Trace number 2682482

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 19.781 19.7864

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111220767.opb
MD5SUM38b43a11d13f0709a9bef9791640fdad
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 benchmark0.118981
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
19.69/19.77	c 17.8673 8.01562 1467 102403
19.69/19.78	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-2682482-1277475648/watcher-2682482-1277475648 -o /tmp/evaluation-result-2682482-1277475648/solver-2682482-1277475648 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2682482-1277475648.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: 0.28 0.06 0.02 3/106 22206
/proc/meminfo: memFree=1826964/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=3444 CPUtime=0
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 554 0 0 0 0 0 0 0 25 0 1 0 121221134 3526656 474 1992294400 134512640 136421960 4289217120 18446744073709551615 135811817 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 861 476 193 467 0 392 0

[startup+0.093006 s]
/proc/loadavg: 0.28 0.06 0.02 3/106 22206
/proc/meminfo: memFree=1826964/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=7308 CPUtime=0.08
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 1538 0 0 0 7 1 0 0 25 0 1 0 121221134 7483392 1458 1992294400 134512640 136421960 4289217120 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 1827 1458 213 467 0 1358 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 7308

[startup+0.101006 s]
/proc/loadavg: 0.28 0.06 0.02 3/106 22206
/proc/meminfo: memFree=1826964/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=7308 CPUtime=0.09
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 1539 0 0 0 8 1 0 0 25 0 1 0 121221134 7483392 1459 1992294400 134512640 136421960 4289217120 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 1827 1459 213 467 0 1358 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7308

[startup+0.301025 s]
/proc/loadavg: 0.28 0.06 0.02 3/106 22206
/proc/meminfo: memFree=1826964/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=7564 CPUtime=0.29
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 1583 0 0 0 25 4 0 0 25 0 1 0 121221134 7745536 1503 1992294400 134512640 136421960 4289217120 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 1891 1503 213 467 0 1422 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7564

[startup+0.701063 s]
/proc/loadavg: 0.28 0.06 0.02 3/106 22206
/proc/meminfo: memFree=1826964/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=7564 CPUtime=0.69
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 1604 0 0 0 60 9 0 0 25 0 1 0 121221134 7745536 1524 1992294400 134512640 136421960 4289217120 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 1891 1524 213 467 0 1422 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7564

[startup+1.50114 s]
/proc/loadavg: 0.28 0.06 0.02 2/107 22207
/proc/meminfo: memFree=1821624/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=7692 CPUtime=1.49
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 1629 0 0 0 132 17 0 0 25 0 1 0 121221134 7876608 1549 1992294400 134512640 136421960 4289217120 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 1923 1549 213 467 0 1454 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7692

[startup+3.10129 s]
/proc/loadavg: 0.28 0.06 0.02 2/107 22207
/proc/meminfo: memFree=1821376/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=7692 CPUtime=3.09
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 1637 0 0 0 275 34 0 0 25 0 1 0 121221134 7876608 1557 1992294400 134512640 136421960 4289217120 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 1923 1557 213 467 0 1454 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7692

[startup+6.3016 s]
/proc/loadavg: 0.34 0.08 0.02 2/107 22207
/proc/meminfo: memFree=1821128/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=7948 CPUtime=6.29
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 1693 0 0 0 564 65 0 0 25 0 1 0 121221134 8138752 1613 1992294400 134512640 136421960 4289217120 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 1987 1613 213 467 0 1518 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 7948

[startup+12.7012 s]
/proc/loadavg: 0.39 0.09 0.03 2/107 22207
/proc/meminfo: memFree=1820756/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=8204 CPUtime=12.68
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 1740 0 0 0 1143 125 0 0 25 0 1 0 121221134 8400896 1660 1992294400 134512640 136421960 4289217120 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 2051 1660 213 467 0 1582 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 8204

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

[startup+15.9005 s]
/proc/loadavg: 0.44 0.11 0.03 2/107 22207
/proc/meminfo: memFree=1820632/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=8204 CPUtime=15.89
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 1740 0 0 0 1432 157 0 0 25 0 1 0 121221134 8400896 1660 1992294400 134512640 136421960 4289217120 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 2051 1660 213 467 0 1582 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 8204

[startup+17.5007 s]
/proc/loadavg: 0.44 0.11 0.03 2/107 22207
/proc/meminfo: memFree=1820632/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=8204 CPUtime=17.49
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 1740 0 0 0 1578 171 0 0 25 0 1 0 121221134 8400896 1660 1992294400 134512640 136421960 4289217120 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 2051 1660 213 467 0 1582 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 8204

[startup+19.1008 s]
/proc/loadavg: 0.49 0.12 0.04 2/107 22207
/proc/meminfo: memFree=1820632/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=8204 CPUtime=19.09
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 1740 0 0 0 1724 185 0 0 25 0 1 0 121221134 8400896 1660 1992294400 134512640 136421960 4289217120 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 2051 1660 213 467 0 1582 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 8204

[startup+19.5009 s]
/proc/loadavg: 0.49 0.12 0.04 2/107 22207
/proc/meminfo: memFree=1820632/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=8204 CPUtime=19.49
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 1740 0 0 0 1761 188 0 0 25 0 1 0 121221134 8400896 1660 1992294400 134512640 136421960 4289217120 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 2051 1660 213 467 0 1582 0
Current children cumulated CPU time (s) 19.49
Current children cumulated vsize (KiB) 8204

[startup+19.7009 s]
/proc/loadavg: 0.49 0.12 0.04 2/107 22207
/proc/meminfo: memFree=1820632/2059040 swapFree=4139948/4192956
[pid=22206] ppid=22204 vsize=8204 CPUtime=19.69
/proc/22206/stat : 22206 (pbct) R 22204 22206 22152 0 -1 4202496 1740 0 0 0 1780 189 0 0 25 0 1 0 121221134 8400896 1660 1992294400 134512640 136421960 4289217120 18446744073709551615 135874657 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22206/statm: 2051 1660 213 467 0 1582 0
Current children cumulated CPU time (s) 19.69
Current children cumulated vsize (KiB) 8204

Child status: 0
Real time (s): 19.7864
CPU time (s): 19.781
CPU user time (s): 17.8793
CPU system time (s): 1.90171
CPU usage (%): 99.9728
Max. virtual memory (cumulated for all children) (KiB): 8204

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 17.8793
system time used= 1.90171
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= 50

runsolver used 0.031995 second user time and 0.107983 second system time

The end

Launcher Data 

Begin job on node018 at 2010-06-25 16:20:48
IDJOB=2682482
IDBENCH=1220
IDSOLVER=1192
FILE ID=node018/2682482-1277475648
PBS_JOBID= 11190519
Free space on /tmp= 62488 MiB

SOLVER NAME= PB/CT 0.1 fixed
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111220767.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2682482-1277475648/watcher-2682482-1277475648 -o /tmp/evaluation-result-2682482-1277475648/solver-2682482-1277475648 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2682482-1277475648.opb

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

MD5SUM BENCH= 38b43a11d13f0709a9bef9791640fdad
RANDOM SEED=119247657

node018.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		: 3000.248
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	: 6000.49
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		: 3000.248
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:       1827484 kB
Buffers:         38904 kB
Cached:          86156 kB
SwapCached:       5476 kB
Active:          67484 kB
Inactive:        70572 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1827484 kB
SwapTotal:     4192956 kB
SwapFree:      4139948 kB
Dirty:            1928 kB
Writeback:           0 kB
AnonPages:       11604 kB
Mapped:          11872 kB
Slab:            71576 kB
PageTables:       4240 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181048 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= 62488 MiB
End job on node018 at 2010-06-25 16:21:08