Trace number 2668875

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 22.3106 22.3175

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110977464.opb
MD5SUMb0491ed63ac891b703b860682674b01c
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 benchmark0.095985
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 1205
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
22.28/22.30	c 20.1709 8.08594 2313 114834
22.28/22.30	s SATISFIABLE
22.28/22.30	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-2668875-1276432169/watcher-2668875-1276432169 -o /tmp/evaluation-result-2668875-1276432169/solver-2668875-1276432169 -C 1800 -W 2000 -M 1800 HOME/pbct --model HOME/instance-2668875-1276432169.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: 0.99 0.97 0.99 3/106 23408
/proc/meminfo: memFree=1831828/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=3384 CPUtime=0
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 539 0 0 0 0 0 0 0 24 0 1 0 18820356 3465216 461 1992294400 134512640 136485738 4289841040 18446744073709551615 135850441 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 846 465 193 482 0 362 0

[startup+0.069806 s]
/proc/loadavg: 0.99 0.97 0.99 3/106 23408
/proc/meminfo: memFree=1831828/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=7380 CPUtime=0.06
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 1542 0 0 0 6 0 0 0 24 0 1 0 18820356 7557120 1464 1992294400 134512640 136485738 4289841040 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 1845 1464 223 482 0 1361 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 7380

[startup+0.100811 s]
/proc/loadavg: 0.99 0.97 0.99 3/106 23408
/proc/meminfo: memFree=1831828/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=7380 CPUtime=0.09
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 1547 0 0 0 8 1 0 0 24 0 1 0 18820356 7557120 1469 1992294400 134512640 136485738 4289841040 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 1845 1469 223 482 0 1361 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 7380

[startup+0.300848 s]
/proc/loadavg: 0.99 0.97 0.99 3/106 23408
/proc/meminfo: memFree=1831828/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=7636 CPUtime=0.29
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 1590 0 0 0 26 3 0 0 24 0 1 0 18820356 7819264 1512 1992294400 134512640 136485738 4289841040 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 1909 1512 223 482 0 1425 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 7636

[startup+0.700922 s]
/proc/loadavg: 0.99 0.97 0.99 3/106 23408
/proc/meminfo: memFree=1831828/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=7636 CPUtime=0.69
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 1618 0 0 0 63 6 0 0 25 0 1 0 18820356 7819264 1540 1992294400 134512640 136485738 4289841040 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 1909 1540 223 482 0 1425 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7636

[startup+1.50107 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23409
/proc/meminfo: memFree=1826240/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=7892 CPUtime=1.49
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 1655 0 0 0 136 13 0 0 25 0 1 0 18820356 8081408 1577 1992294400 134512640 136485738 4289841040 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 1973 1577 223 482 0 1489 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 7892

[startup+3.10137 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23409
/proc/meminfo: memFree=1825992/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=7892 CPUtime=3.09
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 1662 0 0 0 278 31 0 0 25 0 1 0 18820356 8081408 1584 1992294400 134512640 136485738 4289841040 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 1973 1584 223 482 0 1489 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 7892

[startup+6.30096 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23409
/proc/meminfo: memFree=1825868/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=8020 CPUtime=6.29
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 1703 0 0 0 569 60 0 0 25 0 1 0 18820356 8212480 1625 1992294400 134512640 136485738 4289841040 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 2005 1625 223 482 0 1521 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 8020

[startup+12.7011 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23411
/proc/meminfo: memFree=1825372/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=8276 CPUtime=12.68
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 1758 0 0 0 1146 122 0 0 25 0 1 0 18820356 8474624 1680 1992294400 134512640 136485738 4289841040 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 2069 1680 223 482 0 1585 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 8276

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

[startup+19.1013 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23411
/proc/meminfo: memFree=1825372/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=8276 CPUtime=19.09
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 1765 0 0 0 1727 182 0 0 25 0 1 0 18820356 8474624 1687 1992294400 134512640 136485738 4289841040 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 2069 1687 223 482 0 1585 0
Current children cumulated CPU time (s) 19.09
Current children cumulated vsize (KiB) 8276

[startup+20.7006 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23411
/proc/meminfo: memFree=1825372/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=8276 CPUtime=20.68
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 1765 0 0 0 1872 196 0 0 25 0 1 0 18820356 8474624 1687 1992294400 134512640 136485738 4289841040 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 2069 1687 223 482 0 1585 0
Current children cumulated CPU time (s) 20.68
Current children cumulated vsize (KiB) 8276

[startup+21.5008 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23411
/proc/meminfo: memFree=1825372/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=8276 CPUtime=21.48
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 1765 0 0 0 1944 204 0 0 25 0 1 0 18820356 8474624 1687 1992294400 134512640 136485738 4289841040 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 2069 1687 223 482 0 1585 0
Current children cumulated CPU time (s) 21.48
Current children cumulated vsize (KiB) 8276

[startup+21.9008 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23411
/proc/meminfo: memFree=1825372/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=8276 CPUtime=21.89
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 1765 0 0 0 1980 209 0 0 25 0 1 0 18820356 8474624 1687 1992294400 134512640 136485738 4289841040 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 2069 1687 223 482 0 1585 0
Current children cumulated CPU time (s) 21.89
Current children cumulated vsize (KiB) 8276

[startup+22.3009 s]
/proc/loadavg: 0.99 0.97 0.99 2/107 23411
/proc/meminfo: memFree=1825372/2059040 swapFree=4140476/4192956
[pid=23408] ppid=23406 vsize=8276 CPUtime=22.28
/proc/23408/stat : 23408 (pbct) R 23406 23408 23028 0 -1 4202496 1765 0 0 0 2016 212 0 0 25 0 1 0 18820356 8474624 1687 1992294400 134512640 136485738 4289841040 18446744073709551615 135913329 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/23408/statm: 2069 1687 223 482 0 1585 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 8276

Child status: 0
Real time (s): 22.3175
CPU time (s): 22.3106
CPU user time (s): 20.1839
CPU system time (s): 2.12668
CPU usage (%): 99.9693
Max. virtual memory (cumulated for all children) (KiB): 8276

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 20.1839
system time used= 2.12668
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1789
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= 35

runsolver used 0.038994 second user time and 0.114982 second system time

The end

Launcher Data 

Begin job on node007 at 2010-06-13 14:29:29
IDJOB=2668875
IDBENCH=1207
IDSOLVER=1170
FILE ID=node007/2668875-1276432169
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-t2001.13queen13.1110977464.opb
COMMAND LINE= HOME/pbct --model BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2668875-1276432169/watcher-2668875-1276432169 -o /tmp/evaluation-result-2668875-1276432169/solver-2668875-1276432169 -C 1800 -W 2000 -M 1800  HOME/pbct --model HOME/instance-2668875-1276432169.opb

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

MD5SUM BENCH= b0491ed63ac891b703b860682674b01c
RANDOM SEED=2127413812

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:       1832232 kB
Buffers:         24504 kB
Cached:         122860 kB
SwapCached:       6692 kB
Active:         102304 kB
Inactive:        58612 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1832232 kB
SwapTotal:     4192956 kB
SwapFree:      4140476 kB
Dirty:            2148 kB
Writeback:           0 kB
AnonPages:       11068 kB
Mapped:          13028 kB
Slab:            44108 kB
PageTables:       3920 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   181888 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 14:29:51