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-v2-13-7/ftp.netlib.org/lp/data/normalized-mps-v2-13-7-israel.opb
MD5SUM326c72a25c8066513471046cf298330a
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -20715832672
Optimality of the best value was proved NO
Number of terms in the objective function 1780
Biggest coefficient in the objective function 788267008000
Number of bits for the biggest coefficient in the objective function 40
Sum of the numbers in the objective function 9669174315900
Number of bits of the sum of numbers in the objective function 44
Biggest number in a constraint 788267008000
Number of bits of the biggest number in a constraint 40
Biggest sum of numbers in a constraint 9669174315900
Number of bits of the biggest sum of numbers44
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1195.11
Number of variables2840
Total number of constraints174
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints174
Minimum length of a constraint20
Maximum length of a constraint2360

Trace number 10279

Launcher Data

LAUNCH ON wulflinc29 THE 2005-09-23 17:45:57 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9027 boxname=wulflinc29 idbench=823 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  326c72a25c8066513471046cf298330a  /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-israel.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-israel.opb
IDLAUNCH: 9027
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.077
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	: 3
cpu MHz		: 451.077
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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        920188 kB
Buffers:         12252 kB
Cached:          84920 kB
SwapCached:          0 kB
Active:          52612 kB
Inactive:        47496 kB
HighTotal:      131008 kB
HighFree:        46368 kB
LowTotal:       903652 kB
LowFree:        873820 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:             8760 kB
Committed_AS:    63624 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:47:32 (client local time) WITH STATUS 0 IN 92.7619 SECONDS
stats: 9027 7 92.7619 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
s UNKNOWN

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/9948/stat): 9948 (pb2sat) R 9947 9948 4005 0 -1 0 18 0 0 0 0 0 0 0 24 0 1 0 22055603 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9948/statm): 373 2 364 364 0 9 0
[pid=9948] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc29/normalized-mps-v2-13-7-israel.opb

[startup+10.0025 s]
Raw data (loadavg): 0.92 0.95 0.91 2/55 9948
Raw data (/proc/9948/stat): 9948 (pb2sat) R 9947 9948 4005 0 -1 0 29206 0 0 0 934 61 0 0 25 0 1 0 22055603 89456640 18061 4294967295 134512640 135987407 3221224560 3221208948 134640112 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9948/statm): 21840 18061 364 364 0 21476 0
[pid=9948] vsize: 87360
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 87360

[startup+20.0033 s]
Raw data (loadavg): 0.93 0.95 0.91 2/55 9948
Raw data (/proc/9948/stat): 9948 (pb2sat) R 9947 9948 4005 0 -1 0 56047 0 0 0 1878 117 0 0 25 0 1 0 22055603 166510592 33669 4294967295 134512640 135987407 3221224560 3221203456 134878604 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9948/statm): 40652 33669 364 364 0 40288 0
[pid=9948] vsize: 162608
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 162608

[startup+30.0041 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 9948
Raw data (/proc/9948/stat): 9948 (pb2sat) R 9947 9948 4005 0 -1 0 96800 0 0 0 2793 200 0 0 25 0 1 0 22055603 288579584 52208 4294967295 134512640 135987407 3221224560 3221209564 134636999 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9948/statm): 70454 52208 364 364 0 70090 0
[pid=9948] vsize: 281816
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 281816

[startup+40.0039 s]
Raw data (loadavg): 0.95 0.95 0.91 2/55 9948
Raw data (/proc/9948/stat): 9948 (pb2sat) R 9947 9948 4005 0 -1 0 110100 0 0 0 3763 230 0 0 25 0 1 0 22055603 325525504 65274 4294967295 134512640 135987407 3221224560 3221203216 134537371 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9948/statm): 79474 65274 364 364 0 79110 0
[pid=9948] vsize: 317896
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 317896

[startup+50.0047 s]
Raw data (loadavg): 0.96 0.95 0.91 2/55 9948
Raw data (/proc/9948/stat): 9948 (pb2sat) R 9947 9948 4005 0 -1 0 152567 0 0 0 4674 314 0 0 25 0 1 0 22055603 454316032 88099 4294967295 134512640 135987407 3221224560 3221183420 134557772 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9948/statm): 110917 88099 364 364 0 110553 0
[pid=9948] vsize: 443668
Current children cumulated CPU time (s) 49.88
Current children cumulated vsize (Kb) 443668

[startup+60.0055 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 9948
Raw data (/proc/9948/stat): 9948 (pb2sat) R 9947 9948 4005 0 -1 0 191160 0 0 0 5582 406 0 0 25 0 1 0 22055603 592592896 101875 4294967295 134512640 135987407 3221224560 3221209408 134877628 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9948/statm): 144676 101875 364 364 0 144312 0
[pid=9948] vsize: 578704
Current children cumulated CPU time (s) 59.88
Current children cumulated vsize (Kb) 578704

[startup+70.0062 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 9948
Raw data (/proc/9948/stat): 9948 (pb2sat) R 9947 9948 4005 0 -1 0 204935 0 0 0 6551 437 0 0 25 0 1 0 22055603 597053440 115420 4294967295 134512640 135987407 3221224560 3221195824 134537491 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9948/statm): 145765 115420 364 364 0 145401 0
[pid=9948] vsize: 583060
Current children cumulated CPU time (s) 69.88
Current children cumulated vsize (Kb) 583060

[startup+80.007 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 9948
Raw data (/proc/9948/stat): 9948 (pb2sat) R 9947 9948 4005 0 -1 0 220278 0 0 0 7514 473 0 0 25 0 1 0 22055603 602054656 130505 4294967295 134512640 135987407 3221224560 3221189904 134854956 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9948/statm): 146986 130505 364 364 0 146622 0
[pid=9948] vsize: 587944
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 587944

[startup+90.0078 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 9948
Raw data (/proc/9948/stat): 9948 (pb2sat) R 9947 9948 4005 0 -1 0 232305 0 0 0 8489 499 0 0 25 0 1 0 22055603 655495168 142327 4294967295 134512640 135987407 3221224560 3221200500 134636948 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9948/statm): 160033 142327 364 364 0 159669 0
[pid=9948] vsize: 640132
Current children cumulated CPU time (s) 89.88
Current children cumulated vsize (Kb) 640132



Mem limit exceeded: sending SIGTERM then SIGKILL

[startup+92.5855 s]
Raw data (loadavg): 0.98 0.96 0.91 1/55 9948
Raw data (/proc/9948/stat): 9948 (pb2sat) T 9947 9948 4005 0 -1 0 236596 0 0 0 8735 510 0 0 25 0 1 0 22055603 943820800 146553 4294967295 134512640 135987407 3221224560 3221191084 135635874 0 0 5 16384 3222434794 0 0 17 1 0 0
Raw data (/proc/9948/statm): 230425 146553 364 364 0 230061 0
[pid=9948] vsize: 921700
Current children cumulated CPU time (s) 92.45
Current children cumulated vsize (Kb) 921700

Sending SIGTERM to -9948
Sleeping 2 seconds
Sending SIGKILL to -9948
One traced child (pid=9948) 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): 94.8911
CPU time (s): 92.7619
CPU user time (s): 87.3567
CPU system time (s): 5.40518
CPU usage (%): 97.7561
Max. virtual memory (cumulated for all children) (Kb): 921700

Verifier Data

ERROR: no interpretation found !