Trace number 2668841

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 21.9167 21.9216

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110969860.opb
MD5SUM9be7288b45f2af67adcc248a2ea928cc
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 benchmark0.206968
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 1147
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
21.88/21.90	c 19.875 7.98438 191 114630
21.88/21.92	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-2668841-1276431982/watcher-2668841-1276431982 -o /tmp/evaluation-result-2668841-1276431982/solver-2668841-1276431982 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668841-1276431982.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: 0.95 0.98 1.00 3/106 21843
/proc/meminfo: memFree=1822580/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=3384 CPUtime=0
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 539 0 0 0 0 0 0 0 20 0 1 0 18802086 3465216 462 1992294400 134512640 136485738 4288045776 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 846 467 196 482 0 362 0

[startup+0.109545 s]
/proc/loadavg: 0.95 0.98 1.00 3/106 21843
/proc/meminfo: memFree=1822580/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=7404 CPUtime=0.1
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1553 0 0 0 10 0 0 0 20 0 1 0 18802086 7581696 1475 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 1851 1475 223 482 0 1367 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 7404

[startup+0.201554 s]
/proc/loadavg: 0.95 0.98 1.00 3/106 21843
/proc/meminfo: memFree=1822580/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=7532 CPUtime=0.19
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1573 0 0 0 18 1 0 0 20 0 1 0 18802086 7712768 1495 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 1883 1495 223 482 0 1399 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 7532

[startup+0.301563 s]
/proc/loadavg: 0.95 0.98 1.00 3/106 21843
/proc/meminfo: memFree=1822580/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=7660 CPUtime=0.29
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1597 0 0 0 27 2 0 0 20 0 1 0 18802086 7843840 1519 1992294400 134512640 136485738 4288045776 18446744073709551615 134882181 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 1915 1519 223 482 0 1431 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7660

[startup+0.701601 s]
/proc/loadavg: 0.95 0.98 1.00 3/106 21843
/proc/meminfo: memFree=1822580/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=7660 CPUtime=0.69
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1624 0 0 0 63 6 0 0 20 0 1 0 18802086 7843840 1546 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 1915 1547 223 482 0 1431 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7660

[startup+1.50168 s]
/proc/loadavg: 0.95 0.98 1.00 2/107 21844
/proc/meminfo: memFree=1816992/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=7788 CPUtime=1.49
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1641 0 0 0 136 13 0 0 22 0 1 0 18802086 7974912 1563 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 1947 1563 223 482 0 1463 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7788

[startup+3.10183 s]
/proc/loadavg: 0.95 0.98 1.00 2/107 21844
/proc/meminfo: memFree=1816744/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=7916 CPUtime=3.09
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1682 0 0 0 281 28 0 0 25 0 1 0 18802086 8105984 1604 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 1979 1604 223 482 0 1495 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7916

[startup+6.30113 s]
/proc/loadavg: 0.96 0.98 1.00 2/107 21844
/proc/meminfo: memFree=1816620/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=8044 CPUtime=6.29
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1701 0 0 0 570 59 0 0 25 0 1 0 18802086 8237056 1623 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 2011 1623 223 482 0 1527 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8044

[startup+12.7017 s]
/proc/loadavg: 0.96 0.98 1.00 2/107 21844
/proc/meminfo: memFree=1816124/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=8172 CPUtime=12.69
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1747 0 0 0 1151 118 0 0 25 0 1 0 18802086 8368128 1669 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 2043 1669 223 482 0 1559 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 8172

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

[startup+12.8018 s]
/proc/loadavg: 0.96 0.98 1.00 2/107 21844
/proc/meminfo: memFree=1816124/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=8172 CPUtime=12.79
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1747 0 0 0 1160 119 0 0 25 0 1 0 18802086 8368128 1669 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 2043 1669 223 482 0 1559 0
Current children cumulated CPU time (s) 12.79
Current children cumulated vsize (KiB) 8172

[startup+16.0011 s]
/proc/loadavg: 0.96 0.98 1.00 2/107 21844
/proc/meminfo: memFree=1816124/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=8172 CPUtime=15.98
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1747 0 0 0 1448 150 0 0 25 0 1 0 18802086 8368128 1669 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 2043 1669 223 482 0 1559 0
Current children cumulated CPU time (s) 15.98
Current children cumulated vsize (KiB) 8172

[startup+19.2014 s]
/proc/loadavg: 0.96 0.98 1.00 2/107 21844
/proc/meminfo: memFree=1816124/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=8172 CPUtime=19.19
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1747 0 0 0 1740 179 0 0 25 0 1 0 18802086 8368128 1669 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 2043 1669 223 482 0 1559 0
Current children cumulated CPU time (s) 19.19
Current children cumulated vsize (KiB) 8172

[startup+20.8015 s]
/proc/loadavg: 0.96 0.98 1.00 2/107 21844
/proc/meminfo: memFree=1816124/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=8172 CPUtime=20.79
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1750 0 0 0 1885 194 0 0 25 0 1 0 18802086 8368128 1672 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 2043 1672 223 482 0 1559 0
Current children cumulated CPU time (s) 20.79
Current children cumulated vsize (KiB) 8172

[startup+21.6016 s]
/proc/loadavg: 0.97 0.98 1.00 2/107 21846
/proc/meminfo: memFree=1816124/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=8172 CPUtime=21.59
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1750 0 0 0 1959 200 0 0 25 0 1 0 18802086 8368128 1672 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 2043 1672 223 482 0 1559 0
Current children cumulated CPU time (s) 21.59
Current children cumulated vsize (KiB) 8172

[startup+21.8016 s]
/proc/loadavg: 0.97 0.98 1.00 2/107 21846
/proc/meminfo: memFree=1816124/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=8172 CPUtime=21.78
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1750 0 0 0 1977 201 0 0 25 0 1 0 18802086 8368128 1672 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 2043 1672 223 482 0 1559 0
Current children cumulated CPU time (s) 21.78
Current children cumulated vsize (KiB) 8172

[startup+21.9016 s]
/proc/loadavg: 0.97 0.98 1.00 2/107 21846
/proc/meminfo: memFree=1816124/2059040 swapFree=4140388/4192956
[pid=21843] ppid=21841 vsize=8172 CPUtime=21.88
/proc/21843/stat : 21843 (pbct) R 21841 21843 21007 0 -1 4202496 1750 0 0 0 1986 202 0 0 25 0 1 0 18802086 8368128 1672 1992294400 134512640 136485738 4288045776 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21843/statm: 2043 1672 223 482 0 1559 0
Current children cumulated CPU time (s) 21.88
Current children cumulated vsize (KiB) 8172

Child status: 0
Real time (s): 21.9216
CPU time (s): 21.9167
CPU user time (s): 19.888
CPU system time (s): 2.02869
CPU usage (%): 99.9774
Max. virtual memory (cumulated for all children) (KiB): 8172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 19.888
system time used= 2.02869
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1774
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= 110

runsolver used 0.046992 second user time and 0.106983 second system time

The end

Launcher Data 

Begin job on node004 at 2010-06-13 14:26:22
IDJOB=2668841
IDBENCH=1173
IDSOLVER=1170
FILE ID=node004/2668841-1276431982
PBS_JOBID= 11173308
Free space on /tmp= 62536 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110969860.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668841-1276431982/watcher-2668841-1276431982 -o /tmp/evaluation-result-2668841-1276431982/solver-2668841-1276431982 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668841-1276431982.opb

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

MD5SUM BENCH= 9be7288b45f2af67adcc248a2ea928cc
RANDOM SEED=1092554262

node004.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		: 3000.210
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	: 6000.42
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		: 3000.210
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:       1822984 kB
Buffers:         30932 kB
Cached:         126416 kB
SwapCached:       6528 kB
Active:          93344 kB
Inactive:        77436 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1822984 kB
SwapTotal:     4192956 kB
SwapFree:      4140388 kB
Dirty:            2092 kB
Writeback:           0 kB
AnonPages:       11288 kB
Mapped:          12924 kB
Slab:            43468 kB
PageTables:       3916 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182440 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= 62536 MiB
End job on node004 at 2010-06-13 14:26:44