Trace number 2668853

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 9.8335 9.83555

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111226241.opb
MD5SUMb7b312369c912d9a28d0c332b741ce41
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 benchmark0.178972
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 1163
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
9.79/9.82	c 8.90864 7.98047 1596 53107
9.79/9.82	s SATISFIABLE
9.79/9.82	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-2668853-1276432057/watcher-2668853-1276432057 -o /tmp/evaluation-result-2668853-1276432057/solver-2668853-1276432057 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668853-1276432057.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: 0.98 0.98 1.00 3/106 21980
/proc/meminfo: memFree=1822084/2059040 swapFree=4140388/4192956
[pid=21980] ppid=21978 vsize=3384 CPUtime=0
/proc/21980/stat : 21980 (pbct) R 21978 21980 21007 0 -1 4202496 545 0 0 0 0 0 0 0 23 0 1 0 18809555 3465216 468 1992294400 134512640 136485738 4293780432 18446744073709551615 135260256 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21980/statm: 846 470 196 482 0 362 0

[startup+0.0999369 s]
/proc/loadavg: 0.98 0.98 1.00 3/106 21980
/proc/meminfo: memFree=1822084/2059040 swapFree=4140388/4192956
[pid=21980] ppid=21978 vsize=7400 CPUtime=0.09
/proc/21980/stat : 21980 (pbct) R 21978 21980 21007 0 -1 4202496 1551 0 0 0 9 0 0 0 23 0 1 0 18809555 7577600 1474 1992294400 134512640 136485738 4293780432 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21980/statm: 1850 1474 223 482 0 1366 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7400

[startup+0.100938 s]
/proc/loadavg: 0.98 0.98 1.00 3/106 21980
/proc/meminfo: memFree=1822084/2059040 swapFree=4140388/4192956
[pid=21980] ppid=21978 vsize=7400 CPUtime=0.09
/proc/21980/stat : 21980 (pbct) R 21978 21980 21007 0 -1 4202496 1551 0 0 0 9 0 0 0 23 0 1 0 18809555 7577600 1474 1992294400 134512640 136485738 4293780432 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21980/statm: 1850 1474 223 482 0 1366 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7400

[startup+0.300956 s]
/proc/loadavg: 0.98 0.98 1.00 3/106 21980
/proc/meminfo: memFree=1822084/2059040 swapFree=4140388/4192956
[pid=21980] ppid=21978 vsize=7528 CPUtime=0.29
/proc/21980/stat : 21980 (pbct) R 21978 21980 21007 0 -1 4202496 1594 0 0 0 27 2 0 0 23 0 1 0 18809555 7708672 1517 1992294400 134512640 136485738 4293780432 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21980/statm: 1882 1517 223 482 0 1398 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7528

[startup+0.700994 s]
/proc/loadavg: 0.98 0.98 1.00 3/106 21980
/proc/meminfo: memFree=1822084/2059040 swapFree=4140388/4192956
[pid=21980] ppid=21978 vsize=7656 CPUtime=0.69
/proc/21980/stat : 21980 (pbct) R 21978 21980 21007 0 -1 4202496 1623 0 0 0 62 7 0 0 25 0 1 0 18809555 7839744 1546 1992294400 134512640 136485738 4293780432 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21980/statm: 1914 1546 223 482 0 1430 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7656

[startup+1.50107 s]
/proc/loadavg: 0.98 0.98 1.00 2/107 21981
/proc/meminfo: memFree=1816620/2059040 swapFree=4140388/4192956
[pid=21980] ppid=21978 vsize=7784 CPUtime=1.49
/proc/21980/stat : 21980 (pbct) R 21978 21980 21007 0 -1 4202496 1649 0 0 0 136 13 0 0 25 0 1 0 18809555 7970816 1572 1992294400 134512640 136485738 4293780432 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21980/statm: 1946 1572 223 482 0 1462 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7784

[startup+3.10122 s]
/proc/loadavg: 0.98 0.98 1.00 2/107 21981
/proc/meminfo: memFree=1816372/2059040 swapFree=4140388/4192956
[pid=21980] ppid=21978 vsize=7912 CPUtime=3.09
/proc/21980/stat : 21980 (pbct) R 21978 21980 21007 0 -1 4202496 1661 0 0 0 281 28 0 0 25 0 1 0 18809555 8101888 1584 1992294400 134512640 136485738 4293780432 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21980/statm: 1978 1584 223 482 0 1494 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7912

[startup+6.30153 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 21981
/proc/meminfo: memFree=1816000/2059040 swapFree=4140388/4192956
[pid=21980] ppid=21978 vsize=8176 CPUtime=6.29
/proc/21980/stat : 21980 (pbct) R 21978 21980 21007 0 -1 4202496 1726 0 0 0 571 58 0 0 25 0 1 0 18809555 8372224 1649 1992294400 134512640 136485738 4293780432 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21980/statm: 2044 1649 223 482 0 1560 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8176

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

[startup+7.90068 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 21981
/proc/meminfo: memFree=1816000/2059040 swapFree=4140388/4192956
[pid=21980] ppid=21978 vsize=8176 CPUtime=7.88
/proc/21980/stat : 21980 (pbct) R 21978 21980 21007 0 -1 4202496 1727 0 0 0 714 74 0 0 25 0 1 0 18809555 8372224 1650 1992294400 134512640 136485738 4293780432 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21980/statm: 2044 1650 223 482 0 1560 0
Current children cumulated CPU time (s) 7.88
Current children cumulated vsize (KiB) 8176

[startup+8.70075 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 21981
/proc/meminfo: memFree=1816000/2059040 swapFree=4140388/4192956
[pid=21980] ppid=21978 vsize=8168 CPUtime=8.7
/proc/21980/stat : 21980 (pbct) R 21978 21980 21007 0 -1 4202496 1727 0 0 0 789 81 0 0 25 0 1 0 18809555 8364032 1650 1992294400 134512640 136485738 4293780432 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21980/statm: 2042 1650 223 482 0 1558 0
Current children cumulated CPU time (s) 8.7
Current children cumulated vsize (KiB) 8168

[startup+9.50083 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 21981
/proc/meminfo: memFree=1816000/2059040 swapFree=4140388/4192956
[pid=21980] ppid=21978 vsize=8168 CPUtime=9.49
/proc/21980/stat : 21980 (pbct) R 21978 21980 21007 0 -1 4202496 1727 0 0 0 861 88 0 0 25 0 1 0 18809555 8364032 1650 1992294400 134512640 136485738 4293780432 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21980/statm: 2042 1650 223 482 0 1558 0
Current children cumulated CPU time (s) 9.49
Current children cumulated vsize (KiB) 8168

[startup+9.70085 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 21981
/proc/meminfo: memFree=1816000/2059040 swapFree=4140388/4192956
[pid=21980] ppid=21978 vsize=8168 CPUtime=9.69
/proc/21980/stat : 21980 (pbct) R 21978 21980 21007 0 -1 4202496 1727 0 0 0 879 90 0 0 25 0 1 0 18809555 8364032 1650 1992294400 134512640 136485738 4293780432 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21980/statm: 2042 1650 223 482 0 1558 0
Current children cumulated CPU time (s) 9.69
Current children cumulated vsize (KiB) 8168

[startup+9.80086 s]
/proc/loadavg: 0.99 0.98 1.00 2/107 21981
/proc/meminfo: memFree=1816000/2059040 swapFree=4140388/4192956
[pid=21980] ppid=21978 vsize=8168 CPUtime=9.79
/proc/21980/stat : 21980 (pbct) R 21978 21980 21007 0 -1 4202496 1727 0 0 0 889 90 0 0 25 0 1 0 18809555 8364032 1650 1992294400 134512640 136485738 4293780432 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/21980/statm: 2042 1650 223 482 0 1558 0
Current children cumulated CPU time (s) 9.79
Current children cumulated vsize (KiB) 8168

Child status: 0
Real time (s): 9.83555
CPU time (s): 9.8335
CPU user time (s): 8.92264
CPU system time (s): 0.910861
CPU usage (%): 99.9791
Max. virtual memory (cumulated for all children) (KiB): 8176

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 8.92264
system time used= 0.910861
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1751
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= 49

runsolver used 0.015997 second user time and 0.06099 second system time

The end

Launcher Data 

Begin job on node004 at 2010-06-13 14:27:37
IDJOB=2668853
IDBENCH=1185
IDSOLVER=1170
FILE ID=node004/2668853-1276432057
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-t2001.13queen13.1111226241.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668853-1276432057/watcher-2668853-1276432057 -o /tmp/evaluation-result-2668853-1276432057/solver-2668853-1276432057 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668853-1276432057.opb

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

MD5SUM BENCH= b7b312369c912d9a28d0c332b741ce41
RANDOM SEED=1163679700

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:       1822612 kB
Buffers:         31276 kB
Cached:         126492 kB
SwapCached:       6528 kB
Active:          93532 kB
Inactive:        77692 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1822612 kB
SwapTotal:     4192956 kB
SwapFree:      4140388 kB
Dirty:            1972 kB
Writeback:           0 kB
AnonPages:       11372 kB
Mapped:          12904 kB
Slab:            43428 kB
PageTables:       3940 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181572 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 14:27:47