/loadavg: 0.08 0.02 0.01 3/106 28756
/proc/meminfo: memFree=1827136/2059040 swapFree=4140428/4192956
[pid=28756] ppid=28754 vsize=7464 CPUtime=0.29
/proc/28756/stat : 28756 (pbct) R 28754 28756 28704 0 -1 4202496 1572 0 0 0 26 3 0 0 19 0 1 0 88855274 7643136 1492 1992294400 134512640 136421960 4292143984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28756/statm: 1866 1492 213 467 0 1397 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7464

[startup+0.701338 s]
/proc/loadavg: 0.08 0.02 0.01 3/106 28756
/proc/meminfo: memFree=1827136/2059040 swapFree=4140428/4192956
[pid=28756] ppid=28754 vsize=7596 CPUtime=0.7
/proc/28756/stat : 28756 (pbct) R 28754 28756 28704 0 -1 4202496 1599 0 0 0 63 7 0 0 19 0 1 0 88855274 7778304 1519 1992294400 134512640 136421960 4292143984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28756/statm: 1899 1519 213 467 0 1430 0
Current children cumulated CPU time (s) 0.7
Current children cumulated vsize (KiB) 7596

[startup+1.50142 s]
/proc/loadavg: 0.08 0.02 0.01 2/107 28757
/proc/meminfo: memFree=1821796/2059040 swapFree=4140428/4192956
[pid=28756] ppid=28754 vsize=7724 CPUtime=1.49
/proc/28756/stat : 28756 (pbct) R 28754 28756 28704 0 -1 4202496 1627 0 0 0 134 15 0 0 21 0 1 0 88855274 7909376 1547 1992294400 134512640 136421960 4292143984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28756/statm: 1931 1547 213 467 0 1462 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7724

[startup+3.10158 s]
/proc/loadavg: 0.08 0.02 0.01 2/107 28759
/proc/meminfo: memFree=1821548/2059040 swapFree=4140428/4192956
[pid=28756] ppid=28754 vsize=7852 CPUtime=3.09
/proc/28756/stat : 28756 (pbct) R 28754 28756 28704 0 -1 4202496 1660 0 0 0 278 31 0 0 25 0 1 0 88855274 8040448 1580 1992294400 134512640 136421960 4292143984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28756/statm: 1963 1580 213 467 0 1494 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7852

[startup+6.30191 s]
/proc/loadavg: 0.15 0.03 0.01 2/107 28759
/proc/meminfo: memFree=1821300/2059040 swapFree=4140428/4192956
[pid=28756] ppid=28754 vsize=7852 CPUtime=6.29
/proc/28756/stat : 28756 (pbct) R 28754 28756 28704 0 -1 4202496 1681 0 0 0 567 62 0 0 25 0 1 0 88855274 8040448 1601 1992294400 134512640 136421960 4292143984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28756/statm: 1963 1601 213 467 0 1494 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7852

[startup+12.7016 s]
/proc/loadavg: 0.22 0.05 0.02 2/107 28759
/proc/meminfo: memFree=1821052/2059040 swapFree=4140428/4192956
[pid=28756] ppid=28754 vsize=7980 CPUtime=12.69
/proc/28756/stat : 28756 (pbct) R 28754 28756 28704 0 -1 4202496 1712 0 0 0 1141 128 0 0 25 0 1 0 88855274 8171520 1632 1992294400 134512640 136421960 4292143984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28756/statm: 1995 1632 213 467 0 1526 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 7980

Solver just ended. Dumping a history of the last processes samples

[startup+15.9009 s]
/proc/loadavg: 0.28 0.06 0.02 2/107 28759
/proc/meminfo: memFree=1821052/2059040 swapFree=4140428/4192956
[pid=28756] ppid=28754 vsize=7980 CPUtime=15.88
/proc/28756/stat : 28756 (pbct) R 28754 28756 28704 0 -1 4202496 1712 0 0 0 1431 157 0 0 25 0 1 0 88855274 8171520 1632 1992294400 134512640 136421960 4292143984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28756/statm: 1995 1632 213 467 0 1526 0
Current children cumulated CPU time (s) 15.88
Current children cumulated vsize (KiB) 7980

[startup+16.701 s]
/proc/loadavg: 0.28 0.06 0.02 2/107 28759
/proc/meminfo: memFree=1821052/2059040 swapFree=4140428/4192956
[pid=28756] ppid=28754 vsize=7980 CPUtime=16.69
/proc/28756/stat : 28756 (pbct) R 28754 28756 28704 0 -1 4202496 1712 0 0 0 1504 165 0 0 25 0 1 0 88855274 8171520 1632 1992294400 134512640 136421960 4292143984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28756/statm: 1995 1632 213 467 0 1526 0
Current children cumulated CPU time (s) 16.69
Current children cumulated vsize (KiB) 7980

[startup+17.501 s]
/proc/loadavg: 0.28 0.06 0.02 2/107 28759
/proc/meminfo: memFree=1821052/2059040 swapFree=4140428/4192956
[pid=28756] ppid=28754 vsize=7980 CPUtime=17.5
/proc/28756/stat : 28756 (pbct) R 28754 28756 28704 0 -1 4202496 1712 0 0 0 1577 173 0 0 25 0 1 0 88855274 8171520 1632 1992294400 134512640 136421960 4292143984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28756/statm: 1995 1632 213 467 0 1526 0
Current children cumulated CPU time (s) 17.5
Current children cumulated vsize (KiB) 7980

[startup+17.7012 s]
/proc/loadavg: 0.28 0.06 0.02 2/107 28759
/proc/meminfo: memFree=1821052/2059040 swapFree=4140428/4192956
[pid=28756] ppid=28754 vsize=7980 CPUtime=17.68
/proc/28756/stat : 28756 (pbct) R 28754 28756 28704 0 -1 4202496 1712 0 0 0 1594 174 0 0 25 0 1 0 88855274 8171520 1632 1992294400 134512640 136421960 4292143984 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/28756/statm: 1995 1632 213 467 0 1526 0
Current children cumulated CPU time (s) 17.68
Current children cumulated vsize (KiB) 7980

Child status: 0
Real time (s): 17.7238
CPU time (s): 17.7203
CPU user time (s): 15.9666
CPU system time (s): 1.75373
CPU usage (%): 99.9802
Max. virtual memory (cumulated for all children) (KiB): 7980

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.9666
system time used= 1.75373
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1738
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1
involuntary context switches= 48

runsolver used 0.024996 second user time and 0.098984 second system time

The end

Launcher Data 

Begin job on node045 at 2010-06-25 16:20:31
IDJOB=2682454
IDBENCH=1192
IDSOLVER=1192
FILE ID=node045/2682454-1277475631
PBS_JOBID= 11190500
Free space on /tmp= 62508 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111227861.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682454-1277475631/watcher-2682454-1277475631 -o /tmp/evaluation-result-2682454-1277475631/solver-2682454-1277475631 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682454-1277475631.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= f8885c48feecc92113d832d46f576991
RANDOM SEED=311138476

node045.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.247
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.49
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		: 3000.247
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.43
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1827664 kB
Buffers:         42924 kB
Cached:          86648 kB
SwapCached:       5348 kB
Active:          63556 kB
Inactive:        78892 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1827664 kB
SwapTotal:     4192956 kB
SwapFree:      4140428 kB
Dirty:            2164 kB
Writeback:           0 kB
AnonPages:       11484 kB
Mapped:          11984 kB
Slab:            67028 kB
PageTables:       4188 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182332 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62508 MiB
End job on node045 at 2010-06-25 16:20:49