Trace number 2682524

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 21.5077 21.5132

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111216411.opb
MD5SUM397157a6f828ea3df1ef5823bec1442b
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 benchmark0.12698
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 1200
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
21.39/21.49	c 19.467 7.92188 1041 112819
21.48/21.51	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-2682524-1277475669/watcher-2682524-1277475669 -o /tmp/evaluation-result-2682524-1277475669/solver-2682524-1277475669 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682524-1277475669.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: 0.52 0.14 0.04 3/106 29115
/proc/meminfo: memFree=1783056/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=3444 CPUtime=0
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 553 0 0 0 0 0 0 0 25 0 1 0 88862330 3526656 472 1992294400 134512640 136421960 4290501008 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 861 473 193 467 0 392 0

[startup+0.0790151 s]
/proc/loadavg: 0.52 0.14 0.04 3/106 29115
/proc/meminfo: memFree=1783056/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=7332 CPUtime=0.07
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 1538 0 0 0 7 0 0 0 25 0 1 0 88862330 7507968 1457 1992294400 134512640 136421960 4290501008 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 1833 1457 213 467 0 1364 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 7332

[startup+0.101016 s]
/proc/loadavg: 0.52 0.14 0.04 3/106 29115
/proc/meminfo: memFree=1783056/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=7332 CPUtime=0.09
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 1544 0 0 0 9 0 0 0 25 0 1 0 88862330 7507968 1463 1992294400 134512640 136421960 4290501008 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 1833 1463 213 467 0 1364 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7332

[startup+0.301028 s]
/proc/loadavg: 0.52 0.14 0.04 3/106 29115
/proc/meminfo: memFree=1783056/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=7588 CPUtime=0.29
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 1603 0 0 0 26 3 0 0 25 0 1 0 88862330 7770112 1522 1992294400 134512640 136421960 4290501008 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 1897 1522 213 467 0 1428 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7588

[startup+0.701053 s]
/proc/loadavg: 0.52 0.14 0.04 3/106 29115
/proc/meminfo: memFree=1783056/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=7588 CPUtime=0.69
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 1615 0 0 0 62 7 0 0 25 0 1 0 88862330 7770112 1534 1992294400 134512640 136421960 4290501008 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 1897 1534 213 467 0 1428 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7588

[startup+1.5011 s]
/proc/loadavg: 0.52 0.14 0.04 2/107 29116
/proc/meminfo: memFree=1777592/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=7724 CPUtime=1.49
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 1633 0 0 0 134 15 0 0 25 0 1 0 88862330 7909376 1552 1992294400 134512640 136421960 4290501008 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 1931 1552 213 467 0 1462 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7724

[startup+3.1012 s]
/proc/loadavg: 0.52 0.14 0.04 2/107 29116
/proc/meminfo: memFree=1777344/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=7852 CPUtime=3.09
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 1666 0 0 0 279 30 0 0 25 0 1 0 88862330 8040448 1585 1992294400 134512640 136421960 4290501008 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 1963 1585 213 467 0 1494 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7852

[startup+6.3014 s]
/proc/loadavg: 0.56 0.15 0.05 2/107 29116
/proc/meminfo: memFree=1777096/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=7980 CPUtime=6.29
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 1694 0 0 0 566 63 0 0 25 0 1 0 88862330 8171520 1613 1992294400 134512640 136421960 4290501008 18446744073709551615 135686965 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 1995 1613 213 467 0 1526 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7980

[startup+12.7008 s]
/proc/loadavg: 0.59 0.16 0.05 2/107 29116
/proc/meminfo: memFree=1776972/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=8108 CPUtime=12.69
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 1734 0 0 0 1144 125 0 0 25 0 1 0 88862330 8302592 1653 1992294400 134512640 136421960 4290501008 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 2027 1653 213 467 0 1558 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8108

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

[startup+15.901 s]
/proc/loadavg: 0.62 0.18 0.06 2/107 29116
/proc/meminfo: memFree=1776972/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=8108 CPUtime=15.89
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 1734 0 0 0 1435 154 0 0 25 0 1 0 88862330 8302592 1653 1992294400 134512640 136421960 4290501008 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 2027 1653 213 467 0 1558 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 8108

[startup+19.1012 s]
/proc/loadavg: 0.65 0.19 0.06 2/107 29116
/proc/meminfo: memFree=1776972/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=8108 CPUtime=19.09
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 1736 0 0 0 1727 182 0 0 25 0 1 0 88862330 8302592 1655 1992294400 134512640 136421960 4290501008 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 2027 1655 213 467 0 1558 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 8108

[startup+20.7013 s]
/proc/loadavg: 0.65 0.19 0.06 2/107 29116
/proc/meminfo: memFree=1776972/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=8108 CPUtime=20.68
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 1736 0 0 0 1873 195 0 0 25 0 1 0 88862330 8302592 1655 1992294400 134512640 136421960 4290501008 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 2027 1655 213 467 0 1558 0
Current children cumulated CPU time (s) 20.68
Current children cumulated vsize (KiB) 8108

[startup+21.1003 s]
/proc/loadavg: 0.65 0.19 0.06 2/107 29116
/proc/meminfo: memFree=1776972/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=8108 CPUtime=21.08
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 1736 0 0 0 1910 198 0 0 25 0 1 0 88862330 8302592 1655 1992294400 134512640 136421960 4290501008 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 2027 1655 213 467 0 1558 0
Current children cumulated CPU time (s) 21.08
Current children cumulated vsize (KiB) 8108

[startup+21.5003 s]
/proc/loadavg: 0.65 0.19 0.06 2/107 29116
/proc/meminfo: memFree=1776972/2059040 swapFree=4139096/4192956
[pid=29115] ppid=29113 vsize=7588 CPUtime=21.48
/proc/29115/stat : 29115 (pbct) R 29113 29115 29007 0 -1 4202496 1761 0 0 0 1946 202 0 0 25 0 1 0 88862330 7770112 1549 1992294400 134512640 136421960 4290501008 18446744073709551615 134710272 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/29115/statm: 1897 1549 237 467 0 1428 0
Current children cumulated CPU time (s) 21.48
Current children cumulated vsize (KiB) 7588

Child status: 0
Real time (s): 21.5132
CPU time (s): 21.5077
CPU user time (s): 19.481
CPU system time (s): 2.02669
CPU usage (%): 99.9743
Max. virtual memory (cumulated for all children) (KiB): 8108

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.481
system time used= 2.02669
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1762
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= 245

runsolver used 0.038994 second user time and 0.107983 second system time

The end

Launcher Data 

Begin job on node029 at 2010-06-25 16:21:09
IDJOB=2682524
IDBENCH=1262
IDSOLVER=1192
FILE ID=node029/2682524-1277475669
PBS_JOBID= 11190514
Free space on /tmp= 62480 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111216411.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682524-1277475669/watcher-2682524-1277475669 -o /tmp/evaluation-result-2682524-1277475669/solver-2682524-1277475669 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682524-1277475669.opb

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

MD5SUM BENCH= 397157a6f828ea3df1ef5823bec1442b
RANDOM SEED=1807460107

node029.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		: 3000.221
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	: 6000.44
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		: 3000.221
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1783576 kB
Buffers:         63180 kB
Cached:         112560 kB
SwapCached:       7392 kB
Active:          69788 kB
Inactive:       120736 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1783576 kB
SwapTotal:     4192956 kB
SwapFree:      4139096 kB
Dirty:            2124 kB
Writeback:           0 kB
AnonPages:       12288 kB
Mapped:          11944 kB
Slab:            62956 kB
PageTables:       4196 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182296 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= 62480 MiB
End job on node029 at 2010-06-25 16:21:31