Trace number 1877233

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
bsolo 3.1SAT 0.215966 0.215972

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
prestwich/armies/normalized-army8.9ls.opb
MD5SUMf22ee27ae396dfbceb6d2e4359af424f
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 benchmark0.026994
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables220
Total number of constraints332
Number of constraints which are clauses202
Number of constraints which are cardinality constraints (but not clauses)2
Number of constraints which are nor clauses,nor cardinality constraints128
Minimum length of a constraint2
Maximum length of a constraint64
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 9
Number of bits of the biggest number in a constraint 4
Biggest sum of numbers in a constraint 73
Number of bits of the biggest sum of numbers7
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 bsolo beta version 3.1 - 13/04/2009 : 1630 GMT
0.00/0.00	c Developed by Vasco Manquinho and José Santos IST/UTL - INESC-ID
0.00/0.00	c type "bsolo -h" for help
0.00/0.00	c Time Limit set via environment variable PBTIMEOUT to 1800
0.00/0.00	c Learning Strategy: Cardinality Constraint Learning
0.00/0.00	c Time Limit set to 1800
0.00/0.00	c Memory Limit set to 1800 MB
0.00/0.00	c Instance file HOME/instance-1877233-1245114066.opb
0.00/0.00	c File size is 14615 bytes.
0.00/0.00	c Highest Coefficient sum: 73
0.00/0.00	c Parsing was ok!!
0.00/0.00	c Total parsing time: 0.001 s
0.00/0.00	c Var: 220 Constr: 332 202/2/128 Lit: 1592 Watch. Lit: 1064
0.00/0.00	c Obj. Vars: 0 (0 % of total variables)
0.00/0.00	c Pre-processing Time: 0.007 s
0.00/0.00	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.00/0.00	c        0    212      320     1560    4     1032    1711      0      0 0.01
0.00/0.00	c Switching off lower bounding mode.
0.19/0.21	c      103    212      424     9930   23     1240    1883    104   3814 0.03
0.19/0.21	c      253    212      578    22986   39     1548    2072    258   4216 0.06
0.19/0.21	c      478    212      805    41996   52     2002    2280    485   4120 0.12
0.19/0.21	c      818    212     1164    69859   60     2720    2509    844   3895 0.21
0.19/0.21	c Backtracks by Clause: 829
0.19/0.21	c Backtracks by PB constraint: 0
0.19/0.21	v -x1 -x3 -x5 -x7 -x9 -x11 -x13 -x15 -x17 -x19 -x21 -x23 -x25 -x27 -x29 -x31 -x33 -x35 -x37 -x39 -x41 x43 x45 x47 -x49 -x51 -x53 -x55 -x57 -x59 x61 x63 -x65 -x67 -x69 -x71 -x73 -x75 -x77 x79 -x81 -x83 -x85 -x87 -x89 -x91 -x93 -x95 -x97 -x99 -x101 -x103 -x105 -x107 -x109 -x111 -x113 -x115 -x117 -x119 x121 x123 x125 -x127 x2 x4 x6 -x8 -x10 -x12 -x14 -x16 -x18 x20 x22 x24 -x26 -x28 -x30 -x32 -x34 -x36 -x38 -x40 -x42 -x44 -x46 -x48 -x50 -x52 -x54 -x56 -x58 -x60 -x62 -x64 -x66 -x68 -x70 -x72 -x74 -x76 -x78 -x80 x82 x84 -x86 -x88 -x90 -x92 -x94 -x96 x98 -x100 -x102 -x104 -x106 -x108 -x110 -x112 -x114 -x116 -x118 -x120 -x122 -x124 -x126 -x128 -x130 x129 -x132 x131 x134 -x133 x136 -x135 x138 -x137 -x140 x139 -x142 x141 x144 -x143 -x146 x145 -x148 x147 -x150 x149 -x152 x151 x154 -x153 x156 -x155 x158 -x157 x160 -x159 -x162 x161 x164 -x163 x166 -x165 x168 -x167 -x170 x169 -x172 x171 -x174 x173 -x176 -x175 -x178 x177 -x180 x179 -x182 x181 -x184 x183 -x186 x185 -x188 x187 -x190 x189 x192 -x191 x194 -x193 x196 -x195 x198 -x197 x200 -x199 x202 -x201 x204 -x203 -x206 -x205 -x208 -x207 -x210 -x209 x212 -x211 x214 -x213 x216 -x215 -x218 x217 -x220 x219 
0.19/0.21	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.21	c    4      829    198     1901     1176    70807    856   3892 0.21
0.19/0.21	s SATISFIABLE
0.19/0.21	c Total time: 0.213 s

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-1877233-1245114066/watcher-1877233-1245114066 -o /tmp/evaluation-result-1877233-1245114066/solver-1877233-1245114066 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877233-1245114066.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: 1.06 0.98 1.06 3/64 2579
/proc/meminfo: memFree=1831160/2055920 swapFree=4182468/4192956
[pid=2579] ppid=2577 vsize=10708 CPUtime=0
/proc/2579/stat : 2579 (bsolo) R 2577 2579 2416 0 -1 4194304 268 0 0 0 0 0 0 0 18 0 1 0 179006505 10964992 248 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2579/statm: 2677 248 189 640 0 2033 0

[startup+0.0456679 s]
/proc/loadavg: 1.06 0.98 1.06 3/64 2579
/proc/meminfo: memFree=1831160/2055920 swapFree=4182468/4192956
[pid=2579] ppid=2577 vsize=10956 CPUtime=0.04
/proc/2579/stat : 2579 (bsolo) R 2577 2579 2416 0 -1 4194304 330 0 0 0 4 0 0 0 18 0 1 0 179006505 11218944 310 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2579/statm: 2739 310 198 640 0 2095 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 10956

[startup+0.101673 s]
/proc/loadavg: 1.06 0.98 1.06 3/64 2579
/proc/meminfo: memFree=1831160/2055920 swapFree=4182468/4192956
[pid=2579] ppid=2577 vsize=11204 CPUtime=0.09
/proc/2579/stat : 2579 (bsolo) R 2577 2579 2416 0 -1 4194304 403 0 0 0 9 0 0 0 18 0 1 0 179006505 11472896 383 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2579/statm: 2801 383 198 640 0 2157 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11204

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

[startup+0.201684 s]
/proc/loadavg: 1.06 0.98 1.06 3/64 2579
/proc/meminfo: memFree=1831160/2055920 swapFree=4182468/4192956
[pid=2579] ppid=2577 vsize=11580 CPUtime=0.19
/proc/2579/stat : 2579 (bsolo) R 2577 2579 2416 0 -1 4194304 507 0 0 0 19 0 0 0 18 0 1 0 179006505 11857920 487 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/2579/statm: 2895 487 198 640 0 2251 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 11580

Child status: 0
Real time (s): 0.215972
CPU time (s): 0.215966
CPU user time (s): 0.211967
CPU system time (s): 0.003999
CPU usage (%): 99.9973
Max. virtual memory (cumulated for all children) (KiB): 11580

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.211967
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 527
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= 0

runsolver used 0.003999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node23 at 2009-06-16 03:01:06
IDJOB=1877233
IDBENCH=1162
IDSOLVER=699
FILE ID=node23/1877233-1245114066
PBS_JOBID= 9363640
Free space on /tmp= 66272 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/prestwich/armies/normalized-army8.9ls.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877233-1245114066/watcher-1877233-1245114066 -o /tmp/evaluation-result-1877233-1245114066/solver-1877233-1245114066 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877233-1245114066.opb

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

MD5SUM BENCH= f22ee27ae396dfbceb6d2e4359af424f
RANDOM SEED=736571430

node23.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.236
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		: 3000.236
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:       1831576 kB
Buffers:         22576 kB
Cached:         139704 kB
SwapCached:       4048 kB
Active:          18764 kB
Inactive:       151132 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1831576 kB
SwapTotal:     4192956 kB
SwapFree:      4182468 kB
Dirty:            4100 kB
Writeback:           0 kB
Mapped:          14544 kB
Slab:            40408 kB
Committed_AS:   142280 kB
PageTables:       1392 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= 66268 MiB
End job on node23 at 2009-06-16 03:01:06