Trace number 2668933

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 24.7362 24.7449

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111228076.opb
MD5SUM5e07f8b43a59b370ff10f0589c5144c8
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 benchmark0.151976
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 1225
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
24.68/24.73	c 22.3336 8.10547 175 128863
24.68/24.74	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-2668933-1276432314/watcher-2668933-1276432314 -o /tmp/evaluation-result-2668933-1276432314/solver-2668933-1276432314 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668933-1276432314.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: 0.97 0.96 0.98 3/106 23655
/proc/meminfo: memFree=1831084/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=3384 CPUtime=0
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 538 0 0 0 0 0 0 0 22 0 1 0 18834852 3465216 461 1992294400 134512640 136485738 4292440256 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 846 466 194 482 0 362 0

[startup+0.0268519 s]
/proc/loadavg: 0.97 0.96 0.98 3/106 23655
/proc/meminfo: memFree=1831084/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=4696 CPUtime=0.02
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 860 0 0 0 2 0 0 0 22 0 1 0 18834852 4808704 783 1992294400 134512640 136485738 4292440256 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 1174 784 196 482 0 690 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 4696

[startup+0.100867 s]
/proc/loadavg: 0.97 0.96 0.98 3/106 23655
/proc/meminfo: memFree=1831084/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=7400 CPUtime=0.09
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 1548 0 0 0 9 0 0 0 22 0 1 0 18834852 7577600 1471 1992294400 134512640 136485738 4292440256 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 1850 1471 223 482 0 1366 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7400

[startup+0.300903 s]
/proc/loadavg: 0.97 0.96 0.98 3/106 23655
/proc/meminfo: memFree=1831084/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=7656 CPUtime=0.29
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 1605 0 0 0 26 3 0 0 22 0 1 0 18834852 7839744 1528 1992294400 134512640 136485738 4292440256 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 1914 1529 223 482 0 1430 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7656

[startup+0.700976 s]
/proc/loadavg: 0.97 0.96 0.98 3/106 23655
/proc/meminfo: memFree=1831084/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=7656 CPUtime=0.69
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 1616 0 0 0 61 8 0 0 24 0 1 0 18834852 7839744 1539 1992294400 134512640 136485738 4292440256 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 1914 1539 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: 0.97 0.96 0.98 2/107 23656
/proc/meminfo: memFree=1825620/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=7784 CPUtime=1.49
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 1636 0 0 0 133 16 0 0 25 0 1 0 18834852 7970816 1559 1992294400 134512640 136485738 4292440256 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 1946 1559 223 482 0 1462 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7784

[startup+3.10042 s]
/proc/loadavg: 0.97 0.96 0.98 2/107 23656
/proc/meminfo: memFree=1825248/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=7912 CPUtime=3.09
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 1678 0 0 0 278 31 0 0 25 0 1 0 18834852 8101888 1601 1992294400 134512640 136485738 4292440256 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 1978 1601 223 482 0 1494 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7912

[startup+6.30101 s]
/proc/loadavg: 0.97 0.96 0.98 2/107 23656
/proc/meminfo: memFree=1825124/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=8040 CPUtime=6.29
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 1704 0 0 0 566 63 0 0 25 0 1 0 18834852 8232960 1627 1992294400 134512640 136485738 4292440256 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 2010 1627 223 482 0 1526 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8040

[startup+12.7002 s]
/proc/loadavg: 0.97 0.96 0.98 2/107 23656
/proc/meminfo: memFree=1824876/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=8168 CPUtime=12.69
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 1744 0 0 0 1140 129 0 0 25 0 1 0 18834852 8364032 1667 1992294400 134512640 136485738 4292440256 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 2042 1667 223 482 0 1558 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8168

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

[startup+19.1014 s]
/proc/loadavg: 0.98 0.96 0.98 2/107 23658
/proc/meminfo: memFree=1824876/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=8168 CPUtime=19.09
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 1746 0 0 0 1721 188 0 0 25 0 1 0 18834852 8364032 1669 1992294400 134512640 136485738 4292440256 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 2042 1669 223 482 0 1558 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 8168

[startup+22.302 s]
/proc/loadavg: 0.98 0.96 0.98 2/107 23658
/proc/meminfo: memFree=1824876/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=8168 CPUtime=22.29
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 1746 0 0 0 2013 216 0 0 25 0 1 0 18834852 8364032 1669 1992294400 134512640 136485738 4292440256 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 2042 1669 223 482 0 1558 0
Current children cumulated CPU time (s) 22.29
Current children cumulated vsize (KiB) 8168

[startup+23.9013 s]
/proc/loadavg: 0.98 0.96 0.98 2/107 23658
/proc/meminfo: memFree=1824876/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=8296 CPUtime=23.88
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 1756 0 0 0 2157 231 0 0 25 0 1 0 18834852 8495104 1679 1992294400 134512640 136485738 4292440256 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 2074 1679 223 482 0 1590 0
Current children cumulated CPU time (s) 23.88
Current children cumulated vsize (KiB) 8296

[startup+24.3013 s]
/proc/loadavg: 0.98 0.96 0.98 2/107 23658
/proc/meminfo: memFree=1824752/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=8296 CPUtime=24.28
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 1758 0 0 0 2193 235 0 0 25 0 1 0 18834852 8495104 1681 1992294400 134512640 136485738 4292440256 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 2074 1681 223 482 0 1590 0
Current children cumulated CPU time (s) 24.28
Current children cumulated vsize (KiB) 8296

[startup+24.7014 s]
/proc/loadavg: 0.98 0.96 0.98 2/107 23658
/proc/meminfo: memFree=1824752/2059040 swapFree=4140476/4192956
[pid=23655] ppid=23653 vsize=8296 CPUtime=24.68
/proc/23655/stat : 23655 (pbct) R 23653 23655 23028 0 -1 4202496 1758 0 0 0 2230 238 0 0 25 0 1 0 18834852 8495104 1681 1992294400 134512640 136485738 4292440256 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23655/statm: 2074 1681 223 482 0 1590 0
Current children cumulated CPU time (s) 24.68
Current children cumulated vsize (KiB) 8296

Child status: 0
Real time (s): 24.7449
CPU time (s): 24.7362
CPU user time (s): 22.3476
CPU system time (s): 2.38864
CPU usage (%): 99.9648
Max. virtual memory (cumulated for all children) (KiB): 8296

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 22.3476
system time used= 2.38864
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1782
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= 286

runsolver used 0.052991 second user time and 0.114982 second system time

The end

Launcher Data 

Begin job on node007 at 2010-06-13 14:31:54
IDJOB=2668933
IDBENCH=1265
IDSOLVER=1170
FILE ID=node007/2668933-1276432314
PBS_JOBID= 11173317
Free space on /tmp= 62456 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111228076.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668933-1276432314/watcher-2668933-1276432314 -o /tmp/evaluation-result-2668933-1276432314/solver-2668933-1276432314 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668933-1276432314.opb

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

MD5SUM BENCH= 5e07f8b43a59b370ff10f0589c5144c8
RANDOM SEED=736707589

node007.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		: 3000.264
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	: 6000.52
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		: 3000.264
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	: 5599.44
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1831612 kB
Buffers:         25028 kB
Cached:         123056 kB
SwapCached:       6692 kB
Active:         102552 kB
Inactive:        59068 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1831612 kB
SwapTotal:     4192956 kB
SwapFree:      4140476 kB
Dirty:            2072 kB
Writeback:           0 kB
AnonPages:       11064 kB
Mapped:          12904 kB
Slab:            44048 kB
PageTables:       4040 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182100 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= 62456 MiB
End job on node007 at 2010-06-13 14:32:19