Trace number 2668879

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 2.83657 2.83723

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1111216188.opb
MD5SUM73ef9a0af8fe147a7b3ff15d21fca3a0
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 benchmark0.155975
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 1183
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
2.78/2.82	c 2.58061 7.83984 1147 15639
2.78/2.82	s SATISFIABLE
2.78/2.82	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-2668879-1276432187/watcher-2668879-1276432187 -o /tmp/evaluation-result-2668879-1276432187/solver-2668879-1276432187 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668879-1276432187.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 1.05 1.03 3/106 22882
/proc/meminfo: memFree=1828624/2059040 swapFree=4136640/4192956
[pid=22882] ppid=22880 vsize=3384 CPUtime=0
/proc/22882/stat : 22882 (pbct) R 22880 22882 21382 0 -1 4202496 542 0 0 0 0 0 0 0 20 0 1 0 16874127 3465216 464 1992294400 134512640 136485738 4291205360 18446744073709551615 134556736 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22882/statm: 846 469 196 482 0 362 0

[startup+0.0707311 s]
/proc/loadavg: 0.98 1.05 1.03 3/106 22882
/proc/meminfo: memFree=1828624/2059040 swapFree=4136640/4192956
[pid=22882] ppid=22880 vsize=7380 CPUtime=0.06
/proc/22882/stat : 22882 (pbct) R 22880 22882 21382 0 -1 4202496 1542 0 0 0 6 0 0 0 20 0 1 0 16874127 7557120 1464 1992294400 134512640 136485738 4291205360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22882/statm: 1845 1464 223 482 0 1361 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 7380

[startup+0.100733 s]
/proc/loadavg: 0.98 1.05 1.03 3/106 22882
/proc/meminfo: memFree=1828624/2059040 swapFree=4136640/4192956
[pid=22882] ppid=22880 vsize=7380 CPUtime=0.09
/proc/22882/stat : 22882 (pbct) R 22880 22882 21382 0 -1 4202496 1549 0 0 0 8 1 0 0 20 0 1 0 16874127 7557120 1471 1992294400 134512640 136485738 4291205360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22882/statm: 1845 1471 223 482 0 1361 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7380

[startup+0.300749 s]
/proc/loadavg: 0.98 1.05 1.03 3/106 22882
/proc/meminfo: memFree=1828624/2059040 swapFree=4136640/4192956
[pid=22882] ppid=22880 vsize=7640 CPUtime=0.29
/proc/22882/stat : 22882 (pbct) R 22880 22882 21382 0 -1 4202496 1594 0 0 0 27 2 0 0 20 0 1 0 16874127 7823360 1516 1992294400 134512640 136485738 4291205360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22882/statm: 1910 1516 223 482 0 1426 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7640

[startup+0.70078 s]
/proc/loadavg: 0.98 1.05 1.03 3/106 22882
/proc/meminfo: memFree=1828624/2059040 swapFree=4136640/4192956
[pid=22882] ppid=22880 vsize=7768 CPUtime=0.69
/proc/22882/stat : 22882 (pbct) R 22880 22882 21382 0 -1 4202496 1624 0 0 0 63 6 0 0 21 0 1 0 16874127 7954432 1546 1992294400 134512640 136485738 4291205360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22882/statm: 1942 1546 223 482 0 1458 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7768

[startup+1.50084 s]
/proc/loadavg: 0.98 1.05 1.03 2/107 22883
/proc/meminfo: memFree=1823160/2059040 swapFree=4136640/4192956
[pid=22882] ppid=22880 vsize=7768 CPUtime=1.49
/proc/22882/stat : 22882 (pbct) R 22880 22882 21382 0 -1 4202496 1631 0 0 0 136 13 0 0 23 0 1 0 16874127 7954432 1553 1992294400 134512640 136485738 4291205360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22882/statm: 1942 1553 223 482 0 1458 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7768

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

[startup+2.30091 s]
/proc/loadavg: 0.98 1.05 1.03 2/107 22883
/proc/meminfo: memFree=1822912/2059040 swapFree=4136640/4192956
[pid=22882] ppid=22880 vsize=7896 CPUtime=2.29
/proc/22882/stat : 22882 (pbct) R 22880 22882 21382 0 -1 4202496 1661 0 0 0 210 19 0 0 25 0 1 0 16874127 8085504 1583 1992294400 134512640 136485738 4291205360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22882/statm: 1974 1583 223 482 0 1490 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 7896

[startup+2.70094 s]
/proc/loadavg: 0.98 1.05 1.03 2/107 22883
/proc/meminfo: memFree=1822912/2059040 swapFree=4136640/4192956
[pid=22882] ppid=22880 vsize=7896 CPUtime=2.69
/proc/22882/stat : 22882 (pbct) R 22880 22882 21382 0 -1 4202496 1665 0 0 0 247 22 0 0 25 0 1 0 16874127 8085504 1587 1992294400 134512640 136485738 4291205360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22882/statm: 1974 1587 223 482 0 1490 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 7896

[startup+2.80095 s]
/proc/loadavg: 0.98 1.05 1.03 2/107 22883
/proc/meminfo: memFree=1822912/2059040 swapFree=4136640/4192956
[pid=22882] ppid=22880 vsize=8024 CPUtime=2.78
/proc/22882/stat : 22882 (pbct) R 22880 22882 21382 0 -1 4202496 1692 0 0 0 255 23 0 0 25 0 1 0 16874127 8216576 1614 1992294400 134512640 136485738 4291205360 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/22882/statm: 2006 1615 223 482 0 1522 0
Current children cumulated CPU time (s) 2.78
Current children cumulated vsize (KiB) 8024

Child status: 0
Real time (s): 2.83723
CPU time (s): 2.83657
CPU user time (s): 2.5946
CPU system time (s): 0.241963
CPU usage (%): 99.9767
Max. virtual memory (cumulated for all children) (KiB): 8024

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.59461
system time used= 0.241963
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1719
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= 7

runsolver used 0.005999 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node026 at 2010-06-13 14:29:47
IDJOB=2668879
IDBENCH=1211
IDSOLVER=1170
FILE ID=node026/2668879-1276432187
PBS_JOBID= 11173300
Free space on /tmp= 62508 MiB

SOLVER NAME= PB/CT 0.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1111216188.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668879-1276432187/watcher-2668879-1276432187 -o /tmp/evaluation-result-2668879-1276432187/solver-2668879-1276432187 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668879-1276432187.opb

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

MD5SUM BENCH= 73ef9a0af8fe147a7b3ff15d21fca3a0
RANDOM SEED=1667902037

node026.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		: 3000.201
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	: 6000.40
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		: 3000.201
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	: 5599.46
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1829152 kB
Buffers:         29812 kB
Cached:         123196 kB
SwapCached:       9428 kB
Active:         100692 kB
Inactive:        64724 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1829152 kB
SwapTotal:     4192956 kB
SwapFree:      4136640 kB
Dirty:            2076 kB
Writeback:           0 kB
AnonPages:       10912 kB
Mapped:           9176 kB
Slab:            42768 kB
PageTables:       3948 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   179868 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= 62508 MiB
End job on node026 at 2010-06-13 14:29:50