Trace number 358307

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, and are wall clock time (not CPU 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
PBS4 2007-03-23SAT 2.78557 2.78883

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/
wnqueen/normalized-t2001.13queen13.1110969933.opb
MD5SUMbc1af809c45d4fb609c4a61db7aef018
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark0.019996
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 1252
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 (download as text)

0.00/0.00	c PBS v4 by Bashar Al-Rawi & Fadi Aloul
0.00/0.00	c Solving /tmp/evaluation/358307-1176914561/instance-358307-1176914561.opb ......
2.69/2.78	c done parsing opb.
2.69/2.78	s SATISFIABLE
2.69/2.78	c Total Run Time					2.78058
2.69/2.78	v -x1 -x10 -x100 -x101 -x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x11 -x110 -x111 x112 -x113 -x114 -x115 -x116 -x117 -x118
2.69/2.78	v -x119 -x12 -x120 -x121 -x122 -x123 -x124 -x125 -x126 -x127 x128 -x129 -x13 -x130 x131 -x132 -x133 -x134 -x135 -x136 -x137
2.69/2.78	v -x138 -x139 -x14 -x140 -x141 -x142 -x143 -x144 -x145 -x146 x147 -x148 -x149 -x15 -x150 -x151 -x152 -x153 -x154 -x155 -x156
2.69/2.78	v -x157 -x158 -x159 -x16 -x160 -x161 -x162 -x163 -x164 -x165 x166 -x167 -x168 -x169 -x17 -x18 -x19 -x2 -x20 -x21 -x22 -x23 -x24
2.69/2.78	v -x25 x26 -x27 -x28 -x29 -x3 -x30 -x31 x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x4 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 x48 -x49
2.69/2.78	v x5 -x50 -x51 -x52 -x53 -x54 x55 -x56 -x57 -x58 -x59 -x6 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x7 -x70 -x71 -x72 -x73
2.69/2.78	v -x74 -x75 -x76 x77 -x78 -x79 -x8 -x80 -x81 -x82 -x83 -x84 x85 -x86 -x87 -x88 -x89 -x9 -x90 -x91 -x92 x93 -x94 -x95 -x96 -x97 -x98
2.69/2.78	v -x99

Verifier Data (download as text)

OK	0

Conversion Script Data (download as text)

/tmp/evaluation/358307-1176914561/instance-358307-1176914561.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node57/watcher-358307-1176914561 -o ROOT/results/node57/solver-358307-1176914561 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/358307-1176914561/PBS4 /tmp/evaluation/358307-1176914561/instance-358307-1176914561.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): 3600 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
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.87 0.94 0.98 3/64 11933
/proc/meminfo: memFree=1481272/2055920 swapFree=4177380/4192956
[pid=11933] ppid=11931 vsize=1320 CPUtime=0
/proc/11933/stat : 11933 (PBS4) R 11931 11933 11016 0 -1 4194304 143 0 0 0 0 0 0 0 18 0 1 0 132592104 1351680 125 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11933/statm: 330 125 92 219 0 107 0

[startup+0.0890819 s]
/proc/loadavg: 0.87 0.94 0.98 3/64 11933
/proc/meminfo: memFree=1481272/2055920 swapFree=4177380/4192956
[pid=11933] ppid=11931 vsize=1460 CPUtime=0.08
/proc/11933/stat : 11933 (PBS4) R 11931 11933 11016 0 -1 4194304 212 0 0 0 8 0 0 0 18 0 1 0 132592104 1495040 194 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11933/statm: 365 194 92 219 0 142 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1460

[startup+0.101083 s]
/proc/loadavg: 0.87 0.94 0.98 3/64 11933
/proc/meminfo: memFree=1481272/2055920 swapFree=4177380/4192956
[pid=11933] ppid=11931 vsize=1460 CPUtime=0.09
/proc/11933/stat : 11933 (PBS4) R 11931 11933 11016 0 -1 4194304 224 0 0 0 9 0 0 0 18 0 1 0 132592104 1495040 206 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11933/statm: 365 206 92 219 0 142 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1460

[startup+0.3011 s]
/proc/loadavg: 0.87 0.94 0.98 3/64 11933
/proc/meminfo: memFree=1481272/2055920 swapFree=4177380/4192956
[pid=11933] ppid=11931 vsize=2408 CPUtime=0.29
/proc/11933/stat : 11933 (PBS4) R 11931 11933 11016 0 -1 4194304 334 0 0 0 29 0 0 0 19 0 1 0 132592104 2465792 316 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11933/statm: 602 316 93 219 0 379 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2408

[startup+0.701135 s]
/proc/loadavg: 0.87 0.94 0.98 3/64 11933
/proc/meminfo: memFree=1481272/2055920 swapFree=4177380/4192956
[pid=11933] ppid=11931 vsize=3628 CPUtime=0.69
/proc/11933/stat : 11933 (PBS4) R 11931 11933 11016 0 -1 4194304 532 0 0 0 69 0 0 0 23 0 1 0 132592104 3715072 514 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11933/statm: 907 514 93 219 0 684 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3628

[startup+1.5012 s]
/proc/loadavg: 0.87 0.94 0.98 2/65 11934
/proc/meminfo: memFree=1479152/2055920 swapFree=4177380/4192956
[pid=11933] ppid=11931 vsize=3952 CPUtime=1.49
/proc/11933/stat : 11933 (PBS4) R 11931 11933 11016 0 -1 4194304 884 0 0 0 148 1 0 0 25 0 1 0 132592104 4046848 817 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11933/statm: 988 817 94 219 0 765 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3952

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

[startup+2.30127 s]
/proc/loadavg: 0.87 0.94 0.98 2/65 11934
/proc/meminfo: memFree=1477360/2055920 swapFree=4177380/4192956
[pid=11933] ppid=11931 vsize=6264 CPUtime=2.29
/proc/11933/stat : 11933 (PBS4) R 11931 11933 11016 0 -1 4194304 1127 0 0 0 227 2 0 0 25 0 1 0 132592104 6414336 1060 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11933/statm: 1566 1060 94 219 0 1343 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 6264

[startup+2.70131 s]
/proc/loadavg: 0.87 0.94 0.98 2/65 11934
/proc/meminfo: memFree=1477360/2055920 swapFree=4177380/4192956
[pid=11933] ppid=11931 vsize=6784 CPUtime=2.69
/proc/11933/stat : 11933 (PBS4) R 11931 11933 11016 0 -1 4194304 1365 0 0 0 267 2 0 0 25 0 1 0 132592104 6946816 1201 18446744073709551615 134512640 135410514 4294956640 18446744073709551615 135059249 0 0 4096 16384 0 0 0 17 1 0 0
/proc/11933/statm: 1696 1201 94 219 0 1473 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 6784

Child status: 0
Real time (s): 2.78883
CPU time (s): 2.78557
CPU user time (s): 2.75758
CPU system time (s): 0.027995
CPU usage (%): 99.8831
Max. virtual memory (cumulated for all children) (KiB): 6784

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.75758
system time used= 0.027995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1396
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= 8
involuntary context switches= 4

runsolver used 0.001999 second user time and 0.015997 second system time

The end

Launcher Data (download as text)

Begin job on node57 on Wed Apr 18 16:42:41 UTC 2007

IDJOB= 358307
IDBENCH= 1205
IDSOLVER= 157
FILE ID= node57/358307-1176914561

PBS_JOBID= 4595209

Free space on /tmp= 66455 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/wnqueen/normalized-t2001.13queen13.1110969933.opb
COMMAND LINE= /tmp/evaluation/358307-1176914561/PBS4 /tmp/evaluation/358307-1176914561/instance-358307-1176914561.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node57/convwatcher-358307-1176914561 -o ROOT/results/node57/conversion-358307-1176914561 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/358307-1176914561/instance-358307-1176914561.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node57/watcher-358307-1176914561 -o ROOT/results/node57/solver-358307-1176914561 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/358307-1176914561/PBS4 /tmp/evaluation/358307-1176914561/instance-358307-1176914561.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  bc1af809c45d4fb609c4a61db7aef018

RANDOM SEED= 118058436

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node57.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.239
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
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		: 3000.239
cache size	: 2048 KB
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 pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1481680 kB
Buffers:         17792 kB
Cached:         498980 kB
SwapCached:       9276 kB
Active:          94696 kB
Inactive:       437436 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1481680 kB
SwapTotal:     4192956 kB
SwapFree:      4177380 kB
Dirty:            1148 kB
Writeback:           0 kB
Mapped:          15692 kB
Slab:            28180 kB
Committed_AS:   869864 kB
PageTables:       1408 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66455 MiB

End job on node57 on Wed Apr 18 16:42:44 UTC 2007