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 in four parts:
  1. 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 provide some useful information on the computer.
  2. 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 !
  3. 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 1200 seconds. 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 1230 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (900Mb).
    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.
  4. 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.

General information on the benchmark

Namemps-v2-20-10/plato.asu.edu/pub/milp/normalized-mps-v2-20-10-neos19.opb
MD5SUM6eb30c4e664b9c0e8d94f2aea74a91a3
Bench Categoryoptimization, small integers (OPTSMALLINT)
Has Objective FunctionYES
Satisfiable
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 1611
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 1611
Number of bits of the sum of numbers in the objective function 11
Biggest number in a constraint 24576
Number of bits of the biggest number in a constraint 15
Biggest sum of numbers in a constraint 98256
Number of bits of the biggest sum of numbers17
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables1041679
Total number of constraints137871
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)10091
Number of constraints which are nor clauses,nor cardinality constraints127780
Minimum length of a constraint1
Maximum length of a constraint275

Trace number 4353

Launcher Data

LAUNCH ON wulflinc13 THE 2005-09-19 17:24:35 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=725 boxname=wulflinc13 idbench=725 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  6eb30c4e664b9c0e8d94f2aea74a91a3  /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-neos19.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-neos19.opb
IDLAUNCH: 725
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 888.83

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.242
cache size	: 512 KB
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 2
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips	: 901.12

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        785092 kB
Buffers:         35508 kB
Cached:         186620 kB
SwapCached:        708 kB
Active:         127412 kB
Inactive:        97316 kB
HighTotal:      131008 kB
HighFree:         3752 kB
LowTotal:       903652 kB
LowFree:        781340 kB
SwapTotal:     2097136 kB
SwapFree:      2095936 kB
Dirty:               0 kB
Writeback:           0 kB
Mapped:           5740 kB
Slab:            19008 kB
Committed_AS:    64148 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-19 17:25:50 (client local time) WITH STATUS 0 IN 70.0753 SECONDS
stats: 725 7 70.0753 0

Solver Data

c INFO: OSL Context initialized.
c Caught signal: 15
s UNKNOWN
c Exit Code: 0

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/13031/stat): 13031 (bsolo) R 13030 13031 1333 0 -1 0 19 0 0 0 0 0 0 0 22 0 1 0 1793466588 438272 3 4294967295 134512640 134736556 3221224560 3221224560 1073744960 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/13031/statm): 107 3 90 68 0 39 0
[pid=13031] vsize: 428
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libosl.so
open syscall for file tls/i686/libosl.so
open syscall for file tls/mmx/libosl.so
open syscall for file tls/libosl.so
open syscall for file i686/mmx/libosl.so
open syscall for file i686/libosl.so
open syscall for file mmx/libosl.so
open syscall for file libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/libosl.so
open syscall for file /oldhome/oroussel/lib/i686/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/i686/libosl.so
open syscall for file /oldhome/oroussel/lib/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/libosl.so
open syscall for file tls/i686/mmx/libstdc++-libc6.2-2.so.3
open syscall for file tls/i686/libstdc++-libc6.2-2.so.3
open syscall for file tls/mmx/libstdc++-libc6.2-2.so.3
open syscall for file tls/libstdc++-libc6.2-2.so.3
open syscall for file i686/mmx/libstdc++-libc6.2-2.so.3
open syscall for file i686/libstdc++-libc6.2-2.so.3
open syscall for file mmx/libstdc++-libc6.2-2.so.3
open syscall for file libstdc++-libc6.2-2.so.3
open syscall for file /oldhome/oroussel/lib/libstdc++-libc6.2-2.so.3
open syscall for file /etc/ld.so.cache
open syscall for file /usr/lib/libstdc++-libc6.2-2.so.3
open syscall for file tls/i686/mmx/libm.so.6
open syscall for file tls/i686/libm.so.6
open syscall for file tls/mmx/libm.so.6
open syscall for file tls/libm.so.6
open syscall for file i686/mmx/libm.so.6
open syscall for file i686/libm.so.6
open syscall for file mmx/libm.so.6
open syscall for file libm.so.6
open syscall for file /oldhome/oroussel/lib/libm.so.6
open syscall for file /lib/tls/libm.so.6
open syscall for file tls/i686/mmx/libpthread.so.0
open syscall for file tls/i686/libpthread.so.0
open syscall for file tls/mmx/libpthread.so.0
open syscall for file tls/libpthread.so.0
open syscall for file i686/mmx/libpthread.so.0
open syscall for file i686/libpthread.so.0
open syscall for file mmx/libpthread.so.0
open syscall for file libpthread.so.0
open syscall for file /oldhome/oroussel/lib/libpthread.so.0
open syscall for file /lib/tls/libpthread.so.0
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /lib/tls/libc.so.6
open syscall for file tls/i686/mmx/libgcc_s.so.1
open syscall for file tls/i686/libgcc_s.so.1
open syscall for file tls/mmx/libgcc_s.so.1
open syscall for file tls/libgcc_s.so.1
open syscall for file i686/mmx/libgcc_s.so.1
open syscall for file i686/libgcc_s.so.1
open syscall for file mmx/libgcc_s.so.1
open syscall for file libgcc_s.so.1
open syscall for file /oldhome/oroussel/lib/libgcc_s.so.1
open syscall for file /lib/libgcc_s.so.1
open syscall for file /.OptimizationSolutions/nodelock
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open syscall for file /oldhome/oroussel/.OptimizationSolutions/nodelock
open syscall for file /oldhome/oroussel/tmp/wulflinc13/normalized-mps-v2-20-10-neos19.opb

[startup+10.0038 s]
Raw data (loadavg): 0.44 0.11 0.03 2/56 13031
Raw data (/proc/13031/stat): 13031 (bsolo) R 13030 13031 1333 0 -1 0 62703 0 0 0 834 133 0 0 25 0 1 0 1793466588 259592192 62447 4294967295 134512640 134736556 3221224560 3221223088 134573621 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/13031/statm): 63377 62449 1116 68 0 63309 0
[pid=13031] vsize: 253508
Current children cumulated CPU time (s) 9.67
Current children cumulated vsize (Kb) 253508

[startup+20.0045 s]
Raw data (loadavg): 0.53 0.14 0.04 2/56 13031
Raw data (/proc/13031/stat): 13031 (bsolo) R 13030 13031 1333 0 -1 0 104096 0 0 0 1736 214 0 0 25 0 1 0 1793466588 427368448 103278 4294967295 134512640 134736556 3221224560 3221223088 134573621 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/13031/statm): 104338 103280 1116 68 0 104270 0
[pid=13031] vsize: 417352
Current children cumulated CPU time (s) 19.5
Current children cumulated vsize (Kb) 417352

[startup+30.0051 s]
Raw data (loadavg): 0.60 0.17 0.05 2/57 13032
Raw data (/proc/13031/stat): 13031 (bsolo) R 13030 13031 1333 0 -1 0 138097 0 0 0 2647 285 0 0 25 0 1 0 1793466588 563609600 136663 4294967295 134512640 134736556 3221224560 3221221404 1077244631 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/13031/statm): 137600 136663 1116 68 0 137532 0
[pid=13031] vsize: 550400
Current children cumulated CPU time (s) 29.32
Current children cumulated vsize (Kb) 550400

[startup+40.0057 s]
Raw data (loadavg): 0.66 0.19 0.06 2/56 13039
Raw data (/proc/13031/stat): 13031 (bsolo) R 13030 13031 1333 0 -1 0 167572 0 0 0 3577 345 0 0 25 0 1 0 1793466588 683970560 165635 4294967295 134512640 134736556 3221224560 3221223068 1077399562 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/13031/statm): 166985 165635 1116 68 0 166917 0
[pid=13031] vsize: 667940
Current children cumulated CPU time (s) 39.22
Current children cumulated vsize (Kb) 667940

[startup+50.0074 s]
Raw data (loadavg): 0.71 0.22 0.07 2/56 13039
Raw data (/proc/13031/stat): 13031 (bsolo) R 13030 13031 1333 0 -1 0 190853 0 0 0 4524 387 0 0 25 0 1 0 1793466588 778973184 188916 4294967295 134512640 134736556 3221224560 3221222928 134535485 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/13031/statm): 190179 188916 1116 68 0 190111 0
[pid=13031] vsize: 760716
Current children cumulated CPU time (s) 49.11
Current children cumulated vsize (Kb) 760716

[startup+60.007 s]
Raw data (loadavg): 0.76 0.24 0.08 2/56 13039
Raw data (/proc/13031/stat): 13031 (bsolo) R 13030 13031 1333 0 -1 0 211452 0 5 0 5464 434 0 0 25 0 1 0 1793466588 863150080 208115 4294967295 134512640 134736556 3221224560 3221223068 1077399562 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/13031/statm): 210730 208115 1116 68 0 210662 0
[pid=13031] vsize: 842920
Current children cumulated CPU time (s) 58.98
Current children cumulated vsize (Kb) 842920

[startup+70.0077 s]
Raw data (loadavg): 0.79 0.27 0.09 2/56 13039
Raw data (/proc/13031/stat): 13031 (bsolo) R 13030 13031 1333 0 -1 0 229716 0 6 0 6401 486 0 0 25 0 1 0 1793466588 937627648 223286 4294967295 134512640 134736556 3221224560 3221223068 1077399562 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/13031/statm): 228913 223292 1116 68 0 228845 0
[pid=13031] vsize: 915652
Current children cumulated CPU time (s) 68.87
Current children cumulated vsize (Kb) 915652



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+70.8218 s]
Raw data (loadavg): 0.79 0.27 0.09 1/56 13039
Raw data (/proc/13031/stat): 13031 (bsolo) T 13030 13031 1333 0 -1 0 231191 0 6 0 6473 492 0 0 25 0 1 0 1793466588 943751168 224238 4294967295 134512640 134736556 3221224560 3221222780 1077782939 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/13031/statm): 230408 224238 1116 68 0 230340 0
[pid=13031] vsize: 921632
Current children cumulated CPU time (s) 69.65
Current children cumulated vsize (Kb) 921632

Sending SIGTERM to -13031
Sleeping 2 seconds
Sending SIGKILL to -13031
One traced child (pid=13031) ended because it received signal 9 (SIGKILL)
All traced children have exited ! Game is over.

Child ended because it received signal 9 (SIGKILL)
Real time (s): 73.2441
CPU time (s): 70.0753
CPU user time (s): 64.7342
CPU system time (s): 5.34119
CPU usage (%): 95.6738
Max. virtual memory (cumulated for all children) (Kb): 921632

Verifier Data

ERROR: no interpretation found !