Trace number 2668901

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 17.3034 17.3127

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110969170.opb
MD5SUMc40b249e67431ed3407a98dac8d92148
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 benchmark0.033993
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 1227
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
17.18/17.29	c 15.6206 7.98047 1319 89985
17.28/17.31	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-2668901-1276432244/watcher-2668901-1276432244 -o /tmp/evaluation-result-2668901-1276432244/solver-2668901-1276432244 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668901-1276432244.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: 0.89 0.95 0.98 3/106 26096
/proc/meminfo: memFree=1848992/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=3384 CPUtime=0
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 535 0 0 0 0 0 0 0 23 0 1 0 18828378 3465216 458 1992294400 134512640 136485738 4287055376 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 846 460 191 482 0 362 0

[startup+0.103974 s]
/proc/loadavg: 0.89 0.95 0.98 3/106 26096
/proc/meminfo: memFree=1848992/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=7400 CPUtime=0.1
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1547 0 0 0 9 1 0 0 23 0 1 0 18828378 7577600 1470 1992294400 134512640 136485738 4287055376 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 1850 1470 223 482 0 1366 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 7400

[startup+0.200984 s]
/proc/loadavg: 0.89 0.95 0.98 3/106 26096
/proc/meminfo: memFree=1848992/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=7528 CPUtime=0.19
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1563 0 0 0 18 1 0 0 23 0 1 0 18828378 7708672 1486 1992294400 134512640 136485738 4287055376 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 1882 1486 223 482 0 1398 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 7528

[startup+0.300994 s]
/proc/loadavg: 0.89 0.95 0.98 3/106 26096
/proc/meminfo: memFree=1848992/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=7528 CPUtime=0.29
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1582 0 0 0 26 3 0 0 23 0 1 0 18828378 7708672 1505 1992294400 134512640 136485738 4287055376 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 1882 1505 223 482 0 1398 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7528

[startup+0.701035 s]
/proc/loadavg: 0.89 0.95 0.98 3/106 26096
/proc/meminfo: memFree=1848992/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=7656 CPUtime=0.69
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1601 0 0 0 62 7 0 0 25 0 1 0 18828378 7839744 1524 1992294400 134512640 136485738 4287055376 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 1914 1524 223 482 0 1430 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7656

[startup+1.50112 s]
/proc/loadavg: 0.89 0.95 0.98 2/107 26097
/proc/meminfo: memFree=1843652/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=7784 CPUtime=1.49
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1647 0 0 0 135 14 0 0 25 0 1 0 18828378 7970816 1570 1992294400 134512640 136485738 4287055376 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 1946 1570 223 482 0 1462 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7784

[startup+3.10128 s]
/proc/loadavg: 0.89 0.95 0.98 2/107 26097
/proc/meminfo: memFree=1843280/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=7912 CPUtime=3.09
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1670 0 0 0 279 30 0 0 25 0 1 0 18828378 8101888 1593 1992294400 134512640 136485738 4287055376 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 1978 1593 223 482 0 1494 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7912

[startup+6.30161 s]
/proc/loadavg: 0.90 0.95 0.98 2/107 26097
/proc/meminfo: memFree=1843032/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=8040 CPUtime=6.29
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1713 0 0 0 566 63 0 0 25 0 1 0 18828378 8232960 1636 1992294400 134512640 136485738 4287055376 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 2010 1636 223 482 0 1526 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8040

[startup+12.7013 s]
/proc/loadavg: 0.91 0.95 0.98 2/107 26097
/proc/meminfo: memFree=1842784/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=8168 CPUtime=12.68
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1729 0 0 0 1147 121 0 0 25 0 1 0 18828378 8364032 1652 1992294400 134512640 136485738 4287055376 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 2042 1652 223 482 0 1558 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 8168

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

[startup+12.8013 s]
/proc/loadavg: 0.91 0.95 0.98 2/107 26097
/proc/meminfo: memFree=1842784/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=8168 CPUtime=12.78
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1729 0 0 0 1156 122 0 0 25 0 1 0 18828378 8364032 1652 1992294400 134512640 136485738 4287055376 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 2042 1652 223 482 0 1558 0
Current children cumulated CPU time (s) 12.78
Current children cumulated vsize (KiB) 8168

[startup+14.4084 s]
/proc/loadavg: 0.91 0.95 0.98 2/107 26097
/proc/meminfo: memFree=1842784/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=8168 CPUtime=14.39
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1729 0 0 0 1301 138 0 0 25 0 1 0 18828378 8364032 1652 1992294400 134512640 136485738 4287055376 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 2042 1652 223 482 0 1558 0
Current children cumulated CPU time (s) 14.39
Current children cumulated vsize (KiB) 8168

[startup+16.0016 s]
/proc/loadavg: 0.91 0.95 0.98 2/107 26097
/proc/meminfo: memFree=1842784/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=8168 CPUtime=15.98
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1729 0 0 0 1445 153 0 0 25 0 1 0 18828378 8364032 1652 1992294400 134512640 136485738 4287055376 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 2042 1652 223 482 0 1558 0
Current children cumulated CPU time (s) 15.98
Current children cumulated vsize (KiB) 8168

[startup+16.8017 s]
/proc/loadavg: 0.91 0.95 0.98 3/107 26097
/proc/meminfo: memFree=1842784/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=8168 CPUtime=16.78
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1729 0 0 0 1516 162 0 0 25 0 1 0 18828378 8364032 1652 1992294400 134512640 136485738 4287055376 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 2042 1652 223 482 0 1558 0
Current children cumulated CPU time (s) 16.78
Current children cumulated vsize (KiB) 8168

[startup+17.2007 s]
/proc/loadavg: 0.91 0.95 0.98 3/107 26097
/proc/meminfo: memFree=1842784/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=8168 CPUtime=17.18
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1729 0 0 0 1553 165 0 0 25 0 1 0 18828378 8364032 1652 1992294400 134512640 136485738 4287055376 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 2042 1652 223 482 0 1558 0
Current children cumulated CPU time (s) 17.18
Current children cumulated vsize (KiB) 8168

[startup+17.3007 s]
/proc/loadavg: 0.91 0.95 0.98 3/107 26097
/proc/meminfo: memFree=1842784/2059040 swapFree=4135652/4192956
[pid=26096] ppid=26094 vsize=7648 CPUtime=17.28
/proc/26096/stat : 26096 (pbct) R 26094 26096 25934 0 -1 4202496 1752 0 0 0 1562 166 0 0 25 0 1 0 18828378 7831552 1544 1992294400 134512640 136485738 4287055376 18446744073709551615 134728885 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/26096/statm: 1912 1544 245 482 0 1428 0
Current children cumulated CPU time (s) 17.28
Current children cumulated vsize (KiB) 7648

Child status: 0
Real time (s): 17.3127
CPU time (s): 17.3034
CPU user time (s): 15.6346
CPU system time (s): 1.66875
CPU usage (%): 99.9461
Max. virtual memory (cumulated for all children) (KiB): 8168

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.6346
system time used= 1.66875
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= 1
involuntary context switches= 63

runsolver used 0.034994 second user time and 0.082987 second system time

The end

Launcher Data 

Begin job on node002 at 2010-06-13 14:30:44
IDJOB=2668901
IDBENCH=1233
IDSOLVER=1170
FILE ID=node002/2668901-1276432244
PBS_JOBID= 11173318
Free space on /tmp= 62400 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110969170.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668901-1276432244/watcher-2668901-1276432244 -o /tmp/evaluation-result-2668901-1276432244/solver-2668901-1276432244 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668901-1276432244.opb

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

MD5SUM BENCH= c40b249e67431ed3407a98dac8d92148
RANDOM SEED=1055746406

node002.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		: 3000.242
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	: 6000.48
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		: 3000.242
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	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1849520 kB
Buffers:         18916 kB
Cached:         114824 kB
SwapCached:       9944 kB
Active:          67816 kB
Inactive:        77912 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1849520 kB
SwapTotal:     4192956 kB
SwapFree:      4135652 kB
Dirty:            2072 kB
Writeback:           8 kB
AnonPages:       10712 kB
Mapped:           9156 kB
Slab:            42080 kB
PageTables:       3928 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179812 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= 62396 MiB
End job on node002 at 2010-06-13 14:31:02