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/MIPLIB/miplib2003/normalized-mps-v2-20-10-van.opb
MD5SUM786f5a2dc2f55d8aea2bd35c440c54ff
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 29268441542
Optimality of the best value was proved NO
Number of terms in the objective function 192
Biggest coefficient in the objective function 2427002644
Number of bits for the biggest coefficient in the objective function 32
Sum of the numbers in the objective function 319999999936
Number of bits of the sum of numbers in the objective function 39
Biggest number in a constraint 226795425792
Number of bits of the biggest number in a constraint 38
Biggest sum of numbers in a constraint 973128929893
Number of bits of the biggest sum of numbers40
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1272.55
Number of variables135360
Total number of constraints39811
Number of constraints which are clauses128
Number of constraints which are cardinality constraints (but not clauses)195
Number of constraints which are nor clauses,nor cardinality constraints39488
Minimum length of a constraint1
Maximum length of a constraint496

Trace number 10054

Launcher Data

LAUNCH ON wulflinc7 THE 2005-09-23 16:43:14 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=8810 boxname=wulflinc7 idbench=606 idsolver=8 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  786f5a2dc2f55d8aea2bd35c440c54ff  /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-van.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-van.opb
IDLAUNCH: 8810
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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	: 890.88

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.220
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:        818208 kB
Buffers:         12444 kB
Cached:         186184 kB
SwapCached:          0 kB
Active:         148780 kB
Inactive:        52784 kB
HighTotal:      131008 kB
HighFree:         3724 kB
LowTotal:       903652 kB
LowFree:        814484 kB
SwapTotal:     2097136 kB
SwapFree:      2097136 kB
Dirty:               0 kB
Writeback:           0 kB
Mapped:           6984 kB
Slab:             9228 kB
Committed_AS:    63660 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-23 16:44:59 (client local time) WITH STATUS 1 IN 102.785 SECONDS
stats: 8810 7 102.785 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/9965/stat): 9965 (pb2sat) R 9964 9965 4059 0 -1 0 18 0 0 0 0 0 0 0 23 0 1 0 21732548 1527808 2 4294967295 134512640 135987407 3221224560 3221224560 134512928 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/9965/statm): 373 2 364 364 0 9 0
[pid=9965] vsize: 1492
open syscall for file /oldhome/oroussel/tmp/wulflinc7/normalized-mps-v2-20-10-van.opb

[startup+10.0021 s]
Raw data (loadavg): 0.96 0.96 0.92 2/55 9965
Raw data (/proc/9965/stat): 9965 (pb2sat) R 9964 9965 4059 0 -1 0 19895 0 0 0 950 46 0 0 25 0 1 0 21732548 61321216 11856 4294967295 134512640 135987407 3221224560 3221221952 134616270 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9965/statm): 14971 11856 364 364 0 14607 0
[pid=9965] vsize: 59884
Current children cumulated CPU time (s) 9.96
Current children cumulated vsize (Kb) 59884

[startup+20.0027 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 9965
Raw data (/proc/9965/stat): 9965 (pb2sat) R 9964 9965 4059 0 -1 0 47110 0 0 0 1887 106 0 0 25 0 1 0 21732548 140935168 30910 4294967295 134512640 135987407 3221224560 3221092384 134558658 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9965/statm): 34408 30910 364 364 0 34044 0
[pid=9965] vsize: 137632
Current children cumulated CPU time (s) 19.93
Current children cumulated vsize (Kb) 137632

[startup+30.0034 s]
Raw data (loadavg): 0.97 0.96 0.92 2/55 9965
Raw data (/proc/9965/stat): 9965 (pb2sat) R 9964 9965 4059 0 -1 0 84471 0 0 0 2804 186 0 0 25 0 1 0 21732548 262934528 52199 4294967295 134512640 135987407 3221224560 3221093308 134636959 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9965/statm): 64193 52199 364 364 0 63829 0
[pid=9965] vsize: 256772
Current children cumulated CPU time (s) 29.9
Current children cumulated vsize (Kb) 256772

[startup+40.004 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 9965
Raw data (/proc/9965/stat): 9965 (pb2sat) R 9964 9965 4059 0 -1 0 114642 0 0 0 3738 251 0 0 25 0 1 0 21732548 370069504 69866 4294967295 134512640 135987407 3221224560 3221136996 134636948 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9965/statm): 90349 69866 364 364 0 89985 0
[pid=9965] vsize: 361396
Current children cumulated CPU time (s) 39.89
Current children cumulated vsize (Kb) 361396

[startup+50.0046 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 9965
Raw data (/proc/9965/stat): 9965 (pb2sat) R 9964 9965 4059 0 -1 0 152805 0 0 0 4663 321 0 0 25 0 1 0 21732548 569450496 107123 4294967295 134512640 135987407 3221224560 3221134800 134854970 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9965/statm): 139026 107123 364 364 0 138662 0
[pid=9965] vsize: 556104
Current children cumulated CPU time (s) 49.84
Current children cumulated vsize (Kb) 556104

[startup+60.0053 s]
Raw data (loadavg): 0.98 0.96 0.92 2/55 9965
Raw data (/proc/9965/stat): 9965 (pb2sat) R 9964 9965 4059 0 -1 0 201734 0 0 0 5560 422 0 0 25 0 1 0 21732548 738541568 137118 4294967295 134512640 135987407 3221224560 3221068528 134887487 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9965/statm): 180308 137118 364 364 0 179944 0
[pid=9965] vsize: 721232
Current children cumulated CPU time (s) 59.82
Current children cumulated vsize (Kb) 721232

[startup+70.0059 s]
Raw data (loadavg): 0.98 0.97 0.92 2/55 9965
Raw data (/proc/9965/stat): 9965 (pb2sat) R 9964 9965 4059 0 -1 0 220070 0 0 0 6515 465 0 0 25 0 1 0 21732548 694001664 130667 4294967295 134512640 135987407 3221224560 3221119852 134636997 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9965/statm): 169434 130667 364 364 0 169070 0
[pid=9965] vsize: 677736
Current children cumulated CPU time (s) 69.8
Current children cumulated vsize (Kb) 677736

[startup+80.0065 s]
Raw data (loadavg): 0.99 0.97 0.92 2/55 9965
Raw data (/proc/9965/stat): 9965 (pb2sat) R 9964 9965 4059 0 -1 0 240352 0 0 0 7470 508 0 0 25 0 1 0 21732548 720359424 150705 4294967295 134512640 135987407 3221224560 3221183212 135499883 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9965/statm): 175869 150705 364 364 0 175505 0
[pid=9965] vsize: 703476
Current children cumulated CPU time (s) 79.78
Current children cumulated vsize (Kb) 703476

[startup+90.0072 s]
Raw data (loadavg): 0.99 0.97 0.92 2/55 9965
Raw data (/proc/9965/stat): 9965 (pb2sat) R 9964 9965 4059 0 -1 0 260998 0 0 0 8423 553 0 0 25 0 1 0 21732548 749015040 171110 4294967295 134512640 135987407 3221224560 3221151088 134558024 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9965/statm): 182865 171110 364 364 0 182501 0
[pid=9965] vsize: 731460
Current children cumulated CPU time (s) 89.76
Current children cumulated vsize (Kb) 731460

[startup+100.007 s]
Raw data (loadavg): 0.99 0.97 0.92 2/55 9965
Raw data (/proc/9965/stat): 9965 (pb2sat) R 9964 9965 4059 0 -1 0 275685 0 0 0 9391 582 0 0 25 0 1 0 21732548 824860672 185643 4294967295 134512640 135987407 3221224560 3221223076 134562648 0 0 5 16384 0 0 0 17 1 0 0
Raw data (/proc/9965/statm): 201382 185643 364 364 0 201018 0
[pid=9965] vsize: 805528
Current children cumulated CPU time (s) 99.73
Current children cumulated vsize (Kb) 805528
One traced child (pid=9965) exited with status: 1
All traced children have exited ! Game is over.

Child status: 1
Real time (s): 103.056
CPU time (s): 102.785
CPU user time (s): 96.5803
CPU system time (s): 6.20506
CPU usage (%): 99.7375
Max. virtual memory (cumulated for all children) (Kb): 805528

Verifier Data

ERROR: no interpretation found !