Trace number 2682481

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 22.7125 22.7204

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110973670.opb
MD5SUM2d5d56ef88518febfb85606d45805c18
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 benchmark0.173973
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 1248
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
22.68/22.70	c 20.6269 7.91797 1595 117458
22.68/22.71	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-2682481-1277475647/watcher-2682481-1277475647 -o /tmp/evaluation-result-2682481-1277475647/solver-2682481-1277475647 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682481-1277475647.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: 0.22 0.05 0.02 3/106 20841
/proc/meminfo: memFree=1805784/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=3444 CPUtime=0
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 564 0 0 0 0 0 0 0 25 0 1 0 121216565 3526656 484 1992294400 134512640 136421960 4287890000 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 861 485 193 467 0 392 0

[startup+0.093977 s]
/proc/loadavg: 0.22 0.05 0.02 3/106 20841
/proc/meminfo: memFree=1805784/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=7336 CPUtime=0.08
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 1538 0 0 0 8 0 0 0 25 0 1 0 121216565 7512064 1458 1992294400 134512640 136421960 4287890000 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 1834 1458 213 467 0 1365 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 7336

[startup+0.100979 s]
/proc/loadavg: 0.22 0.05 0.02 3/106 20841
/proc/meminfo: memFree=1805784/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=7336 CPUtime=0.09
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 1540 0 0 0 8 1 0 0 25 0 1 0 121216565 7512064 1460 1992294400 134512640 136421960 4287890000 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 1834 1460 213 467 0 1365 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7336

[startup+0.301014 s]
/proc/loadavg: 0.22 0.05 0.02 3/106 20841
/proc/meminfo: memFree=1805784/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=7464 CPUtime=0.29
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 1572 0 0 0 26 3 0 0 25 0 1 0 121216565 7643136 1492 1992294400 134512640 136421960 4287890000 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 1866 1492 213 467 0 1397 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7464

[startup+0.701087 s]
/proc/loadavg: 0.22 0.05 0.02 3/106 20841
/proc/meminfo: memFree=1805784/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=7592 CPUtime=0.69
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 1600 0 0 0 63 6 0 0 25 0 1 0 121216565 7774208 1520 1992294400 134512640 136421960 4287890000 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 1898 1520 213 467 0 1429 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7592

[startup+1.50123 s]
/proc/loadavg: 0.22 0.05 0.02 2/107 20842
/proc/meminfo: memFree=1800444/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=7720 CPUtime=1.49
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 1624 0 0 0 134 15 0 0 25 0 1 0 121216565 7905280 1544 1992294400 134512640 136421960 4287890000 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 1930 1544 213 467 0 1461 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7720

[startup+3.10052 s]
/proc/loadavg: 0.28 0.06 0.02 2/107 20842
/proc/meminfo: memFree=1800072/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=7848 CPUtime=3.09
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 1664 0 0 0 280 29 0 0 25 0 1 0 121216565 8036352 1584 1992294400 134512640 136421960 4287890000 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 1962 1584 213 467 0 1493 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7848

[startup+6.30111 s]
/proc/loadavg: 0.28 0.06 0.02 2/107 20844
/proc/meminfo: memFree=1799824/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=7848 CPUtime=6.29
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 1677 0 0 0 568 61 0 0 25 0 1 0 121216565 8036352 1597 1992294400 134512640 136421960 4287890000 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 1962 1597 213 467 0 1493 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7848

[startup+12.7003 s]
/proc/loadavg: 0.39 0.09 0.03 2/107 20844
/proc/meminfo: memFree=1799576/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=8104 CPUtime=12.69
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 1731 0 0 0 1151 118 0 0 25 0 1 0 121216565 8298496 1651 1992294400 134512640 136421960 4287890000 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 2026 1651 213 467 0 1557 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8104

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

[startup+19.1004 s]
/proc/loadavg: 0.52 0.13 0.04 2/107 20844
/proc/meminfo: memFree=1799576/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=8104 CPUtime=19.09
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 1740 0 0 0 1731 178 0 0 25 0 1 0 121216565 8298496 1660 1992294400 134512640 136421960 4287890000 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 2026 1660 213 467 0 1557 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 8104

[startup+20.7007 s]
/proc/loadavg: 0.52 0.13 0.04 2/107 20844
/proc/meminfo: memFree=1799576/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=8104 CPUtime=20.69
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 1740 0 0 0 1878 191 0 0 25 0 1 0 121216565 8298496 1660 1992294400 134512640 136421960 4287890000 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 2026 1660 213 467 0 1557 0
Current children cumulated CPU time (s) 20.69
Current children cumulated vsize (KiB) 8104

[startup+21.5019 s]
/proc/loadavg: 0.52 0.13 0.04 2/107 20844
/proc/meminfo: memFree=1799576/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=8104 CPUtime=21.48
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 1740 0 0 0 1953 195 0 0 25 0 1 0 121216565 8298496 1660 1992294400 134512640 136421960 4287890000 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 2026 1660 213 467 0 1557 0
Current children cumulated CPU time (s) 21.48
Current children cumulated vsize (KiB) 8104

[startup+22.302 s]
/proc/loadavg: 0.56 0.14 0.04 2/107 20844
/proc/meminfo: memFree=1799576/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=8104 CPUtime=22.29
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 1740 0 0 0 2026 203 0 0 25 0 1 0 121216565 8298496 1660 1992294400 134512640 136421960 4287890000 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 2026 1660 213 467 0 1557 0
Current children cumulated CPU time (s) 22.29
Current children cumulated vsize (KiB) 8104

[startup+22.7011 s]
/proc/loadavg: 0.56 0.14 0.04 2/107 20844
/proc/meminfo: memFree=1799576/2059040 swapFree=4136184/4192956
[pid=20841] ppid=20839 vsize=8104 CPUtime=22.68
/proc/20841/stat : 20841 (pbct) R 20839 20841 20789 0 -1 4202496 1740 0 0 0 2062 206 0 0 25 0 1 0 121216565 8298496 1660 1992294400 134512640 136421960 4287890000 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/20841/statm: 2026 1660 213 467 0 1557 0
Current children cumulated CPU time (s) 22.68
Current children cumulated vsize (KiB) 8104

Child status: 0
Real time (s): 22.7204
CPU time (s): 22.7125
CPU user time (s): 20.6399
CPU system time (s): 2.07268
CPU usage (%): 99.9654
Max. virtual memory (cumulated for all children) (KiB): 8104

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.6399
system time used= 2.07268
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1766
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= 84

runsolver used 0.045993 second user time and 0.108983 second system time

The end

Launcher Data 

Begin job on node027 at 2010-06-25 16:20:47
IDJOB=2682481
IDBENCH=1219
IDSOLVER=1192
FILE ID=node027/2682481-1277475647
PBS_JOBID= 11190515
Free space on /tmp= 62028 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110973670.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682481-1277475647/watcher-2682481-1277475647 -o /tmp/evaluation-result-2682481-1277475647/solver-2682481-1277475647 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682481-1277475647.opb

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

MD5SUM BENCH= 2d5d56ef88518febfb85606d45805c18
RANDOM SEED=119247657

node027.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		: 2800.261
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	: 5600.52
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		: 2800.261
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	: 5599.45
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1806312 kB
Buffers:         34212 kB
Cached:         128328 kB
SwapCached:       9196 kB
Active:          63452 kB
Inactive:       112168 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1806312 kB
SwapTotal:     4192956 kB
SwapFree:      4136184 kB
Dirty:            1880 kB
Writeback:           0 kB
AnonPages:       11704 kB
Mapped:           8372 kB
Slab:            55172 kB
PageTables:       4164 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182976 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264952 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62028 MiB
End job on node027 at 2010-06-25 16:21:10