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).
  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

Namenormalized-opb/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-scsd1.opb
MD5SUM18ccaf10caa576369b352d4f561a8c9e
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 22800
Biggest coefficient in the objective function 268435456000000000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function 188158757647584526336
Number of bits of the sum of numbers in the objective function 68
Biggest number in a constraint 268435456000000000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint 188158757647584526336
Number of bits of the biggest sum of numbers68
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.197969
Number of variables22800
Total number of constraints77
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 constraints77
Minimum length of a constraint600
Maximum length of a constraint1500

Trace number 35092 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc9 THE 2005-05-28 12:12:37 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24396 boxname=wulflinc9 idbench=868 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  18ccaf10caa576369b352d4f561a8c9e  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-scsd1.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-scsd1.opb
IDLAUNCH: 24396
/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	: 899.07

/proc/meminfo:
MemTotal:      1034660 kB
MemFree:        699868 kB
Buffers:         35336 kB
Cached:         275008 kB
SwapCached:        552 kB
Active:          21152 kB
Inactive:       291244 kB
HighTotal:      131008 kB
HighFree:         6440 kB
LowTotal:       903652 kB
LowFree:        693428 kB
SwapTotal:     2097136 kB
SwapFree:      2095648 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5144 kB
Slab:            16572 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:14:31 (client local time) WITH STATUS 1 IN 112.557 SECONDS
stats: 24396 7 112.557 1
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c This solver internally uses Chaff 2004.11.15 Simplified

	Unexpected exception :
	St9bad_alloc
#### END SOLVER DATA ####
#### BEGIN WATCHER DATA ####
Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing VSIZE limit: 943718400 bytes
Enforcing Stack size limit: 67108864 bytes
Current StackSize limit: 67108864 bytes
Raw data (loadavg): 0.91 0.93 0.90 2/54 18431
Raw data (stat): 18431 (runsolver) R 18430 3944 3943 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806486640 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+9.9996 s]
Raw data (loadavg): 0.92 0.93 0.91 2/54 18431
Raw data (stat): 18431 (pb2sat) R 18430 3944 3943 0 -1 0 5956 0 0 0 985 13 0 0 25 0 1 0 806486640 21590016 4539 4294967295 134512640 135726644 3221224592 3214096576 135280689 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 5271 4539 300 300 0 4971 0
vsize: 21084
[startup+20.0003 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 18431
Raw data (stat): 18431 (pb2sat) R 18430 3944 3943 0 -1 0 40153 0 0 0 1916 82 0 0 25 0 1 0 806486640 132571136 24367 4294967295 134512640 135726644 3221224592 3212269764 135277538 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 32366 24367 300 300 0 32066 0
vsize: 129464
[startup+30 s]
Raw data (loadavg): 0.94 0.94 0.91 2/54 18431
Raw data (stat): 18431 (pb2sat) R 18430 3944 3943 0 -1 0 64323 0 0 0 2864 134 0 0 25 0 1 0 806486640 195973120 41886 4294967295 134512640 135726644 3221224592 3212173296 134782666 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 47845 41887 300 300 0 47545 0
vsize: 191380
[startup+40.0008 s]
Raw data (loadavg): 0.95 0.94 0.91 2/54 18431
Raw data (stat): 18431 (pb2sat) R 18430 3944 3943 0 -1 0 101560 0 0 0 3785 214 0 0 25 0 1 0 806486640 305680384 56909 4294967295 134512640 135726644 3221224592 3212333656 135280655 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74629 56909 300 300 0 74329 0
vsize: 298516
[startup+50.0015 s]
Raw data (loadavg): 0.96 0.94 0.91 2/54 18431
Raw data (stat): 18431 (pb2sat) R 18430 3944 3943 0 -1 0 121265 0 0 0 4743 255 0 0 25 0 1 0 806486640 368701440 76372 4294967295 134512640 135726644 3221224592 3212290816 135284833 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 90015 76373 300 300 0 89715 0
vsize: 360060
[startup+60.0013 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 18431
Raw data (stat): 18431 (pb2sat) R 18430 3944 3943 0 -1 0 161061 0 0 0 5668 331 0 0 25 0 1 0 806486640 496140288 96563 4294967295 134512640 135726644 3221224592 3212124072 134766301 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 121128 96563 300 300 0 120828 0
vsize: 484512
[startup+70.001 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 18431
Raw data (stat): 18431 (pb2sat) R 18430 3944 3943 0 -1 0 197259 0 0 0 6587 412 0 0 25 0 1 0 806486640 596803584 107958 4294967295 134512640 135726644 3221224592 3212103708 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 145704 107959 300 300 0 145404 0
vsize: 582816
[startup+80.0008 s]
Raw data (loadavg): 0.97 0.94 0.91 2/54 18431
Raw data (stat): 18431 (pb2sat) R 18430 3944 3943 0 -1 0 213030 0 0 0 7556 443 0 0 25 0 1 0 806486640 648200192 123513 4294967295 134512640 135726644 3221224592 3212089520 134810231 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 158252 123513 300 300 0 157952 0
vsize: 633008
[startup+90.0006 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 18431
Raw data (stat): 18431 (pb2sat) R 18430 3944 3943 0 -1 0 233647 0 0 0 8515 484 0 0 25 0 1 0 806486640 679018496 143876 4294967295 134512640 135726644 3221224592 3212096944 134554691 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 165776 143877 300 300 0 165476 0
vsize: 663104
[startup+100 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 18431
Raw data (stat): 18431 (pb2sat) R 18430 3944 3943 0 -1 0 254069 0 0 0 9474 526 0 0 25 0 1 0 806486640 709160960 164051 4294967295 134512640 135726644 3221224592 3212300568 135282351 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 173135 164051 300 300 0 172835 0
vsize: 692540
[startup+110 s]
Raw data (loadavg): 0.98 0.95 0.91 2/54 18431
Raw data (stat): 18431 (pb2sat) R 18430 3944 3943 0 -1 0 255572 0 0 0 10457 542 0 0 25 0 1 0 806486640 401862656 97690 4294967295 134512640 135726644 3221224592 3221222780 135277480 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98111 97690 300 300 0 97811 0
vsize: 392444
[startup+112.563 s]
Raw data (loadavg): 0.98 0.95 0.91 1/53 18431
Raw data (stat): 18431 (pb2sat) R 18430 3944 3943 0 -1 0 255572 0 0 0 10457 542 0 0 25 0 1 0 806486640 401862656 97690 4294967295 134512640 135726644 3221224592 3221222780 135277480 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 98111 97690 300 300 0 97811 0
vsize: 0

Child status: 1
Real time (s): 112.563
CPU time (s): 112.557
CPU user time (s): 106.935
CPU system time (s): 5.62215
CPU usage (%): 99.9945
Max. virtual memory (Kb): 692540
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####