Trace number 363241

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 2007-03-23UNSAT 26.7119 26.7203

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/
MIPLIB/miplib2003/normalized-reduced-mps-v2-20-10-momentum2.opb
MD5SUM321e9d4e6ed80bc00fdeca5e2a9625ff
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark6.52701
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables25930
Total number of constraints22640
Number of constraints which are clauses10362
Number of constraints which are cardinality constraints (but not clauses)103
Number of constraints which are nor clauses,nor cardinality constraints12175
Minimum length of a constraint1
Maximum length of a constraint913
Number of terms in the objective function 24130
Biggest coefficient in the objective function 94430
Number of bits for the biggest coefficient in the objective function 17
Sum of the numbers in the objective function 544308
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 371834
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 544308
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

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/363241-1177024700/instance-363241-1177024700.opb ......
26.68/26.70	c done parsing opb.
26.68/26.70	s UNSATISFIABLE
26.68/26.70	c Total Run Time					0.056991

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/363241-1177024700/instance-363241-1177024700.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/node4/watcher-363241-1177024700 -o ROOT/results/node4/solver-363241-1177024700 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/363241-1177024700/PBS4 /tmp/evaluation/363241-1177024700/instance-363241-1177024700.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: 0.94 1.01 0.99 3/77 13600
/proc/meminfo: memFree=1716432/2055920 swapFree=4153812/4192956
[pid=13600] ppid=13598 vsize=3756 CPUtime=0
/proc/13600/stat : 13600 (PBS4) R 13598 13600 12140 0 -1 4194304 490 0 0 0 0 0 0 0 18 0 1 0 178507793 3846144 473 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134572872 0 0 4096 0 0 0 0 17 1 0 0
/proc/13600/statm: 939 476 81 219 0 716 0

[startup+0.050556 s]
/proc/loadavg: 0.94 1.01 0.99 3/77 13600
/proc/meminfo: memFree=1716432/2055920 swapFree=4153812/4192956
[pid=13600] ppid=13598 vsize=5400 CPUtime=0.04
/proc/13600/stat : 13600 (PBS4) R 13598 13600 12140 0 -1 4194304 1125 0 0 0 4 0 0 0 18 0 1 0 178507793 5529600 1107 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134529910 0 0 4096 0 0 0 0 17 1 0 0
/proc/13600/statm: 1350 1108 86 219 0 1127 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 5400

[startup+0.10156 s]
/proc/loadavg: 0.94 1.01 0.99 3/77 13600
/proc/meminfo: memFree=1716432/2055920 swapFree=4153812/4192956
[pid=13600] ppid=13598 vsize=6124 CPUtime=0.09
/proc/13600/stat : 13600 (PBS4) R 13598 13600 12140 0 -1 4194304 1319 0 0 0 9 0 0 0 18 0 1 0 178507793 6270976 1268 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134532542 0 0 4096 0 0 0 0 17 1 0 0
/proc/13600/statm: 1531 1268 87 219 0 1308 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 6124

[startup+0.301579 s]
/proc/loadavg: 0.94 1.01 0.99 3/77 13600
/proc/meminfo: memFree=1716432/2055920 swapFree=4153812/4192956
[pid=13600] ppid=13598 vsize=6304 CPUtime=0.29
/proc/13600/stat : 13600 (PBS4) R 13598 13600 12140 0 -1 4194304 1381 0 0 0 29 0 0 0 19 0 1 0 178507793 6455296 1330 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588284 0 0 4096 0 0 0 0 17 1 0 0
/proc/13600/statm: 1576 1330 88 219 0 1353 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6304

[startup+0.701617 s]
/proc/loadavg: 0.94 1.01 0.99 3/77 13600
/proc/meminfo: memFree=1716432/2055920 swapFree=4153812/4192956
[pid=13600] ppid=13598 vsize=6304 CPUtime=0.69
/proc/13600/stat : 13600 (PBS4) R 13598 13600 12140 0 -1 4194304 1381 0 0 0 69 0 0 0 23 0 1 0 178507793 6455296 1330 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588380 0 0 4096 0 0 0 0 17 1 0 0
/proc/13600/statm: 1576 1330 88 219 0 1353 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6304

[startup+1.50169 s]
/proc/loadavg: 0.94 1.01 0.99 2/78 13601
/proc/meminfo: memFree=1710216/2055920 swapFree=4153812/4192956
[pid=13600] ppid=13598 vsize=6304 CPUtime=1.49
/proc/13600/stat : 13600 (PBS4) R 13598 13600 12140 0 -1 4194304 1381 0 0 0 149 0 0 0 25 0 1 0 178507793 6455296 1330 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588284 0 0 4096 0 0 0 0 17 1 0 0
/proc/13600/statm: 1576 1330 88 219 0 1353 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6304

[startup+3.10185 s]
/proc/loadavg: 0.94 1.01 0.99 2/78 13601
/proc/meminfo: memFree=1711112/2055920 swapFree=4153812/4192956
[pid=13600] ppid=13598 vsize=6684 CPUtime=3.09
/proc/13600/stat : 13600 (PBS4) R 13598 13600 12140 0 -1 4194304 1476 0 0 0 309 0 0 0 25 0 1 0 178507793 6844416 1425 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588889 0 0 4096 0 0 0 0 17 1 0 0
/proc/13600/statm: 1671 1425 88 219 0 1448 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 6684

[startup+6.30115 s]
/proc/loadavg: 0.94 1.01 0.99 2/78 13601
/proc/meminfo: memFree=1702664/2055920 swapFree=4153812/4192956
[pid=13600] ppid=13598 vsize=17740 CPUtime=6.29
/proc/13600/stat : 13600 (PBS4) R 13598 13600 12140 0 -1 4194304 5683 0 0 0 627 2 0 0 25 0 1 0 178507793 18165760 4204 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134596202 0 0 4096 0 0 0 0 17 1 0 0
/proc/13600/statm: 4435 4204 89 219 0 4212 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 17740

[startup+12.7018 s]
/proc/loadavg: 0.95 1.01 0.99 2/78 13601
/proc/meminfo: memFree=1672200/2055920 swapFree=4153812/4192956
[pid=13600] ppid=13598 vsize=45932 CPUtime=12.69
/proc/13600/stat : 13600 (PBS4) R 13598 13600 12140 0 -1 4194304 12846 0 0 0 1264 5 0 0 25 0 1 0 178507793 47034368 11143 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 135057389 0 0 4096 0 0 0 0 17 1 0 0
/proc/13600/statm: 11483 11143 89 219 0 11260 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 45932

[startup+25.502 s]
/proc/loadavg: 0.96 1.00 0.99 2/78 13601
/proc/meminfo: memFree=1647624/2055920 swapFree=4153812/4192956
[pid=13600] ppid=13598 vsize=71452 CPUtime=25.49
/proc/13600/stat : 13600 (PBS4) R 13598 13600 12140 0 -1 4194304 19217 0 0 0 2539 10 0 0 25 0 1 0 178507793 73166848 17514 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134596202 0 0 4096 0 0 0 0 17 1 0 0
/proc/13600/statm: 17863 17514 89 219 0 17640 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 71452

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

[startup+26.3011 s]
/proc/loadavg: 0.96 1.00 0.99 2/78 13601
/proc/meminfo: memFree=1645192/2055920 swapFree=4153812/4192956
[pid=13600] ppid=13598 vsize=73052 CPUtime=26.29
/proc/13600/stat : 13600 (PBS4) R 13598 13600 12140 0 -1 4194304 19633 0 0 0 2619 10 0 0 25 0 1 0 178507793 74805248 17930 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134588368 0 0 4096 0 0 0 0 17 1 0 0
/proc/13600/statm: 18263 17930 89 219 0 18040 0
Current children cumulated CPU time (s) 26.29
Current children cumulated vsize (KiB) 73052

[startup+26.7011 s]
/proc/loadavg: 0.96 1.00 0.99 2/78 13601
/proc/meminfo: memFree=1645192/2055920 swapFree=4153812/4192956
[pid=13600] ppid=13598 vsize=73572 CPUtime=26.68
/proc/13600/stat : 13600 (PBS4) R 13598 13600 12140 0 -1 4194304 19901 0 0 0 2658 10 0 0 25 0 1 0 178507793 75337728 18099 18446744073709551615 134512640 135410514 4294956672 18446744073709551615 134548073 0 0 4096 0 0 0 0 17 1 0 0
/proc/13600/statm: 18393 18099 94 219 0 18170 0
Current children cumulated CPU time (s) 26.68
Current children cumulated vsize (KiB) 73572

Child status: 0
Real time (s): 26.7203
CPU time (s): 26.7119
CPU user time (s): 26.595
CPU system time (s): 0.116982
CPU usage (%): 99.9685
Max. virtual memory (cumulated for all children) (KiB): 73632

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 26.595
system time used= 0.116982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19915
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= 574

runsolver used 0.032994 second user time and 0.069989 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Thu Apr 19 23:18:20 UTC 2007

IDJOB= 363241
IDBENCH= 1775
IDSOLVER= 157
FILE ID= node4/363241-1177024700

PBS_JOBID= 4630555

Free space on /tmp= 66443 MiB

SOLVER NAME= PBS4 2007-03-23
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/MIPLIB/miplib2003/normalized-reduced-mps-v2-20-10-momentum2.opb
COMMAND LINE= /tmp/evaluation/363241-1177024700/PBS4 /tmp/evaluation/363241-1177024700/instance-363241-1177024700.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node4/convwatcher-363241-1177024700 -o ROOT/results/node4/conversion-363241-1177024700 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/363241-1177024700/instance-363241-1177024700.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-363241-1177024700 -o ROOT/results/node4/solver-363241-1177024700 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/363241-1177024700/PBS4 /tmp/evaluation/363241-1177024700/instance-363241-1177024700.opb            

META MD5SUM SOLVER= b6c24e28fef9e1efa7891be58ea9e46f
MD5SUM BENCH=  321e9d4e6ed80bc00fdeca5e2a9625ff

RANDOM SEED= 61160955

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.218
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	: 5931.00
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		: 3000.218
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:       1716840 kB
Buffers:         31064 kB
Cached:         228168 kB
SwapCached:       2024 kB
Active:         102228 kB
Inactive:       180116 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1716840 kB
SwapTotal:     4192956 kB
SwapFree:      4153812 kB
Dirty:           32008 kB
Writeback:           0 kB
Mapped:          30800 kB
Slab:            42248 kB
Committed_AS:  5311652 kB
PageTables:       1820 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= 66443 MiB

End job on node4 on Thu Apr 19 23:18:47 UTC 2007