Trace number 2668851

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 0.1UNSAT 16.3405 16.3436

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111219348.opb
MD5SUM33ddab1c7704f894e7f63014edbb9b9e
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 benchmark0.178972
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 1212
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 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
16.28/16.32	c 14.7658 7.98438 532 85700
16.28/16.34	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-2668851-1276432048/watcher-2668851-1276432048 -o /tmp/evaluation-result-2668851-1276432048/solver-2668851-1276432048 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668851-1276432048.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: 1.03 1.11 1.05 3/106 22662
/proc/meminfo: memFree=1829244/2059040 swapFree=4136640/4192956
[pid=22662] ppid=22660 vsize=3384 CPUtime=0
/proc/22662/stat : 22662 (pbct) R 22660 22662 21382 0 -1 4202496 544 0 0 0 0 0 0 0 20 0 1 0 16860245 3465216 467 1992294400 134512640 136485738 4293933584 18446744073709551615 135260256 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22662/statm: 846 469 196 482 0 362 0

[startup+0.054412 s]
/proc/loadavg: 1.03 1.11 1.05 3/106 22662
/proc/meminfo: memFree=1829244/2059040 swapFree=4136640/4192956
[pid=22662] ppid=22660 vsize=7136 CPUtime=0.04
/proc/22662/stat : 22662 (pbct) R 22660 22662 21382 0 -1 4202496 1450 0 0 0 4 0 0 0 20 0 1 0 16860245 7307264 1373 1992294400 134512640 136485738 4293933584 18446744073709551615 134907230 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22662/statm: 1784 1373 208 482 0 1300 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 7136

[startup+0.100414 s]
/proc/loadavg: 1.03 1.11 1.05 3/106 22662
/proc/meminfo: memFree=1829244/2059040 swapFree=4136640/4192956
[pid=22662] ppid=22660 vsize=7400 CPUtime=0.09
/proc/22662/stat : 22662 (pbct) R 22660 22662 21382 0 -1 4202496 1551 0 0 0 8 1 0 0 20 0 1 0 16860245 7577600 1474 1992294400 134512640 136485738 4293933584 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22662/statm: 1850 1474 223 482 0 1366 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7400

[startup+0.300431 s]
/proc/loadavg: 1.03 1.11 1.05 3/106 22662
/proc/meminfo: memFree=1829244/2059040 swapFree=4136640/4192956
[pid=22662] ppid=22660 vsize=7528 CPUtime=0.29
/proc/22662/stat : 22662 (pbct) R 22660 22662 21382 0 -1 4202496 1587 0 0 0 26 3 0 0 20 0 1 0 16860245 7708672 1510 1992294400 134512640 136485738 4293933584 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22662/statm: 1882 1510 223 482 0 1398 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7528

[startup+0.700462 s]
/proc/loadavg: 1.03 1.11 1.05 3/106 22662
/proc/meminfo: memFree=1829244/2059040 swapFree=4136640/4192956
[pid=22662] ppid=22660 vsize=7656 CPUtime=0.69
/proc/22662/stat : 22662 (pbct) R 22660 22662 21382 0 -1 4202496 1616 0 0 0 63 6 0 0 20 0 1 0 16860245 7839744 1539 1992294400 134512640 136485738 4293933584 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22662/statm: 1914 1539 223 482 0 1430 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7656

[startup+1.50053 s]
/proc/loadavg: 1.03 1.11 1.05 2/107 22663
/proc/meminfo: memFree=1823780/2059040 swapFree=4136640/4192956
[pid=22662] ppid=22660 vsize=7784 CPUtime=1.49
/proc/22662/stat : 22662 (pbct) R 22660 22662 21382 0 -1 4202496 1657 0 0 0 136 13 0 0 23 0 1 0 16860245 7970816 1580 1992294400 134512640 136485738 4293933584 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22662/statm: 1946 1580 223 482 0 1462 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7784

[startup+3.10065 s]
/proc/loadavg: 1.03 1.11 1.05 2/107 22663
/proc/meminfo: memFree=1823532/2059040 swapFree=4136640/4192956
[pid=22662] ppid=22660 vsize=7912 CPUtime=3.09
/proc/22662/stat : 22662 (pbct) R 22660 22662 21382 0 -1 4202496 1679 0 0 0 279 30 0 0 25 0 1 0 16860245 8101888 1602 1992294400 134512640 136485738 4293933584 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22662/statm: 1978 1602 223 482 0 1494 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7912

[startup+6.30191 s]
/proc/loadavg: 1.03 1.11 1.05 2/107 22665
/proc/meminfo: memFree=1823160/2059040 swapFree=4136640/4192956
[pid=22662] ppid=22660 vsize=8044 CPUtime=6.29
/proc/22662/stat : 22662 (pbct) R 22660 22662 21382 0 -1 4202496 1707 0 0 0 570 59 0 0 25 0 1 0 16860245 8237056 1630 1992294400 134512640 136485738 4293933584 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22662/statm: 2011 1630 223 482 0 1527 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8044

[startup+12.7014 s]
/proc/loadavg: 1.03 1.11 1.05 2/107 22665
/proc/meminfo: memFree=1822912/2059040 swapFree=4136640/4192956
[pid=22662] ppid=22660 vsize=8172 CPUtime=12.69
/proc/22662/stat : 22662 (pbct) R 22660 22662 21382 0 -1 4202496 1734 0 0 0 1147 122 0 0 25 0 1 0 16860245 8368128 1657 1992294400 134512640 136485738 4293933584 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22662/statm: 2043 1657 223 482 0 1559 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8172

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

[startup+14.3085 s]
/proc/loadavg: 1.03 1.11 1.05 2/107 22665
/proc/meminfo: memFree=1822912/2059040 swapFree=4136640/4192956
[pid=22662] ppid=22660 vsize=8172 CPUtime=14.3
/proc/22662/stat : 22662 (pbct) R 22660 22662 21382 0 -1 4202496 1734 0 0 0 1293 137 0 0 25 0 1 0 16860245 8368128 1657 1992294400 134512640 136485738 4293933584 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22662/statm: 2043 1657 223 482 0 1559 0
Current children cumulated CPU time (s) 14.3
Current children cumulated vsize (KiB) 8172

[startup+15.1016 s]
/proc/loadavg: 1.03 1.11 1.05 2/107 22665
/proc/meminfo: memFree=1822912/2059040 swapFree=4136640/4192956
[pid=22662] ppid=22660 vsize=8172 CPUtime=15.09
/proc/22662/stat : 22662 (pbct) R 22660 22662 21382 0 -1 4202496 1734 0 0 0 1365 144 0 0 25 0 1 0 16860245 8368128 1657 1992294400 134512640 136485738 4293933584 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22662/statm: 2043 1657 223 482 0 1559 0
Current children cumulated CPU time (s) 15.09
Current children cumulated vsize (KiB) 8172

[startup+15.9007 s]
/proc/loadavg: 1.03 1.11 1.05 2/107 22665
/proc/meminfo: memFree=1822912/2059040 swapFree=4136640/4192956
[pid=22662] ppid=22660 vsize=8172 CPUtime=15.89
/proc/22662/stat : 22662 (pbct) R 22660 22662 21382 0 -1 4202496 1734 0 0 0 1438 151 0 0 25 0 1 0 16860245 8368128 1657 1992294400 134512640 136485738 4293933584 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22662/statm: 2043 1657 223 482 0 1559 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 8172

[startup+16.3007 s]
/proc/loadavg: 1.03 1.11 1.05 2/107 22665
/proc/meminfo: memFree=1822912/2059040 swapFree=4136640/4192956
[pid=22662] ppid=22660 vsize=8172 CPUtime=16.28
/proc/22662/stat : 22662 (pbct) R 22660 22662 21382 0 -1 4202496 1734 0 0 0 1473 155 0 0 25 0 1 0 16860245 8368128 1657 1992294400 134512640 136485738 4293933584 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22662/statm: 2043 1657 223 482 0 1559 0
Current children cumulated CPU time (s) 16.28
Current children cumulated vsize (KiB) 8172

Child status: 0
Real time (s): 16.3436
CPU time (s): 16.3405
CPU user time (s): 14.7788
CPU system time (s): 1.56176
CPU usage (%): 99.9809
Max. virtual memory (cumulated for all children) (KiB): 8172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 14.7788
system time used= 1.56176
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1758
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= 25

runsolver used 0.042993 second user time and 0.075988 second system time

The end

Launcher Data 

Begin job on node026 at 2010-06-13 14:27:28
IDJOB=2668851
IDBENCH=1183
IDSOLVER=1170
FILE ID=node026/2668851-1276432048
PBS_JOBID= 11173300
Free space on /tmp= 62508 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111219348.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668851-1276432048/watcher-2668851-1276432048 -o /tmp/evaluation-result-2668851-1276432048/solver-2668851-1276432048 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668851-1276432048.opb

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

MD5SUM BENCH= 33ddab1c7704f894e7f63014edbb9b9e
RANDOM SEED=1431848434

node026.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		: 3000.201
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	: 6000.40
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		: 3000.201
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:       1829772 kB
Buffers:         29260 kB
Cached:         123052 kB
SwapCached:       9428 kB
Active:         100412 kB
Inactive:        64288 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1829772 kB
SwapTotal:     4192956 kB
SwapFree:      4136640 kB
Dirty:            2104 kB
Writeback:           0 kB
AnonPages:       10916 kB
Mapped:           9208 kB
Slab:            42808 kB
PageTables:       4036 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179868 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 node026 at 2010-06-13 14:27:45