Trace number 2696622

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
pb_cplex 2010-06-29UNSAT 2.22566 2.67772

General information on the benchmark

Name/DEC-SMALLINT-LIN/oliveras/j120/
normalized-j12013_1-unsat.opb
MD5SUM4ae026821d0930247b1eee2eafe8a46e
Bench CategoryDEC-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark0.480926
Has Objective FunctionNO
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of variables29282
Total number of constraints92908
Number of constraints which are clauses92428
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints480
Minimum length of a constraint1
Maximum length of a constraint93
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 32
Number of bits of the biggest number in a constraint 6
Biggest sum of numbers in a constraint 554
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 pb_cplex 1.0 - 20100701
0.00/0.00	c Parsing opb file format. File HOME/instance-2696622-1278439786.opb.
0.00/0.00	c Instance file HOME/instance-2696622-1278439786.opb
0.00/0.00	c File size is 2976869 bytes.
1.88/1.94	c Highest Coefficient sum: 554
1.88/1.94	c  IBM ILOG License Manager: "IBM ILOG Optimization Suite for Academic Initiative" is accessing CPLEX 12 with option(s): "e m b q ".
2.03/2.53	c ============================[ Problem Statistics ]=============================
2.03/2.53	c |                                                                             |
2.03/2.53	c |  Parsing time:          2.02         s                                      |
2.03/2.53	c |  Number Variables:      29282                                               |
2.03/2.57	c |  Number Constraints:    92908                                               |
2.03/2.57	c ===============================================================================
2.14/2.66	c Remaining time 1797.96 sec.
2.14/2.66	s UNSATISFIABLE
2.14/2.66	c Total CPU time              : 2.11468 s

Verifier Data 

ERROR: no interpretation found !

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2696622-1278439786/watcher-2696622-1278439786 -o /tmp/evaluation-result-2696622-1278439786/solver-2696622-1278439786 -C 1800 -W 2000 -M 1800 run HOME/instance-2696622-1278439786.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: 0.94 0.98 0.99 3/106 19330
/proc/meminfo: memFree=1805036/2059040 swapFree=4192956/4192956
[pid=19330] ppid=19328 vsize=8700 CPUtime=0
/proc/19330/stat : 19330 (run) R 19328 19330 17871 0 -1 4202496 349 0 0 0 0 0 0 0 20 0 1 0 12190939 8908800 249 1992294400 4194304 4922060 140733617853856 18446744073709551615 273567818133 0 65538 4100 65536 0 0 0 17 1 0 0 0
/proc/19330/statm: 2175 249 208 178 0 68 0

[startup+0.0523121 s]
/proc/loadavg: 0.94 0.98 0.99 3/106 19330
/proc/meminfo: memFree=1805036/2059040 swapFree=4192956/4192956
[pid=19330] ppid=19328 vsize=8700 CPUtime=0
/proc/19330/stat : 19330 (run) S 19328 19330 17871 0 -1 4202496 366 0 0 0 0 0 0 0 20 0 1 0 12190939 8908800 249 1992294400 4194304 4922060 140733617853856 18446744073709551615 273567816837 0 65536 4100 65538 18446744071562232103 0 0 17 0 0 0 0
/proc/19330/statm: 2175 249 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.101316 s]
/proc/loadavg: 0.94 0.98 0.99 3/106 19330
/proc/meminfo: memFree=1805036/2059040 swapFree=4192956/4192956
[pid=19330] ppid=19328 vsize=8700 CPUtime=0
/proc/19330/stat : 19330 (run) S 19328 19330 17871 0 -1 4202496 366 0 0 0 0 0 0 0 20 0 1 0 12190939 8908800 249 1992294400 4194304 4922060 140733617853856 18446744073709551615 273567816837 0 65536 4100 65538 18446744071562232103 0 0 17 0 0 0 0
/proc/19330/statm: 2175 249 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.301335 s]
/proc/loadavg: 0.94 0.98 0.99 3/106 19330
/proc/meminfo: memFree=1805036/2059040 swapFree=4192956/4192956
[pid=19330] ppid=19328 vsize=8700 CPUtime=0
/proc/19330/stat : 19330 (run) S 19328 19330 17871 0 -1 4202496 366 0 0 0 0 0 0 0 20 0 1 0 12190939 8908800 249 1992294400 4194304 4922060 140733617853856 18446744073709551615 273567816837 0 65536 4100 65538 18446744071562232103 0 0 17 0 0 0 0
/proc/19330/statm: 2175 249 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+0.701374 s]
/proc/loadavg: 0.94 0.98 0.99 3/106 19330
/proc/meminfo: memFree=1805036/2059040 swapFree=4192956/4192956
[pid=19330] ppid=19328 vsize=8700 CPUtime=0
/proc/19330/stat : 19330 (run) S 19328 19330 17871 0 -1 4202496 366 0 0 0 0 0 0 0 20 0 1 0 12190939 8908800 249 1992294400 4194304 4922060 140733617853856 18446744073709551615 273567816837 0 65536 4100 65538 18446744071562232103 0 0 17 0 0 0 0
/proc/19330/statm: 2175 249 208 178 0 68 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8700

[startup+1.50145 s]
/proc/loadavg: 0.94 0.98 0.99 2/108 19332
/proc/meminfo: memFree=1783072/2059040 swapFree=4192956/4192956
[pid=19330] ppid=19328 vsize=8700 CPUtime=0
/proc/19330/stat : 19330 (run) S 19328 19330 17871 0 -1 4202496 366 0 0 0 0 0 0 0 20 0 1 0 12190939 8908800 249 1992294400 4194304 4922060 140733617853856 18446744073709551615 273567816837 0 65536 4100 65538 18446744071562232103 0 0 17 0 0 0 0
/proc/19330/statm: 2175 249 208 178 0 68 0
[pid=19331] ppid=19330 vsize=37864 CPUtime=1.49
/proc/19331/stat : 19331 (pb_cplex) R 19330 19330 17871 0 -1 4202496 6746 0 0 0 146 3 0 0 25 0 1 0 12190939 38772736 6505 1992294400 134512640 146736320 4291026976 18446744073709551615 141028032 0 0 4096 16387 0 0 0 17 1 0 0 0
/proc/19331/statm: 9466 6505 965 2985 0 5673 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 46564

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

[startup+2.30153 s]
/proc/loadavg: 0.94 0.98 0.99 1/108 19332
/proc/meminfo: memFree=1774460/2059040 swapFree=4192956/4192956
[pid=19330] ppid=19328 vsize=8700 CPUtime=0
/proc/19330/stat : 19330 (run) S 19328 19330 17871 0 -1 4202496 366 0 0 0 0 0 0 0 20 0 1 0 12190939 8908800 249 1992294400 4194304 4922060 140733617853856 18446744073709551615 273567816837 0 65536 4100 65538 18446744071562232103 0 0 17 0 0 0 0
/proc/19330/statm: 2175 249 208 178 0 68 0
[pid=19331] ppid=19330 vsize=45060 CPUtime=1.94
/proc/19331/stat : 19331 (pb_cplex) D 19330 19330 17871 0 -1 4202496 8859 0 3 0 190 4 0 0 24 0 1 0 12190939 46141440 7877 1992294400 134512640 146736320 4291026976 18446744073709551615 5638592 0 0 4096 16387 18446744071562234166 0 0 17 1 0 0 17
/proc/19331/statm: 11265 7877 426 2985 0 7838 0
Current children cumulated CPU time (s) 1.94
Current children cumulated vsize (KiB) 53760

[startup+2.50156 s]
/proc/loadavg: 0.94 0.98 0.99 1/108 19332
/proc/meminfo: memFree=1774460/2059040 swapFree=4192956/4192956
[pid=19330] ppid=19328 vsize=8700 CPUtime=0
/proc/19330/stat : 19330 (run) S 19328 19330 17871 0 -1 4202496 366 0 0 0 0 0 0 0 20 0 1 0 12190939 8908800 249 1992294400 4194304 4922060 140733617853856 18446744073709551615 273567816837 0 65536 4100 65538 18446744071562232103 0 0 17 0 0 0 0
/proc/19330/statm: 2175 249 208 178 0 68 0
[pid=19331] ppid=19330 vsize=54048 CPUtime=2.03
/proc/19331/stat : 19331 (pb_cplex) R 19330 19330 17871 0 -1 4202496 11021 0 8 0 198 5 0 0 18 0 1 0 12190939 55345152 9569 1992294400 134512640 146736320 4291026976 18446744073709551615 134993177 0 0 4096 16387 0 0 0 17 0 0 0 45
/proc/19331/statm: 13512 9569 565 2985 0 10054 0
Current children cumulated CPU time (s) 2.03
Current children cumulated vsize (KiB) 62748

[startup+2.60157 s]
/proc/loadavg: 0.94 0.98 0.99 1/108 19332
/proc/meminfo: memFree=1774460/2059040 swapFree=4192956/4192956
[pid=19330] ppid=19328 vsize=8700 CPUtime=0
/proc/19330/stat : 19330 (run) S 19328 19330 17871 0 -1 4202496 366 0 0 0 0 0 0 0 20 0 1 0 12190939 8908800 249 1992294400 4194304 4922060 140733617853856 18446744073709551615 273567816837 0 65536 4100 65538 18446744071562232103 0 0 17 0 0 0 0
/proc/19330/statm: 2175 249 208 178 0 68 0
[pid=19331] ppid=19330 vsize=68552 CPUtime=2.14
/proc/19331/stat : 19331 (pb_cplex) R 19330 19330 17871 0 -1 4202496 18478 0 8 0 206 8 0 0 18 0 1 0 12190939 70197248 13397 1992294400 134512640 146736320 4291026976 18446744073709551615 135794733 0 0 4096 16387 0 0 0 17 0 0 0 45
/proc/19331/statm: 17138 13397 632 2985 0 13680 0
Current children cumulated CPU time (s) 2.14
Current children cumulated vsize (KiB) 77252

Child status: 0
Real time (s): 2.67772
CPU time (s): 2.22566
CPU user time (s): 2.12868
CPU system time (s): 0.096985
CPU usage (%): 83.1176
Max. virtual memory (cumulated for all children) (KiB): 77252

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.12868
system time used= 0.096985
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 19397
page faults= 8
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 22
involuntary context switches= 41

runsolver used 0.006998 second user time and 0.019996 second system time

The end

Launcher Data 

Begin job on node018 at 2010-07-06 20:09:46
IDJOB=2696622
IDBENCH=74540
IDSOLVER=1209
FILE ID=node018/2696622-1278439786
PBS_JOBID= 11233454
Free space on /tmp= 62516 MiB

SOLVER NAME= pb_cplex 2010-06-29
BENCH NAME= PB10/normalized-PB10/DEC-SMALLINT-LIN/oliveras/j120/normalized-j12013_1-unsat.opb
COMMAND LINE= run BENCHNAME
CONVERSION SCRIPT= PBconversionToLinear BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2696622-1278439786/watcher-2696622-1278439786 -o /tmp/evaluation-result-2696622-1278439786/solver-2696622-1278439786 -C 1800 -W 2000 -M 1800  run HOME/instance-2696622-1278439786.opb

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

MD5SUM BENCH= 4ae026821d0930247b1eee2eafe8a46e
RANDOM SEED=962425654

node018.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.248
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.49
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		: 3000.248
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.53
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1806228 kB
Buffers:          7692 kB
Cached:         110520 kB
SwapCached:          0 kB
Active:          99040 kB
Inactive:        79780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1806228 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:           20484 kB
Writeback:           0 kB
AnonPages:       60472 kB
Mapped:          14444 kB
Slab:            51888 kB
PageTables:       4276 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   180128 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

CONVERSION COMMAND LINE= PBconversionToLinear HOME/instance-2696622-1278439786.opb

Free space on /tmp at the end= 62500 MiB
End job on node018 at 2010-07-06 20:09:50