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-modszk1.opb
MD5SUM4c80436c6cab58e82888f1a9aa37d4f5
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 29700
Biggest coefficient in the objective function 197378980184064000
Number of bits for the biggest coefficient in the objective function 58
Sum of the numbers in the objective function -3892337408572559116
Number of bits of the sum of numbers in the objective function 64
Biggest number in a constraint 197378980184064000
Number of bits of the biggest number in a constraint 58
Biggest sum of numbers in a constraint -3892337408572559116
Number of bits of the biggest sum of numbers64
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.420935
Number of variables48602
Total number of constraints686
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 constraints686
Minimum length of a constraint30
Maximum length of a constraint600

Trace number 42328 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 05:41:21 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25547 boxname=wulflinc5 idbench=847 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  4c80436c6cab58e82888f1a9aa37d4f5  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-modszk1.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-modszk1.opb
IDLAUNCH: 25547
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        752000 kB
Buffers:         34616 kB
Cached:         224784 kB
SwapCached:        700 kB
Active:          75856 kB
Inactive:       185672 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        751748 kB
SwapTotal:     2097136 kB
SwapFree:      2095508 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            15492 kB
Committed_AS:    63712 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 05:43:31 (client local time) WITH STATUS 1 IN 129.569 SECONDS
stats: 25547 7 129.569 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 0.95 0.91 2/54 9226
Raw data (stat): 9226 (runsolver) R 9225 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968321914 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+10.0006 s]
Raw data (loadavg): 0.93 0.96 0.91 2/54 9226
Raw data (stat): 9226 (pb2sat-v2) R 9225 7266 7265 0 -1 0 2150 0 0 0 993 6 0 0 25 0 1 0 968321914 7958528 1475 4294967295 134512640 135730672 3221224576 3221221664 134561667 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 1943 1475 301 301 0 1642 0
vsize: 7772
[startup+20.0002 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 9226
Raw data (stat): 9226 (pb2sat-v2) R 9225 7266 7265 0 -1 0 5105 0 0 0 1985 13 0 0 25 0 1 0 968321914 16666624 3488 4294967295 134512640 135730672 3221224576 3221167584 134788712 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 4069 3489 301 301 0 3768 0
vsize: 16276
[startup+30.0014 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 9226
Raw data (stat): 9226 (pb2sat-v2) R 9225 7266 7265 0 -1 0 38720 0 0 0 2926 73 0 0 25 0 1 0 968321914 141774848 27416 4294967295 134512640 135730672 3221224576 3221175776 135282231 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 34613 27416 301 301 0 34312 0
vsize: 138452
[startup+40.0007 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 9226
Raw data (stat): 9226 (pb2sat-v2) R 9225 7266 7265 0 -1 0 61586 0 0 0 3882 116 0 0 25 0 1 0 968321914 184246272 39299 4294967295 134512640 135730672 3221224576 3221183248 134770605 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 44982 39300 301 301 0 44681 0
vsize: 179928
[startup+50.0015 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 9226
Raw data (stat): 9226 (pb2sat-v2) R 9225 7266 7265 0 -1 0 99087 0 0 0 4809 190 0 0 25 0 1 0 968321914 297357312 54607 4294967295 134512640 135730672 3221224576 3221192616 135284037 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72597 54607 301 301 0 72296 0
vsize: 290388
[startup+60.0019 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 9226
Raw data (stat): 9226 (pb2sat-v2) R 9225 7266 7265 0 -1 0 114361 0 0 0 5780 219 0 0 25 0 1 0 968321914 350396416 69685 4294967295 134512640 135730672 3221224576 3221203332 135281221 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85546 69685 301 301 0 85245 0
vsize: 342184
[startup+70.002 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 9226
Raw data (stat): 9226 (pb2sat-v2) R 9225 7266 7265 0 -1 0 143637 0 0 0 6729 271 0 0 25 0 1 0 968321914 508084224 97862 4294967295 134512640 135730672 3221224576 3221175952 134775558 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 124044 97864 301 301 0 123743 0
vsize: 496176
[startup+80.0027 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 9226
Raw data (stat): 9226 (pb2sat-v2) R 9225 7266 7265 0 -1 0 179872 0 0 0 7655 345 0 0 25 0 1 0 968321914 545284096 90842 4294967295 134512640 135730672 3221224576 3221183280 134606804 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 133126 90842 301 301 0 132825 0
vsize: 532504
[startup+90.0028 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 9226
Raw data (stat): 9226 (pb2sat-v2) R 9225 7266 7265 0 -1 0 191121 0 0 0 8634 366 0 0 25 0 1 0 968321914 578838528 101882 4294967295 134512640 135730672 3221224576 3221187072 135284048 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 141318 101882 301 301 0 141017 0
vsize: 565272
[startup+100.003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 9226
Raw data (stat): 9226 (pb2sat-v2) R 9225 7266 7265 0 -1 0 211092 0 0 0 9595 404 0 0 25 0 1 0 968321914 606547968 121607 4294967295 134512640 135730672 3221224576 3221194416 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 148083 121608 301 301 0 147782 0
vsize: 592332
[startup+110.003 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 9226
Raw data (stat): 9226 (pb2sat-v2) R 9225 7266 7265 0 -1 0 222374 0 0 0 10574 426 0 0 25 0 1 0 968321914 612139008 132700 4294967295 134512640 135730672 3221224576 3221174520 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 149448 132700 301 301 0 149147 0
vsize: 597792
[startup+120.003 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 9226
Raw data (stat): 9226 (pb2sat-v2) R 9225 7266 7265 0 -1 0 232058 0 0 0 11556 444 0 0 25 0 1 0 968321914 662896640 142205 4294967295 134512640 135730672 3221224576 3221179036 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161840 142206 301 301 0 161539 0
vsize: 647360
[startup+129.57 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 9226
Raw data (stat): 9226 (pb2sat-v2) R 9225 7266 7265 0 -1 0 232058 0 0 0 11556 444 0 0 25 0 1 0 968321914 662896640 142205 4294967295 134512640 135730672 3221224576 3221179036 134608033 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161840 142206 301 301 0 161539 0
vsize: 0

Child status: 1
Real time (s): 129.57
CPU time (s): 129.569
CPU user time (s): 124.777
CPU system time (s): 4.79227
CPU usage (%): 99.9996
Max. virtual memory (Kb): 647360
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####