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-scorpion.opb
MD5SUM407688f2ee1c26681a4ae06671027d6f
Bench Categoryoptimization, big integers (OPTBIGINT)
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 5640
Biggest coefficient in the objective function 10536091648
Number of bits for the biggest coefficient in the objective function 34
Sum of the numbers in the objective function 589543467975
Number of bits of the sum of numbers in the objective function 40
Biggest number in a constraint 32768000000
Number of bits of the biggest number in a constraint 35
Biggest sum of numbers in a constraint 589543467975
Number of bits of the biggest sum of numbers40
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Number of variables7160
Total number of constraints388
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 constraints388
Minimum length of a constraint20
Maximum length of a constraint400

Trace number 10297

Launcher Data

LAUNCH ON wulflinc32 THE 2005-09-23 17:48:02 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=9049 boxname=wulflinc32 idbench=845 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  407688f2ee1c26681a4ae06671027d6f  /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-scorpion.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-scorpion.opb
IDLAUNCH: 9049
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.145
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		: 451.145
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:      1034724 kB
MemFree:        920996 kB
Buffers:         15296 kB
Cached:          78544 kB
SwapCached:          0 kB
Active:          42660 kB
Inactive:        54096 kB
HighTotal:      131072 kB
HighFree:        48096 kB
LowTotal:       903652 kB
LowFree:        872900 kB
SwapTotal:     2097892 kB
SwapFree:      2097892 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           6988 kB
Slab:            11344 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-09-23 17:49:29 (client local time) WITH STATUS 0 IN 86.8908 SECONDS
stats: 9049 7 86.8908 0

Solver Data

c This solver internally uses Chaff 2004.11.15 Simplified
*** glibc detected *** pb2sat: free(): invalid pointer: 0x109a1ab8 ***
======= Backtrace: =========
[0x8133e0b]
[0x81342a2]
[0x806658b]
[0x8054311]
[0x8054360]
[0x8054360]
[0x8054360]
[0x8054360]
[0x8054360]
[0x8054360]
[0x8054360]
[0x8054360]
[0x8054360]
[0x8054360]
[0x8054360]
[0x8054360]
[0x8054360]
[0x8056e70]
[0x8057c4e]
[0x805fe7b]
[0x804a6f2]
[0x8110e79]
[0x8048141]
======= Memory map: ========
08048000-081b1000 r-xp 00000000 00:14 3276939    /oldhome/oroussel/solvers/pb2sat
081b1000-081b4000 rw-p 00168000 00:14 3276939    /oldhome/oroussel/solvers/pb2sat
081b4000-10a2f000 rw-p 081b4000 00:00 0 
40000000-40001000 rw-p 40000000 00:00 0 
40024000-40045000 rw-p 40024000 00:00 0 
4e2e7000-4eae8000 rw-p 4e2e7000 00:00 0 
526e8000-5b6e9000 rw-p 400ca000 00:00 0 
5b700000-5b724000 rw-p 5b700000 00:00 0 
5b724000-5b800000 ---p 5b724000 00:00 0 
5c6ea000-70eec000 rw-p 5c6ea000 00:00 0 
bfff3000-c0000000 rw-p bfff3000 00:00 0 
ffffe000-fffff000 ---p 00000000 00:00 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/8812/stat): 8812 (pb2sat) R 8811 8812 4005 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 22065634 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 0 0 0
Raw data (/proc/8812/statm): 373 2 364 364 0 9 0
[pid=8812] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc32/normalized-mps-v2-13-7-scorpion.opb

[startup+10.0026 s]
Raw data (loadavg): 0.92 0.98 0.97 2/55 8812
Raw data (/proc/8812/stat): 8812 (pb2sat) R 8811 8812 4005 0 -1 0 27835 0 0 0 932 65 0 0 25 0 1 0 22065634 83030016 16688 4294967295 134512640 135987407 3221224560 3221212312 134636909 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8812/statm): 20271 16688 364 364 0 19907 0
[pid=8812] vsize: 81084
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 81084

[startup+20.0033 s]
Raw data (loadavg): 0.94 0.98 0.97 2/55 8812
Raw data (/proc/8812/stat): 8812 (pb2sat) R 8811 8812 4005 0 -1 0 55482 0 0 0 1863 132 0 0 25 0 1 0 22065634 160202752 33093 4294967295 134512640 135987407 3221224560 3221192448 134537552 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8812/statm): 39112 33093 364 364 0 38748 0
[pid=8812] vsize: 156448
Current children cumulated CPU time (s) 19.95
Current children cumulated vsize (Kb) 156448

[startup+30.0041 s]
Raw data (loadavg): 0.95 0.98 0.97 2/55 8812
Raw data (/proc/8812/stat): 8812 (pb2sat) R 8811 8812 4005 0 -1 0 95023 0 0 0 2779 214 0 0 25 0 1 0 22065634 310222848 50420 4294967295 134512640 135987407 3221224560 3221192320 134856405 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8812/statm): 75738 50420 364 364 0 75374 0
[pid=8812] vsize: 302952
Current children cumulated CPU time (s) 29.93
Current children cumulated vsize (Kb) 302952

[startup+40.0049 s]
Raw data (loadavg): 0.95 0.98 0.97 2/55 8812
Raw data (/proc/8812/stat): 8812 (pb2sat) R 8811 8812 4005 0 -1 0 111984 0 0 0 3738 255 0 0 25 0 1 0 22065634 315494400 67092 4294967295 134512640 135987407 3221224560 3221221184 134636933 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8812/statm): 77025 67092 364 364 0 76661 0
[pid=8812] vsize: 308100
Current children cumulated CPU time (s) 39.93
Current children cumulated vsize (Kb) 308100

[startup+50.0056 s]
Raw data (loadavg): 0.96 0.98 0.97 2/55 8812
Raw data (/proc/8812/stat): 8812 (pb2sat) R 8811 8812 4005 0 -1 0 165800 0 0 0 4619 368 0 0 25 0 1 0 22065634 645173248 101285 4294967295 134512640 135987407 3221224560 3221211664 134887487 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8812/statm): 157513 101285 364 364 0 157149 0
[pid=8812] vsize: 630052
Current children cumulated CPU time (s) 49.87
Current children cumulated vsize (Kb) 630052

[startup+60.0064 s]
Raw data (loadavg): 0.97 0.98 0.97 2/55 8812
Raw data (/proc/8812/stat): 8812 (pb2sat) R 8811 8812 4005 0 -1 0 191091 0 0 0 5557 430 0 0 25 0 1 0 22065634 586035200 101794 4294967295 134512640 135987407 3221224560 3221192016 134862265 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8812/statm): 143075 101794 364 364 0 142711 0
[pid=8812] vsize: 572300
Current children cumulated CPU time (s) 59.87
Current children cumulated vsize (Kb) 572300

[startup+70.0072 s]
Raw data (loadavg): 0.97 0.98 0.97 2/55 8812
Raw data (/proc/8812/stat): 8812 (pb2sat) R 8811 8812 4005 0 -1 0 206373 0 0 0 6526 461 0 0 25 0 1 0 22065634 590495744 116817 4294967295 134512640 135987407 3221224560 3221194172 134636908 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8812/statm): 144164 116817 364 364 0 143800 0
[pid=8812] vsize: 576656
Current children cumulated CPU time (s) 69.87
Current children cumulated vsize (Kb) 576656

[startup+80.008 s]
Raw data (loadavg): 0.97 0.98 0.97 2/55 8812
Raw data (/proc/8812/stat): 8812 (pb2sat) R 8811 8812 4005 0 -1 0 221672 0 0 0 7492 495 0 0 25 0 1 0 22065634 595091456 131859 4294967295 134512640 135987407 3221224560 3221195792 134537477 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8812/statm): 145286 131859 364 364 0 144922 0
[pid=8812] vsize: 581144
Current children cumulated CPU time (s) 79.87
Current children cumulated vsize (Kb) 581144
open syscall for file /dev/tty
open syscall for file /proc/self/maps
One traced child (pid=8812) ended because it received signal 6 (SIGABRT)
All traced children have exited ! Game is over.

Child ended because it received signal 6 (SIGABRT)
Real time (s): 87.0316
CPU time (s): 86.8908
CPU user time (s): 81.4836
CPU system time (s): 5.40718
CPU usage (%): 99.8382
Max. virtual memory (cumulated for all children) (Kb): 630052

Verifier Data

ERROR: no interpretation found !