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/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-fffff800.opb
MD5SUM41762d7ce490e5551e5099dd159735cc
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was proved
Best value of the objective function
Optimality of the best value was proved
Number of terms in the objective function 240
Biggest coefficient in the objective function 536870912
Number of bits for the biggest coefficient in the objective function 30
Sum of the numbers in the objective function 8589934584
Number of bits of the sum of numbers in the objective function 33
Biggest number in a constraint -2340616713709551616
Number of bits of the biggest number in a constraint 64
Biggest sum of numbers in a constraint 392918753328864690176
Number of bits of the biggest sum of numbers69
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark43.5764
Number of variables25620
Total number of constraints524
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 constraints524
Minimum length of a constraint30
Maximum length of a constraint7530

Trace number 9873

Launcher Data

LAUNCH ON wulflinc17 THE 2005-09-23 16:04:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8630 boxname=wulflinc17 idbench=426 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  41762d7ce490e5551e5099dd159735cc  /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-fffff800.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-fffff800.opb
IDLAUNCH: 8630
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.161
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		: 451.161
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:        928928 kB
Buffers:         15700 kB
Cached:          71340 kB
SwapCached:          0 kB
Active:          48728 kB
Inactive:        41232 kB
HighTotal:      131008 kB
HighFree:        55412 kB
LowTotal:       903652 kB
LowFree:        873516 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6980 kB
Slab:            10208 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 16:06:18 (client local time) WITH STATUS 1 IN 107.979 SECONDS
stats: 8630 7 107.979 1

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc

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/8188/stat): 8188 (pb2sat) R 8187 8188 4060 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21487027 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8188/statm): 373 2 364 364 0 9 0
[pid=8188] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc17/normalized-mps-v2-20-10-fffff800.opb

[startup+10.0019 s]
Raw data (loadavg): 0.86 0.95 0.94 2/55 8188
Raw data (/proc/8188/stat): 8188 (pb2sat) R 8187 8188 4060 0 -1 0 29661 0 0 0 932 63 0 0 25 0 1 0 21487027 97976320 18580 4294967295 134512640 135987407 3221224560 3218851520 134537371 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8188/statm): 23920 18580 364 364 0 23556 0
[pid=8188] vsize: 95680
Current children cumulated CPU time (s) 9.95
Current children cumulated vsize (Kb) 95680

[startup+20.0026 s]
Raw data (loadavg): 0.88 0.95 0.94 2/55 8188
Raw data (/proc/8188/stat): 8188 (pb2sat) R 8187 8188 4060 0 -1 0 60212 0 0 0 1867 126 0 0 25 0 1 0 21487027 192720896 37923 4294967295 134512640 135987407 3221224560 3219096976 134864189 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8188/statm): 47051 37923 364 364 0 46687 0
[pid=8188] vsize: 188204
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 188204

[startup+30.0032 s]
Raw data (loadavg): 0.90 0.95 0.94 2/55 8188
Raw data (/proc/8188/stat): 8188 (pb2sat) R 8187 8188 4060 0 -1 0 103090 0 0 0 2772 216 0 0 25 0 1 0 21487027 325136384 58606 4294967295 134512640 135987407 3221224560 3219275516 134636961 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8188/statm): 79379 58606 364 364 0 79015 0
[pid=8188] vsize: 317516
Current children cumulated CPU time (s) 29.88
Current children cumulated vsize (Kb) 317516

[startup+40.0038 s]
Raw data (loadavg): 0.91 0.95 0.94 2/55 8188
Raw data (/proc/8188/stat): 8188 (pb2sat) R 8187 8188 4060 0 -1 0 121100 0 0 0 3731 256 0 0 25 0 1 0 21487027 381939712 76400 4294967295 134512640 135987407 3221224560 3219404604 134636908 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8188/statm): 93247 76400 364 364 0 92883 0
[pid=8188] vsize: 372988
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (Kb) 372988

[startup+50.0043 s]
Raw data (loadavg): 0.93 0.96 0.94 2/55 8188
Raw data (/proc/8188/stat): 8188 (pb2sat) R 8187 8188 4060 0 -1 0 140309 0 0 0 4685 299 0 0 25 0 1 0 21487027 406810624 95378 4294967295 134512640 135987407 3221224560 3219643612 135499901 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8188/statm): 99319 95378 364 364 0 98955 0
[pid=8188] vsize: 397276
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 397276

[startup+60.005 s]
Raw data (loadavg): 0.94 0.96 0.94 2/55 8188
Raw data (/proc/8188/stat): 8188 (pb2sat) R 8187 8188 4060 0 -1 0 206476 0 0 0 5541 438 0 0 25 0 1 0 21487027 646230016 117393 4294967295 134512640 135987407 3221224560 3219862784 134556841 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8188/statm): 157771 117393 364 364 0 157407 0
[pid=8188] vsize: 631084
Current children cumulated CPU time (s) 59.79
Current children cumulated vsize (Kb) 631084

[startup+70.0046 s]
Raw data (loadavg): 0.95 0.96 0.94 2/55 8188
Raw data (/proc/8188/stat): 8188 (pb2sat) R 8187 8188 4060 0 -1 0 223168 0 0 0 6503 475 0 0 25 0 1 0 21487027 701276160 133884 4294967295 134512640 135987407 3221224560 3219965660 134637015 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8188/statm): 171210 133884 364 364 0 170846 0
[pid=8188] vsize: 684840
Current children cumulated CPU time (s) 69.78
Current children cumulated vsize (Kb) 684840

[startup+80.0052 s]
Raw data (loadavg): 0.95 0.96 0.94 2/55 8188
Raw data (/proc/8188/stat): 8188 (pb2sat) R 8187 8188 4060 0 -1 0 242375 0 0 0 7455 520 0 0 25 0 1 0 21487027 726147072 152861 4294967295 134512640 135987407 3221224560 3220214240 134878384 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8188/statm): 177282 152861 364 364 0 176918 0
[pid=8188] vsize: 709128
Current children cumulated CPU time (s) 79.75
Current children cumulated vsize (Kb) 709128

[startup+90.0057 s]
Raw data (loadavg): 0.96 0.96 0.94 2/55 8190
Raw data (/proc/8188/stat): 8188 (pb2sat) R 8187 8188 4060 0 -1 0 260346 0 0 0 8413 560 0 0 25 0 1 0 21487027 799592448 170616 4294967295 134512640 135987407 3221224560 3220555856 134877638 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8188/statm): 195213 170616 364 364 0 194849 0
[pid=8188] vsize: 780852
Current children cumulated CPU time (s) 89.73
Current children cumulated vsize (Kb) 780852

[startup+100.005 s]
Raw data (loadavg): 0.97 0.96 0.94 2/55 8190
Raw data (/proc/8188/stat): 8188 (pb2sat) R 8187 8188 4060 0 -1 0 277120 0 0 0 9374 598 0 0 25 0 1 0 21487027 821219328 187188 4294967295 134512640 135987407 3221224560 3220515388 135482121 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/8188/statm): 200493 187188 364 364 0 200129 0
[pid=8188] vsize: 801972
Current children cumulated CPU time (s) 99.72
Current children cumulated vsize (Kb) 801972
One traced child (pid=8188) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 108.262
CPU time (s): 107.979
CPU user time (s): 101.455
CPU system time (s): 6.52401
CPU usage (%): 99.7378
Max. virtual memory (cumulated for all children) (Kb): 801972

Verifier Data

ERROR: no interpretation found !