Trace number 2668892

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 15.3507 15.3537

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111226680.opb
MD5SUM35d60df2826d5cfd1cfef4e444dfafed
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 benchmark0.140978
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 1190
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
15.30/15.33	c 13.8269 7.86328 374 81320
15.30/15.35	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-2668892-1276432227/watcher-2668892-1276432227 -o /tmp/evaluation-result-2668892-1276432227/solver-2668892-1276432227 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668892-1276432227.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: 0.99 1.04 1.03 3/106 22965
/proc/meminfo: memFree=1828252/2059040 swapFree=4136640/4192956
[pid=22965] ppid=22963 vsize=3384 CPUtime=0
/proc/22965/stat : 22965 (pbct) R 22963 22965 21382 0 -1 4202496 531 0 0 0 0 0 0 0 17 0 1 0 16878105 3465216 454 1992294400 134512640 136485738 4290824592 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22965/statm: 846 456 190 482 0 362 0

[startup+0.0573671 s]
/proc/loadavg: 0.99 1.04 1.03 3/106 22965
/proc/meminfo: memFree=1828252/2059040 swapFree=4136640/4192956
[pid=22965] ppid=22963 vsize=7144 CPUtime=0.05
/proc/22965/stat : 22965 (pbct) R 22963 22965 21382 0 -1 4202496 1477 0 0 0 5 0 0 0 17 0 1 0 16878105 7315456 1400 1992294400 134512640 136485738 4290824592 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22965/statm: 1786 1401 214 482 0 1302 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 7144

[startup+0.10037 s]
/proc/loadavg: 0.99 1.04 1.03 3/106 22965
/proc/meminfo: memFree=1828252/2059040 swapFree=4136640/4192956
[pid=22965] ppid=22963 vsize=7408 CPUtime=0.09
/proc/22965/stat : 22965 (pbct) R 22963 22965 21382 0 -1 4202496 1547 0 0 0 9 0 0 0 17 0 1 0 16878105 7585792 1470 1992294400 134512640 136485738 4290824592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22965/statm: 1852 1470 223 482 0 1368 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7408

[startup+0.300386 s]
/proc/loadavg: 0.99 1.04 1.03 3/106 22965
/proc/meminfo: memFree=1828252/2059040 swapFree=4136640/4192956
[pid=22965] ppid=22963 vsize=7536 CPUtime=0.29
/proc/22965/stat : 22965 (pbct) R 22963 22965 21382 0 -1 4202496 1589 0 0 0 27 2 0 0 17 0 1 0 16878105 7716864 1512 1992294400 134512640 136485738 4290824592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22965/statm: 1884 1512 223 482 0 1400 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7536

[startup+0.700417 s]
/proc/loadavg: 0.99 1.04 1.03 3/106 22965
/proc/meminfo: memFree=1828252/2059040 swapFree=4136640/4192956
[pid=22965] ppid=22963 vsize=7664 CPUtime=0.69
/proc/22965/stat : 22965 (pbct) R 22963 22965 21382 0 -1 4202496 1618 0 0 0 63 6 0 0 17 0 1 0 16878105 7847936 1541 1992294400 134512640 136485738 4290824592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22965/statm: 1916 1541 223 482 0 1432 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7664

[startup+1.50048 s]
/proc/loadavg: 0.99 1.04 1.03 2/107 22966
/proc/meminfo: memFree=1822788/2059040 swapFree=4136640/4192956
[pid=22965] ppid=22963 vsize=7792 CPUtime=1.49
/proc/22965/stat : 22965 (pbct) R 22963 22965 21382 0 -1 4202496 1642 0 0 0 136 13 0 0 18 0 1 0 16878105 7979008 1565 1992294400 134512640 136485738 4290824592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22965/statm: 1948 1565 223 482 0 1464 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7792

[startup+3.10061 s]
/proc/loadavg: 0.99 1.04 1.03 2/107 22966
/proc/meminfo: memFree=1822664/2059040 swapFree=4136640/4192956
[pid=22965] ppid=22963 vsize=7920 CPUtime=3.09
/proc/22965/stat : 22965 (pbct) R 22963 22965 21382 0 -1 4202496 1670 0 0 0 282 27 0 0 21 0 1 0 16878105 8110080 1593 1992294400 134512640 136485738 4290824592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22965/statm: 1980 1593 223 482 0 1496 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7920

[startup+6.30186 s]
/proc/loadavg: 0.99 1.04 1.03 2/107 22966
/proc/meminfo: memFree=1822292/2059040 swapFree=4136640/4192956
[pid=22965] ppid=22963 vsize=8048 CPUtime=6.29
/proc/22965/stat : 22965 (pbct) R 22963 22965 21382 0 -1 4202496 1703 0 0 0 571 58 0 0 25 0 1 0 16878105 8241152 1626 1992294400 134512640 136485738 4290824592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22965/statm: 2012 1626 223 482 0 1528 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8048

[startup+12.7014 s]
/proc/loadavg: 0.99 1.04 1.03 2/107 22966
/proc/meminfo: memFree=1821920/2059040 swapFree=4136640/4192956
[pid=22965] ppid=22963 vsize=8048 CPUtime=12.69
/proc/22965/stat : 22965 (pbct) R 22963 22965 21382 0 -1 4202496 1723 0 0 0 1145 124 0 0 25 0 1 0 16878105 8241152 1646 1992294400 134512640 136485738 4290824592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22965/statm: 2012 1646 223 482 0 1528 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8048

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

[startup+14.3085 s]
/proc/loadavg: 0.99 1.04 1.02 2/107 22966
/proc/meminfo: memFree=1821920/2059040 swapFree=4136640/4192956
[pid=22965] ppid=22963 vsize=8048 CPUtime=14.29
/proc/22965/stat : 22965 (pbct) R 22963 22965 21382 0 -1 4202496 1723 0 0 0 1289 140 0 0 25 0 1 0 16878105 8241152 1646 1992294400 134512640 136485738 4290824592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22965/statm: 2012 1646 223 482 0 1528 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 8048

[startup+15.1016 s]
/proc/loadavg: 0.99 1.04 1.02 2/107 22966
/proc/meminfo: memFree=1821920/2059040 swapFree=4136640/4192956
[pid=22965] ppid=22963 vsize=8048 CPUtime=15.09
/proc/22965/stat : 22965 (pbct) R 22963 22965 21382 0 -1 4202496 1723 0 0 0 1361 148 0 0 25 0 1 0 16878105 8241152 1646 1992294400 134512640 136485738 4290824592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22965/statm: 2012 1646 223 482 0 1528 0
Current children cumulated CPU time (s) 15.09
Current children cumulated vsize (KiB) 8048

[startup+15.3016 s]
/proc/loadavg: 0.99 1.04 1.02 2/107 22966
/proc/meminfo: memFree=1821920/2059040 swapFree=4136640/4192956
[pid=22965] ppid=22963 vsize=8048 CPUtime=15.3
/proc/22965/stat : 22965 (pbct) R 22963 22965 21382 0 -1 4202496 1723 0 0 0 1380 150 0 0 25 0 1 0 16878105 8241152 1646 1992294400 134512640 136485738 4290824592 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22965/statm: 2012 1646 223 482 0 1528 0
Current children cumulated CPU time (s) 15.3
Current children cumulated vsize (KiB) 8048

Child status: 0
Real time (s): 15.3537
CPU time (s): 15.3507
CPU user time (s): 13.8399
CPU system time (s): 1.51077
CPU usage (%): 99.9799
Max. virtual memory (cumulated for all children) (KiB): 8048

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 13.8399
system time used= 1.51077
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1747
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= 22

runsolver used 0.025996 second user time and 0.081987 second system time

The end

Launcher Data 

Begin job on node026 at 2010-06-13 14:30:27
IDJOB=2668892
IDBENCH=1224
IDSOLVER=1170
FILE ID=node026/2668892-1276432227
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-t2001.13queen13.1111226680.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668892-1276432227/watcher-2668892-1276432227 -o /tmp/evaluation-result-2668892-1276432227/solver-2668892-1276432227 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668892-1276432227.opb

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

MD5SUM BENCH= 35d60df2826d5cfd1cfef4e444dfafed
RANDOM SEED=851048950

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:       1828780 kB
Buffers:         30016 kB
Cached:         123240 kB
SwapCached:       9428 kB
Active:         100800 kB
Inactive:        64880 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1828780 kB
SwapTotal:     4192956 kB
SwapFree:      4136640 kB
Dirty:            2068 kB
Writeback:           0 kB
AnonPages:       10988 kB
Mapped:           9300 kB
Slab:            42792 kB
PageTables:       4076 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179616 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 14:30:42