Trace number 2668877

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 13.7749 13.78

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110976935.opb
MD5SUM09a2a97c88821c18a87bc8c5a7b2e947
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 benchmark0.033994
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 

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
13.68/13.76	c 12.4161 7.98438 2065 74536
13.68/13.77	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-2668877-1276432174/watcher-2668877-1276432174 -o /tmp/evaluation-result-2668877-1276432174/solver-2668877-1276432174 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668877-1276432174.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: 0.98 0.97 0.99 3/106 22173
/proc/meminfo: memFree=1821464/2059040 swapFree=4140388/4192956
[pid=22173] ppid=22171 vsize=3384 CPUtime=0
/proc/22173/stat : 22173 (pbct) R 22171 22173 21007 0 -1 4202496 525 0 0 0 0 0 0 0 23 0 1 0 18821279 3465216 448 1992294400 134512640 136485738 4292592288 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22173/statm: 846 452 190 482 0 362 0

[startup+0.043011 s]
/proc/loadavg: 0.98 0.97 0.99 3/106 22173
/proc/meminfo: memFree=1821464/2059040 swapFree=4140388/4192956
[pid=22173] ppid=22171 vsize=6136 CPUtime=0.03
/proc/22173/stat : 22173 (pbct) R 22171 22173 21007 0 -1 4202496 1245 0 0 0 3 0 0 0 23 0 1 0 18821279 6283264 1168 1992294400 134512640 136485738 4292592288 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22173/statm: 1567 1172 197 482 0 1083 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 6136

[startup+0.102016 s]
/proc/loadavg: 0.98 0.97 0.99 3/106 22173
/proc/meminfo: memFree=1821464/2059040 swapFree=4140388/4192956
[pid=22173] ppid=22171 vsize=7404 CPUtime=0.09
/proc/22173/stat : 22173 (pbct) R 22171 22173 21007 0 -1 4202496 1551 0 0 0 9 0 0 0 23 0 1 0 18821279 7581696 1473 1992294400 134512640 136485738 4292592288 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22173/statm: 1851 1473 223 482 0 1367 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7404

[startup+0.301035 s]
/proc/loadavg: 0.98 0.97 0.99 3/106 22173
/proc/meminfo: memFree=1821464/2059040 swapFree=4140388/4192956
[pid=22173] ppid=22171 vsize=7532 CPUtime=0.29
/proc/22173/stat : 22173 (pbct) R 22171 22173 21007 0 -1 4202496 1594 0 0 0 27 2 0 0 23 0 1 0 18821279 7712768 1516 1992294400 134512640 136485738 4292592288 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22173/statm: 1883 1516 223 482 0 1399 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7532

[startup+0.701072 s]
/proc/loadavg: 0.98 0.97 0.99 3/106 22173
/proc/meminfo: memFree=1821464/2059040 swapFree=4140388/4192956
[pid=22173] ppid=22171 vsize=7660 CPUtime=0.69
/proc/22173/stat : 22173 (pbct) R 22171 22173 21007 0 -1 4202496 1611 0 0 0 62 7 0 0 25 0 1 0 18821279 7843840 1533 1992294400 134512640 136485738 4292592288 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22173/statm: 1915 1533 223 482 0 1431 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7660

[startup+1.50015 s]
/proc/loadavg: 0.98 0.97 0.99 2/107 22174
/proc/meminfo: memFree=1816000/2059040 swapFree=4140388/4192956
[pid=22173] ppid=22171 vsize=7788 CPUtime=1.49
/proc/22173/stat : 22173 (pbct) R 22171 22173 21007 0 -1 4202496 1641 0 0 0 134 15 0 0 25 0 1 0 18821279 7974912 1563 1992294400 134512640 136485738 4292592288 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22173/statm: 1947 1563 223 482 0 1463 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7788

[startup+3.1013 s]
/proc/loadavg: 0.98 0.97 0.99 2/107 22174
/proc/meminfo: memFree=1815752/2059040 swapFree=4140388/4192956
[pid=22173] ppid=22171 vsize=7920 CPUtime=3.09
/proc/22173/stat : 22173 (pbct) R 22171 22173 21007 0 -1 4202496 1668 0 0 0 278 31 0 0 25 0 1 0 18821279 8110080 1590 1992294400 134512640 136485738 4292592288 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22173/statm: 1980 1590 223 482 0 1496 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7920

[startup+6.30161 s]
/proc/loadavg: 0.98 0.97 0.99 2/107 22174
/proc/meminfo: memFree=1815504/2059040 swapFree=4140388/4192956
[pid=22173] ppid=22171 vsize=7920 CPUtime=6.29
/proc/22173/stat : 22173 (pbct) R 22171 22173 21007 0 -1 4202496 1691 0 0 0 568 61 0 0 25 0 1 0 18821279 8110080 1613 1992294400 134512640 136485738 4292592288 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22173/statm: 1980 1613 223 482 0 1496 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7920

[startup+12.7012 s]
/proc/loadavg: 0.98 0.97 0.99 2/107 22174
/proc/meminfo: memFree=1815256/2059040 swapFree=4140388/4192956
[pid=22173] ppid=22171 vsize=8172 CPUtime=12.68
/proc/22173/stat : 22173 (pbct) R 22171 22173 21007 0 -1 4202496 1725 0 0 0 1144 124 0 0 25 0 1 0 18821279 8368128 1647 1992294400 134512640 136485738 4292592288 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22173/statm: 2043 1647 223 482 0 1559 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 8172

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

[startup+13.5013 s]
/proc/loadavg: 0.98 0.97 0.99 2/107 22174
/proc/meminfo: memFree=1815256/2059040 swapFree=4140388/4192956
[pid=22173] ppid=22171 vsize=8172 CPUtime=13.49
/proc/22173/stat : 22173 (pbct) R 22171 22173 21007 0 -1 4202496 1729 0 0 0 1218 131 0 0 25 0 1 0 18821279 8368128 1651 1992294400 134512640 136485738 4292592288 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22173/statm: 2043 1651 223 482 0 1559 0
Current children cumulated CPU time (s) 13.49
Current children cumulated vsize (KiB) 8172

[startup+13.7013 s]
/proc/loadavg: 0.98 0.97 0.99 2/107 22174
/proc/meminfo: memFree=1815256/2059040 swapFree=4140388/4192956
[pid=22173] ppid=22171 vsize=8172 CPUtime=13.68
/proc/22173/stat : 22173 (pbct) R 22171 22173 21007 0 -1 4202496 1729 0 0 0 1235 133 0 0 25 0 1 0 18821279 8368128 1651 1992294400 134512640 136485738 4292592288 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22173/statm: 2043 1651 223 482 0 1559 0
Current children cumulated CPU time (s) 13.68
Current children cumulated vsize (KiB) 8172

Child status: 0
Real time (s): 13.78
CPU time (s): 13.7749
CPU user time (s): 12.4291
CPU system time (s): 1.3458
CPU usage (%): 99.9629
Max. virtual memory (cumulated for all children) (KiB): 8172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 12.4291
system time used= 1.34579
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1753
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= 2
involuntary context switches= 59

runsolver used 0.018997 second user time and 0.077988 second system time

The end

Launcher Data 

Begin job on node004 at 2010-06-13 14:29:34
IDJOB=2668877
IDBENCH=1209
IDSOLVER=1170
FILE ID=node004/2668877-1276432174
PBS_JOBID= 11173308
Free space on /tmp= 62536 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110976935.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668877-1276432174/watcher-2668877-1276432174 -o /tmp/evaluation-result-2668877-1276432174/solver-2668877-1276432174 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668877-1276432174.opb

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

MD5SUM BENCH= 09a2a97c88821c18a87bc8c5a7b2e947
RANDOM SEED=1396633730

node004.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		: 3000.210
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	: 6000.42
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		: 3000.210
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	: 5599.47
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1821868 kB
Buffers:         31744 kB
Cached:         126656 kB
SwapCached:       6528 kB
Active:          93740 kB
Inactive:        78092 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1821868 kB
SwapTotal:     4192956 kB
SwapFree:      4140388 kB
Dirty:            2172 kB
Writeback:           0 kB
AnonPages:       11328 kB
Mapped:          12904 kB
Slab:            43556 kB
PageTables:       3912 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180876 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= 62536 MiB
End job on node004 at 2010-06-13 14:29:48