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/plato.asu.edu/pub/unibo/normalized-mps-v2-20-10-blp-ic98.opb
MD5SUM9ca02e5a1540510bce8e96ecb8f82d9c
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 31
Biggest coefficient in the objective function 1073741824
Number of bits for the biggest coefficient in the objective function 31
Sum of the numbers in the objective function 2147483647
Number of bits of the sum of numbers in the objective function 31
Biggest number in a constraint 83886080000000
Number of bits of the biggest number in a constraint 47
Biggest sum of numbers in a constraint 783292842349555
Number of bits of the biggest sum of numbers50
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.00185
Number of variables15501
Total number of constraints14313
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)14177
Number of constraints which are nor clauses,nor cardinality constraints136
Minimum length of a constraint1
Maximum length of a constraint13581

Trace number 42633 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc1 THE 2005-06-16 13:07:33 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25853 boxname=wulflinc1 idbench=1153 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  9ca02e5a1540510bce8e96ecb8f82d9c  /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-blp-ic98.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc1/normalized-mps-v2-20-10-blp-ic98.opb
IDLAUNCH: 25853
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.053
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		: 451.053
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:        598592 kB
Buffers:         31392 kB
Cached:         379640 kB
SwapCached:       1184 kB
Active:          38780 kB
Inactive:       374600 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        598340 kB
SwapTotal:     2097136 kB
SwapFree:      2094888 kB
Dirty:              52 kB
Writeback:           0 kB
Mapped:           5364 kB
Slab:            16860 kB
Committed_AS:    92684 kB
PageTables:        332 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 13:09:37 (client local time) WITH STATUS 1 IN 122.971 SECONDS
stats: 25853 7 122.971 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): 0.92 0.95 0.90 2/55 18670
Raw data (stat): 18670 (runsolver) R 18669 8378 8377 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 914142260 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 0.95 0.91 2/55 18670
Raw data (stat): 18670 (pb2sat-v2) R 18669 8378 8377 0 -1 0 13403 0 0 0 969 30 0 0 25 0 1 0 914142260 44113920 7991 4294967295 134512640 135730672 3221224576 3219757112 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 10770 7991 301 301 0 10469 0
vsize: 43080
[startup+20.0003 s]
Raw data (loadavg): 0.94 0.95 0.91 2/55 18670
Raw data (stat): 18670 (pb2sat-v2) R 18669 8378 8377 0 -1 0 38467 0 0 0 1915 83 0 0 25 0 1 0 914142260 115073024 22897 4294967295 134512640 135730672 3221224576 3221221776 134579284 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 28094 22897 301 301 0 27793 0
vsize: 112376
[startup+30.0012 s]
Raw data (loadavg): 0.95 0.96 0.91 2/55 18670
Raw data (stat): 18670 (pb2sat-v2) R 18669 8378 8377 0 -1 0 57568 0 0 0 2868 130 0 0 25 0 1 0 914142260 159854592 35631 4294967295 134512640 135730672 3221224576 3221220880 135282716 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 39027 35631 301 301 0 38726 0
vsize: 156108
[startup+40.0018 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 18670
Raw data (stat): 18670 (pb2sat-v2) R 18669 8378 8377 0 -1 0 93403 0 0 0 3793 206 0 0 25 0 1 0 914142260 304803840 49813 4294967295 134512640 135730672 3221224576 3220837984 134786278 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 74415 49814 301 301 0 74114 0
vsize: 297660
[startup+50.0028 s]
Raw data (loadavg): 0.96 0.96 0.91 2/55 18670
Raw data (stat): 18670 (pb2sat-v2) R 18669 8378 8377 0 -1 0 106785 0 0 0 4758 240 0 0 25 0 1 0 914142260 307101696 62963 4294967295 134512640 135730672 3221224576 3220574032 135284212 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 74976 62963 301 301 0 74675 0
vsize: 299904
[startup+60.0025 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 18670
Raw data (stat): 18670 (pb2sat-v2) R 18669 8378 8377 0 -1 0 147698 0 0 0 5677 320 0 0 25 0 1 0 914142260 506753024 102697 4294967295 134512640 135730672 3221224576 3220755960 135282201 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 123719 102697 301 301 0 123418 0
vsize: 494876
[startup+70.0022 s]
Raw data (loadavg): 0.97 0.96 0.91 2/55 18670
Raw data (stat): 18670 (pb2sat-v2) R 18669 8378 8377 0 -1 0 180670 0 0 0 6598 400 0 0 25 0 1 0 914142260 536109056 93530 4294967295 134512640 135730672 3221224576 3220336912 134770772 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 130886 93531 301 301 0 130585 0
vsize: 523544
[startup+80.003 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 18670
Raw data (stat): 18670 (pb2sat-v2) R 18669 8378 8377 0 -1 0 192027 0 0 0 7572 426 0 0 25 0 1 0 914142260 569663488 104681 4294967295 134512640 135730672 3221224576 3220288256 134611253 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 139078 104681 301 301 0 138777 0
vsize: 556312
[startup+90.0028 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 18670
Raw data (stat): 18670 (pb2sat-v2) R 18669 8378 8377 0 -1 0 205050 0 0 0 8540 459 0 0 25 0 1 0 914142260 569663488 117469 4294967295 134512640 135730672 3221224576 3221221776 134579294 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 139078 117469 301 301 0 138777 0
vsize: 556312
[startup+100.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 18670
Raw data (stat): 18670 (pb2sat-v2) R 18669 8378 8377 0 -1 0 217938 0 0 0 9506 492 0 0 25 0 1 0 914142260 628916224 130163 4294967295 134512640 135730672 3221224576 3221005408 134784071 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 153544 130163 301 301 0 153243 0
vsize: 614176
[startup+110.004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/55 18670
Raw data (stat): 18670 (pb2sat-v2) R 18669 8378 8377 0 -1 0 232667 0 0 0 10466 532 0 0 25 0 1 0 914142260 642297856 144684 4294967295 134512640 135730672 3221224576 3220988488 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 156811 144684 301 301 0 156510 0
vsize: 627244
[startup+120.005 s]
Raw data (loadavg): 0.99 0.96 0.91 2/55 18670
Raw data (stat): 18670 (pb2sat-v2) R 18669 8378 8377 0 -1 0 241504 0 0 0 11430 568 0 0 25 0 1 0 914142260 296112128 72131 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72293 72131 301 301 0 71992 0
vsize: 289172
[startup+122.993 s]
Raw data (loadavg): 0.99 0.96 0.91 1/54 18670
Raw data (stat): 18670 (pb2sat-v2) R 18669 8378 8377 0 -1 0 241504 0 0 0 11430 568 0 0 25 0 1 0 914142260 296112128 72131 4294967295 134512640 135730672 3221224576 3221222976 134782612 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 72293 72131 301 301 0 71992 0
vsize: 0

Child status: 1
Real time (s): 122.993
CPU time (s): 122.971
CPU user time (s): 117.133
CPU system time (s): 5.83811
CPU usage (%): 99.9827
Max. virtual memory (Kb): 627244
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####