Trace number 458635

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 NameAnswerObjective functionCPU timeWall clock time
PBS4_v2 2007-03-23OPT262288 2.16767 2.17007

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/
miplib/normalized-reduced-mps-v2-20-10-misc01.opb
MD5SUMc2934cbe264e98064d53d09fc14b43dc
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark262288
Best CPU time to get the best result obtained on this benchmark0.583911
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 262288
Optimality of the best value was proved YES
Number of variables113
Total number of constraints54
Number of constraints which are clauses15
Number of constraints which are cardinality constraints (but not clauses)6
Number of constraints which are nor clauses,nor cardinality constraints33
Minimum length of a constraint5
Maximum length of a constraint101
Number of terms in the objective function 31
Biggest coefficient in the objective function 262145
Number of bits for the biggest coefficient in the objective function 19
Sum of the numbers in the objective function 524318
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262145
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 524336
Number of bits of the biggest sum of numbers20
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

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/458635-1178638823/instance-458635-1178638823.opb ......
0.00/0.00	c done parsing opb.
0.00/0.00	o 262330
0.00/0.00	o 262306
0.00/0.00	o 262300
0.00/0.00	o 262294
0.00/0.05	o 262290
0.00/0.07	o 262289
0.09/0.12	o 262288
2.10/2.16	o 262288
2.10/2.16	s OPTIMUM FOUND
2.10/2.16	c Total Run Time					2.16367
2.10/2.16	v -x1 -x10 -x100 -x101 x102 -x103 -x104 -x105 -x106 -x107 -x108 -x109 -x11 -x110 -x111 -x112 x113 -x12 x13 -x14 -x15 -x16 -x17
2.10/2.16	v -x18 -x19 -x2 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27 -x28 -x29 -x3 -x30 -x31 -x32 -x33 -x34 -x35 x36 -x37 -x38 -x39 -x4 -x40 -x41
2.10/2.16	v x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x5 -x50 x51 -x52 -x53 -x54 -x55 -x56 -x57 -x58 -x59 -x6 -x60 -x61 -x62 -x63 -x64 -x65 -x66
2.10/2.16	v -x67 x68 -x69 -x7 -x70 -x71 -x72 x73 x74 x75 -x76 x77 -x78 -x79 -x8 x80 -x81 x82 x83 x84 x85 x86 x87 x88 x89 x9 -x90 x91 x92 x93 x94
2.10/2.16	v -x95 x96 -x97 -x98 -x99

Verifier Data (download as text)

OK	262288

Conversion Script Data (download as text)

/tmp/evaluation/458635-1178638823/instance-458635-1178638823.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node5/watcher-458635-1178638823 -o ROOT/results/node5/solver-458635-1178638823 -C 1800 -W 3600 -M 1800 --output-limit 1,15 PBS4_SAT07v2 /tmp/evaluation/458635-1178638823/instance-458635-1178638823.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: 0.84 0.95 0.98 3/77 26819
/proc/meminfo: memFree=1711408/2055920 swapFree=4150040/4192956
[pid=26819] ppid=26817 vsize=1320 CPUtime=0
/proc/26819/stat : 26819 (PBS4_SAT07v2) R 26817 26819 26754 0 -1 4194304 136 0 0 0 0 0 0 0 18 0 1 0 339919976 1351680 118 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26819/statm: 330 118 90 219 0 107 0

[startup+0.0856269 s]
/proc/loadavg: 0.84 0.95 0.98 3/77 26819
/proc/meminfo: memFree=1711408/2055920 swapFree=4150040/4192956
[pid=26819] ppid=26817 vsize=1452 CPUtime=0.08
/proc/26819/stat : 26819 (PBS4_SAT07v2) R 26817 26819 26754 0 -1 4194304 237 0 0 0 8 0 0 0 18 0 1 0 339919976 1486848 219 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26819/statm: 363 219 102 219 0 140 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1452

[startup+0.101628 s]
/proc/loadavg: 0.84 0.95 0.98 3/77 26819
/proc/meminfo: memFree=1711408/2055920 swapFree=4150040/4192956
[pid=26819] ppid=26817 vsize=1708 CPUtime=0.09
/proc/26819/stat : 26819 (PBS4_SAT07v2) R 26817 26819 26754 0 -1 4194304 253 0 0 0 9 0 0 0 18 0 1 0 339919976 1748992 235 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26819/statm: 427 235 102 219 0 204 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1708

[startup+0.301651 s]
/proc/loadavg: 0.84 0.95 0.98 3/77 26819
/proc/meminfo: memFree=1711408/2055920 swapFree=4150040/4192956
[pid=26819] ppid=26817 vsize=2384 CPUtime=0.29
/proc/26819/stat : 26819 (PBS4_SAT07v2) R 26817 26819 26754 0 -1 4194304 447 0 0 0 29 0 0 0 19 0 1 0 339919976 2441216 429 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26819/statm: 596 429 102 219 0 373 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2384

[startup+0.701696 s]
/proc/loadavg: 0.84 0.95 0.98 3/77 26819
/proc/meminfo: memFree=1711408/2055920 swapFree=4150040/4192956
[pid=26819] ppid=26817 vsize=3604 CPUtime=0.69
/proc/26819/stat : 26819 (PBS4_SAT07v2) R 26817 26819 26754 0 -1 4194304 714 0 0 0 69 0 0 0 23 0 1 0 339919976 3690496 696 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26819/statm: 901 697 102 219 0 678 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3604

[startup+1.50179 s]
/proc/loadavg: 0.84 0.95 0.98 2/78 26820
/proc/meminfo: memFree=1708264/2055920 swapFree=4150040/4192956
[pid=26819] ppid=26817 vsize=6112 CPUtime=1.49
/proc/26819/stat : 26819 (PBS4_SAT07v2) R 26817 26819 26754 0 -1 4194304 1011 0 0 0 149 0 0 0 25 0 1 0 339919976 6258688 944 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26819/statm: 1528 944 102 219 0 1305 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6112

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

[startup+1.90183 s]
/proc/loadavg: 0.84 0.95 0.98 2/78 26820
/proc/meminfo: memFree=1708264/2055920 swapFree=4150040/4192956
[pid=26819] ppid=26817 vsize=6248 CPUtime=1.89
/proc/26819/stat : 26819 (PBS4_SAT07v2) R 26817 26819 26754 0 -1 4194304 1135 0 0 0 188 1 0 0 25 0 1 0 339919976 6397952 1068 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26819/statm: 1562 1068 102 219 0 1339 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 6248

[startup+2.10185 s]
/proc/loadavg: 0.85 0.95 0.98 2/78 26820
/proc/meminfo: memFree=1707112/2055920 swapFree=4150040/4192956
[pid=26819] ppid=26817 vsize=6248 CPUtime=2.1
/proc/26819/stat : 26819 (PBS4_SAT07v2) R 26817 26819 26754 0 -1 4194304 1199 0 0 0 209 1 0 0 25 0 1 0 339919976 6397952 1132 18446744073709551615 134512640 135410602 4294956704 18446744073709551615 135059409 0 0 4096 16384 0 0 0 17 1 0 0
/proc/26819/statm: 1562 1132 102 219 0 1339 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 6248

Child status: 0
Real time (s): 2.17007
CPU time (s): 2.16767
CPU user time (s): 2.15567
CPU system time (s): 0.011998
CPU usage (%): 99.8894
Max. virtual memory (cumulated for all children) (KiB): 6248

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.15567
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1224
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= 45

runsolver used 0.002999 second user time and 0.011998 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Tue May  8 15:40:23 UTC 2007

IDJOB= 458635
IDBENCH= 1756
IDSOLVER= 200
FILE ID= node5/458635-1178638823

PBS_JOBID= 5217823

Free space on /tmp= 66562 MiB

SOLVER NAME= PBS4_v2 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/miplib/normalized-reduced-mps-v2-20-10-misc01.opb
COMMAND LINE= PBS4_SAT07v2 /tmp/evaluation/458635-1178638823/instance-458635-1178638823.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node5/convwatcher-458635-1178638823 -o ROOT/results/node5/conversion-458635-1178638823 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/458635-1178638823/instance-458635-1178638823.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-458635-1178638823 -o ROOT/results/node5/solver-458635-1178638823 -C 1800 -W 3600 -M 1800 --output-limit 1,15  PBS4_SAT07v2 /tmp/evaluation/458635-1178638823/instance-458635-1178638823.opb

META MD5SUM SOLVER= 18cd8c68a4d3bfb01f29079966475a33
MD5SUM BENCH=  c2934cbe264e98064d53d09fc14b43dc

RANDOM SEED= 760621010

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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		: 3000.232
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		: 3000.232
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:       1711816 kB
Buffers:         36316 kB
Cached:         236960 kB
SwapCached:      10964 kB
Active:          95080 kB
Inactive:       200804 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1711816 kB
SwapTotal:     4192956 kB
SwapFree:      4150040 kB
Dirty:            2468 kB
Writeback:           0 kB
Mapped:          29548 kB
Slab:            33860 kB
Committed_AS: 13919308 kB
PageTables:       1720 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= 66562 MiB

End job on node5 on Tue May  8 15:40:26 UTC 2007