Trace number 2668850

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 0.1SAT 21.6893 10.902

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111224522.opb
MD5SUM269a6b743bb0d28274f35393a2f0dd96
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.116981
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
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 1287
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
10.79/10.88	c 9.8295 7.85547 2421 57642
10.79/10.88	s SATISFIABLE
10.79/10.88	v -x1 -x2 -x3 -x4 -x5 -x6 -x7 -x8 -x9 -x10 -x11 -x12 x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 x23 -x24 -x25 -x26 -x27 -x28 x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79 x80 -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 x103 -x104 -x105 -x106 -x107 -x108 -x109 -x110 -x111 x112 -x113 -x114 -x115 -x116 -x117 x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146 -x147 -x148 -x149 -x150 -x151 x152 -x153 -x154 -x155 -x156 -x157 -x158 -x159 -x160 x161 -x162 -x163 -x164 -x165 -x166 -x167 -x168 -x169

Verifier Data 

OK	0

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2668850-1276432038/watcher-2668850-1276432038 -o /tmp/evaluation-result-2668850-1276432038/solver-2668850-1276432038 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668850-1276432038.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: 0.90 0.97 0.99 3/106 23190
/proc/meminfo: memFree=1832632/2059040 swapFree=4140476/4192956
[pid=23190] ppid=23188 vsize=3384 CPUtime=0
/proc/23190/stat : 23190 (pbct) R 23188 23190 23028 0 -1 4202496 532 0 0 0 0 0 0 0 20 0 1 0 18807236 3465216 455 1992294400 134512640 136485738 4286705360 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23190/statm: 846 456 190 482 0 362 0

[startup+0.067379 s]
/proc/loadavg: 0.90 0.97 0.99 3/106 23190
/proc/meminfo: memFree=1832632/2059040 swapFree=4140476/4192956
[pid=23190] ppid=23188 vsize=7404 CPUtime=0.05
/proc/23190/stat : 23190 (pbct) R 23188 23190 23028 0 -1 4202496 1542 0 0 0 5 0 0 0 20 0 1 0 18807236 7581696 1465 1992294400 134512640 136485738 4286705360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23190/statm: 1851 1465 223 482 0 1367 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 7404

[startup+0.101384 s]
/proc/loadavg: 0.90 0.97 0.99 3/106 23190
/proc/meminfo: memFree=1832632/2059040 swapFree=4140476/4192956
[pid=23190] ppid=23188 vsize=7404 CPUtime=0.09
/proc/23190/stat : 23190 (pbct) R 23188 23190 23028 0 -1 4202496 1550 0 0 0 8 1 0 0 20 0 1 0 18807236 7581696 1473 1992294400 134512640 136485738 4286705360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23190/statm: 1851 1473 223 482 0 1367 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7404

[startup+0.300421 s]
/proc/loadavg: 0.90 0.97 0.99 3/106 23190
/proc/meminfo: memFree=1832632/2059040 swapFree=4140476/4192956
[pid=23190] ppid=23188 vsize=7532 CPUtime=0.29
/proc/23190/stat : 23190 (pbct) R 23188 23190 23028 0 -1 4202496 1582 0 0 0 27 2 0 0 20 0 1 0 18807236 7712768 1505 1992294400 134512640 136485738 4286705360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23190/statm: 1883 1505 223 482 0 1399 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7532

[startup+0.700495 s]
/proc/loadavg: 0.90 0.97 0.99 3/106 23190
/proc/meminfo: memFree=1832632/2059040 swapFree=4140476/4192956
[pid=23190] ppid=23188 vsize=7660 CPUtime=0.69
/proc/23190/stat : 23190 (pbct) R 23188 23190 23028 0 -1 4202496 1605 0 0 0 63 6 0 0 20 0 1 0 18807236 7843840 1528 1992294400 134512640 136485738 4286705360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23190/statm: 1915 1528 223 482 0 1431 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7660

[startup+1.50064 s]
/proc/loadavg: 0.91 0.97 0.99 2/107 23191
/proc/meminfo: memFree=1827168/2059040 swapFree=4140476/4192956
[pid=23190] ppid=23188 vsize=7788 CPUtime=1.49
/proc/23190/stat : 23190 (pbct) R 23188 23190 23028 0 -1 4202496 1633 0 0 0 135 14 0 0 22 0 1 0 18807236 7974912 1556 1992294400 134512640 136485738 4286705360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23190/statm: 1947 1556 223 482 0 1463 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7788

[startup+3.10094 s]
/proc/loadavg: 0.91 0.97 0.99 2/107 23191
/proc/meminfo: memFree=1826920/2059040 swapFree=4140476/4192956
[pid=23190] ppid=23188 vsize=7788 CPUtime=3.09
/proc/23190/stat : 23190 (pbct) R 23188 23190 23028 0 -1 4202496 1658 0 0 0 279 30 0 0 25 0 1 0 18807236 7974912 1581 1992294400 134512640 136485738 4286705360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23190/statm: 1947 1581 223 482 0 1463 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7788

[startup+6.30153 s]
/proc/loadavg: 0.92 0.97 0.99 2/107 23191
/proc/meminfo: memFree=1826796/2059040 swapFree=4140476/4192956
[pid=23190] ppid=23188 vsize=8040 CPUtime=6.29
/proc/23190/stat : 23190 (pbct) R 23188 23190 23028 0 -1 4202496 1693 0 0 0 568 61 0 0 25 0 1 0 18807236 8232960 1616 1992294400 134512640 136485738 4286705360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23190/statm: 2010 1616 223 482 0 1526 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8040

############
# WARNING:
# current cumulated CPU time (0 s) is less than in the last sample (10.79 s)
# The time of a child was probably not reported to its father.
# (see the two samples below)
# Adding the difference (10.79 s) to the 'lost time'.

[startup+10.8014 s]
/proc/loadavg: 0.92 0.97 0.99 2/107 23191
/proc/meminfo: memFree=1826548/2059040 swapFree=4140476/4192956
[pid=23190] ppid=23188 vsize=8040 CPUtime=10.79
/proc/23190/stat : 23190 (pbct) R 23188 23190 23028 0 -1 4202496 1708 0 0 0 975 104 0 0 25 0 1 0 18807236 8232960 1631 1992294400 134512640 136485738 4286705360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23190/statm: 2010 1631 223 482 0 1526 0
Current children cumulated CPU time (s) 10.79
Current children cumulated vsize (KiB) 8040

[startup+10.9014 s]
/proc/loadavg: 0.92 0.97 0.99 2/107 23191
/proc/meminfo: memFree=1826424/2059040 swapFree=4140476/4192956
[pid=23190] ppid=-1 vsize=0 CPUtime=0
/proc/23190/stat : -- couldn't open stat file --/proc/23190/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0
#
############


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

[startup+9.50112 s]
/proc/loadavg: 0.92 0.97 0.99 2/107 23191
/proc/meminfo: memFree=1826548/2059040 swapFree=4140476/4192956
[pid=23190] ppid=23188 vsize=8040 CPUtime=9.49
/proc/23190/stat : 23190 (pbct) R 23188 23190 23028 0 -1 4202496 1708 0 0 0 858 91 0 0 25 0 1 0 18807236 8232960 1631 1992294400 134512640 136485738 4286705360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23190/statm: 2010 1631 223 482 0 1526 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 8040

[startup+10.3013 s]
/proc/loadavg: 0.92 0.97 0.99 2/107 23191
/proc/meminfo: memFree=1826548/2059040 swapFree=4140476/4192956
[pid=23190] ppid=23188 vsize=8040 CPUtime=10.28
/proc/23190/stat : 23190 (pbct) R 23188 23190 23028 0 -1 4202496 1708 0 0 0 930 98 0 0 25 0 1 0 18807236 8232960 1631 1992294400 134512640 136485738 4286705360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23190/statm: 2010 1631 223 482 0 1526 0
Current children cumulated CPU time (s) 10.28
Current children cumulated vsize (KiB) 8040

[startup+10.7013 s]
/proc/loadavg: 0.92 0.97 0.99 2/107 23191
/proc/meminfo: memFree=1826548/2059040 swapFree=4140476/4192956
[pid=23190] ppid=23188 vsize=8040 CPUtime=10.68
/proc/23190/stat : 23190 (pbct) R 23188 23190 23028 0 -1 4202496 1708 0 0 0 966 102 0 0 25 0 1 0 18807236 8232960 1631 1992294400 134512640 136485738 4286705360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23190/statm: 2010 1631 223 482 0 1526 0
Current children cumulated CPU time (s) 10.68
Current children cumulated vsize (KiB) 8040

[startup+10.9014 s]
/proc/loadavg: 0.92 0.97 0.99 2/107 23191
/proc/meminfo: memFree=1826424/2059040 swapFree=4140476/4192956
[pid=23190] ppid=-1 vsize=0 CPUtime=0
/proc/23190/stat : -- couldn't open stat file --/proc/23190/statm: Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 0

Child status: 0

# WARNING:
# The CPU time of some children was not reported to their father
# (probably because of a missing or aborted wait()).
# This 'lost CPU time' is added to the watched process CPU time.
#  lost CPU time (s): 10.79
#  lost CPU user time (s): 9.75
#  lost CPU system time (s): 1.04

Real time (s): 10.902
CPU time (s): 21.6893
CPU user time (s): 19.5925
CPU system time (s): 2.09684
CPU usage (%): 198.948
Max. virtual memory (cumulated for all children) (KiB): 8044

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 9.8425
system time used= 1.05684
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1732
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= 18

runsolver used 0.018997 second user time and 0.06299 second system time

The end

Launcher Data 

Begin job on node007 at 2010-06-13 14:27:18
IDJOB=2668850
IDBENCH=1182
IDSOLVER=1170
FILE ID=node007/2668850-1276432038
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-t2001.13queen13.1111224522.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668850-1276432038/watcher-2668850-1276432038 -o /tmp/evaluation-result-2668850-1276432038/solver-2668850-1276432038 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668850-1276432038.opb

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

MD5SUM BENCH= 269a6b743bb0d28274f35393a2f0dd96
RANDOM SEED=625226290

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:       1833036 kB
Buffers:         23992 kB
Cached:         122692 kB
SwapCached:       6692 kB
Active:         102076 kB
Inactive:        58164 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1833036 kB
SwapTotal:     4192956 kB
SwapFree:      4140476 kB
Dirty:            2232 kB
Writeback:           0 kB
AnonPages:       11112 kB
Mapped:          12904 kB
Slab:            43936 kB
PageTables:       4048 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180200 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 14:27:29