Trace number 1877351

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 0.26096 0.261599

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/
namasivayam/tsp/normalized-t3002.11tsp11.1900554389.opb
MD5SUMfa7503c73050df8d21f546636c8bda5e
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 benchmark0.204968
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables231
Total number of constraints2707
Number of constraints which are clauses2684
Number of constraints which are cardinality constraints (but not clauses)22
Number of constraints which are nor clauses,nor cardinality constraints1
Minimum length of a constraint2
Maximum length of a constraint110
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 25
Number of bits of the biggest number in a constraint 5
Biggest sum of numbers in a constraint 669
Number of bits of the biggest sum of numbers10
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-1877351-1245117618.opb
0.00/0.00	c File size is 83377 bytes.
0.01/0.01	c Highest Coefficient sum: 669
0.01/0.01	c Parsing was ok!!
0.01/0.01	c Total parsing time: 0.011 s
0.01/0.01	c Var: 231 Constr: 2707 2684/22/1 Lit: 8338 Watch. Lit: 5706
0.01/0.01	c Obj. Vars: 0 (0 % of total variables)
0.01/0.02	c Pre-processing Time: 0.021 s
0.01/0.02	c    Confl   Vars     Ctrs     Lits  LPC   W.Lits     Max Learnt Conf/s Time
0.01/0.02	c        0    231     2586     8096    3     5473    1880      0      0 0.02
0.01/0.02	c Switching off lower bounding mode.
0.19/0.26	c      100    231     2757    13527    4     5820    2069    171   2777 0.04
0.19/0.26	c      250    231     2948    21536    7     6203    2276    362   3787 0.07
0.19/0.26	c      475    231     3208    33504   10     6726    2504    622   3571 0.13
0.19/0.26	c      813    231     3574    47197   13     7459    2755    988   3345 0.24
0.19/0.26	c Backtracks by Clause: 862
0.19/0.26	c Backtracks by PB constraint: 0
0.19/0.26	v -x1 -x12 -x2 -x13 -x3 x14 -x4 -x15 -x5 -x16 -x6 -x17 -x7 -x18 -x8 -x19 x9 -x20 -x10 -x21 -x11 -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 -x132 -x142 x152 -x162 -x172 -x182 -x192 -x202 -x212 -x222 -x122 -x143 -x153 -x163 x173 -x183 -x193 -x203 -x213 -x223 -x123 -x133 -x154 -x164 -x174 -x184 -x194 x204 -x214 -x224 -x124 x134 -x144 -x165 -x175 -x185 -x195 -x205 -x215 -x225 -x125 -x135 x145 -x155 -x176 -x186 -x196 -x206 -x216 -x226 -x126 -x136 -x146 -x156 x166 -x187 -x197 -x207 -x217 -x227 -x127 -x137 -x147 -x157 -x167 -x177 -x198 -x208 -x218 x228 x128 -x138 -x148 -x158 -x168 -x178 -x188 -x209 -x219 -x229 -x129 -x139 -x149 -x159 -x169 -x179 -x189 -x199 x220 -x230 -x130 -x140 -x150 -x160 -x170 -x180 x190 -x200 -x210 -x231 -x131 -x141 -x151 -x161 -x171 -x181 -x191 x201 -x211 -x221 
0.19/0.26	c  Rst    Confl    NCB      Dec     Ctrs     Lits Learnt Conf/s Time
0.19/0.26	c    4      862    285     2569     3623    48908   1037   3328 0.26
0.19/0.26	s SATISFIABLE
0.19/0.26	c Total time: 0.259 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-1877351-1245117618/watcher-1877351-1245117618 -o /tmp/evaluation-result-1877351-1245117618/solver-1877351-1245117618 -C 1800 -W 2000 -M 1800 bsolo -l2 -t1800 -m1800 HOME/instance-1877351-1245117618.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: 1.00 0.98 1.00 3/65 324
/proc/meminfo: memFree=890032/2055920 swapFree=4192812/4192956
[pid=324] ppid=322 vsize=10792 CPUtime=0
/proc/324/stat : 324 (bsolo) R 322 324 32018 0 -1 4194304 253 0 0 0 0 0 0 0 20 0 1 0 168288228 11051008 237 1992294400 134512640 137136520 4294956256 18446744073709551615 136504651 0 0 4096 16384 0 0 0 17 1 0 0
/proc/324/statm: 2698 237 175 640 0 2033 0

[startup+0.0124751 s]
/proc/loadavg: 1.00 0.98 1.00 3/65 324
/proc/meminfo: memFree=890032/2055920 swapFree=4192812/4192956
[pid=324] ppid=322 vsize=10932 CPUtime=0.01
/proc/324/stat : 324 (bsolo) R 322 324 32018 0 -1 4194304 318 0 0 0 1 0 0 0 20 0 1 0 168288228 11194368 302 1992294400 134512640 137136520 4294956256 18446744073709551615 136575102 0 0 4096 16384 0 0 0 17 1 0 0
/proc/324/statm: 2733 302 189 640 0 2068 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 10932

[startup+0.101483 s]
/proc/loadavg: 1.00 0.98 1.00 3/65 324
/proc/meminfo: memFree=890032/2055920 swapFree=4192812/4192956
[pid=324] ppid=322 vsize=11364 CPUtime=0.09
/proc/324/stat : 324 (bsolo) R 322 324 32018 0 -1 4194304 463 0 0 0 9 0 0 0 20 0 1 0 168288228 11636736 426 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/324/statm: 2841 426 196 640 0 2197 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 11364

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

[startup+0.201492 s]
/proc/loadavg: 1.00 0.98 1.00 3/65 324
/proc/meminfo: memFree=890032/2055920 swapFree=4192812/4192956
[pid=324] ppid=322 vsize=11608 CPUtime=0.19
/proc/324/stat : 324 (bsolo) R 322 324 32018 0 -1 4194304 520 0 0 0 19 0 0 0 21 0 1 0 168288228 11886592 483 1992294400 134512640 137136520 4294956256 18446744073709551615 136568305 0 0 4096 16384 0 0 0 17 1 0 0
/proc/324/statm: 2902 483 197 640 0 2258 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 11608

Child status: 0
Real time (s): 0.261599
CPU time (s): 0.26096
CPU user time (s): 0.255961
CPU system time (s): 0.004999
CPU usage (%): 99.7557
Max. virtual memory (cumulated for all children) (KiB): 11608

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.255961
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 547
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 0.004999 second user time and 0.003999 second system time

The end

Launcher Data 

Begin job on node8 at 2009-06-16 04:00:18
IDJOB=1877351
IDBENCH=1286
IDSOLVER=699
FILE ID=node8/1877351-1245117618
PBS_JOBID= 9363662
Free space on /tmp= 66316 MiB

SOLVER NAME= bsolo 3.1
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB06/namasivayam/tsp/normalized-t3002.11tsp11.1900554389.opb
COMMAND LINE= bsolo -l2 -tTIMEOUT -mMEMLIMIT BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1877351-1245117618/watcher-1877351-1245117618 -o /tmp/evaluation-result-1877351-1245117618/solver-1877351-1245117618 -C 1800 -W 2000 -M 1800  bsolo -l2 -t1800 -m1800 HOME/instance-1877351-1245117618.opb

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

MD5SUM BENCH= fa7503c73050df8d21f546636c8bda5e
RANDOM SEED=1909183961

node8.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		: 3000.234
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		: 3000.234
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:        890448 kB
Buffers:         89568 kB
Cached:         965584 kB
SwapCached:        140 kB
Active:         150212 kB
Inactive:       919944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        890448 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4248 kB
Writeback:           0 kB
Mapped:          24600 kB
Slab:            81112 kB
Committed_AS:   159652 kB
PageTables:       1376 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66312 MiB
End job on node8 at 2009-06-16 04:00:18