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-sp97ar.opb
MD5SUM978e3479aff123296d0a3461e698e01d
Bench Categoryoptimization, medium integers (OPTMEDINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 14101
Biggest coefficient in the objective function 292878668
Number of bits for the biggest coefficient in the objective function 29
Sum of the numbers in the objective function 975388850291
Number of bits of the sum of numbers in the objective function 40
Biggest number in a constraint 292878668
Number of bits of the biggest number in a constraint 29
Biggest sum of numbers in a constraint 975388850291
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 benchmark10.9513
Number of variables14101
Total number of constraints15862
Number of constraints which are clauses181
Number of constraints which are cardinality constraints (but not clauses)15263
Number of constraints which are nor clauses,nor cardinality constraints418
Minimum length of a constraint1
Maximum length of a constraint2463

Trace number 35391 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc4 THE 2005-05-28 13:04:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24700 boxname=wulflinc4 idbench=1172 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  978e3479aff123296d0a3461e698e01d  /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-sp97ar.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc4/normalized-mps-v2-20-10-sp97ar.opb
IDLAUNCH: 24700
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.169
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		: 451.169
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:        741140 kB
Buffers:         33916 kB
Cached:         238260 kB
SwapCached:        640 kB
Active:          32324 kB
Inactive:       242060 kB
HighTotal:      131008 kB
HighFree:        12768 kB
LowTotal:       903652 kB
LowFree:        728372 kB
SwapTotal:     2097136 kB
SwapFree:      2095656 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5304 kB
Slab:            13300 kB
Committed_AS:    71796 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 13:06:34 (client local time) WITH STATUS 1 IN 99.9938 SECONDS
stats: 24700 7 99.9938 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): 0.90 0.97 0.91 1/54 30528
Raw data (stat): 30528 (runsolver) R 30527 21152 21151 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806792794 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): 0.91 0.97 0.91 2/54 30528
Raw data (stat): 30528 (pb2sat) R 30527 21152 21151 0 -1 0 20053 0 0 0 954 45 0 0 25 0 1 0 806792794 67473408 12141 4294967295 134512640 135726644 3221224576 3220423680 134782642 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 16473 12141 300 300 0 16173 0
vsize: 65892
[startup+20.0013 s]
Raw data (loadavg): 0.93 0.97 0.91 2/54 30528
Raw data (stat): 30528 (pb2sat) R 30527 21152 21151 0 -1 0 50981 0 0 0 1890 109 0 0 25 0 1 0 806792794 156516352 29000 4294967295 134512640 135726644 3221224576 3219417992 135287557 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 38212 29000 300 300 0 37912 0
vsize: 152848
[startup+30.0022 s]
Raw data (loadavg): 0.94 0.97 0.91 2/54 30528
Raw data (stat): 30528 (pb2sat) R 30527 21152 21151 0 -1 0 79751 0 0 0 2833 166 0 0 25 0 1 0 806792794 248483840 47830 4294967295 134512640 135726644 3221224576 3219649664 134782483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 60665 47830 300 300 0 60365 0
vsize: 242660
[startup+40.0034 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 30528
Raw data (stat): 30528 (pb2sat) R 30527 21152 21151 0 -1 0 108278 0 0 0 3770 230 0 0 25 0 1 0 806792794 349806592 63812 4294967295 134512640 135726644 3221224576 3218962000 134780435 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85402 63812 300 300 0 85102 0
vsize: 341608
[startup+50.0039 s]
Raw data (loadavg): 0.95 0.97 0.91 2/54 30528
Raw data (stat): 30528 (pb2sat) R 30527 21152 21151 0 -1 0 150674 0 0 0 4689 311 0 0 25 0 1 0 806792794 554323968 104997 4294967295 134512640 135726644 3221224576 3220003300 135278564 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 135333 104997 300 300 0 135033 0
vsize: 541332
[startup+60.0038 s]
Raw data (loadavg): 0.96 0.97 0.91 2/54 30528
Raw data (stat): 30528 (pb2sat) R 30527 21152 21151 0 -1 0 163014 0 0 0 5661 339 0 0 25 0 1 0 806792794 487211008 98658 4294967295 134512640 135726644 3221224576 3215574592 134607690 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 118948 98659 300 300 0 118648 0
vsize: 475792
[startup+70.0036 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 30528
Raw data (stat): 30528 (pb2sat) R 30527 21152 21151 0 -1 0 203550 0 0 0 6571 429 0 0 25 0 1 0 806792794 605315072 114369 4294967295 134512640 135726644 3221224576 3215571264 134767237 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 147782 114369 300 300 0 147482 0
vsize: 591128
[startup+80.0115 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 30528
Raw data (stat): 30528 (pb2sat) R 30527 21152 21151 0 -1 0 222006 0 0 0 7532 469 0 0 25 0 1 0 806792794 667820032 132586 4294967295 134512640 135726644 3221224576 3217438428 135298010 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 163042 132588 300 300 0 162742 0
vsize: 652168
[startup+90.0114 s]
Raw data (loadavg): 0.97 0.97 0.91 2/54 30530
Raw data (stat): 30528 (pb2sat) R 30527 21152 21151 0 -1 0 244063 0 0 0 8487 514 0 0 25 0 1 0 806792794 702603264 154354 4294967295 134512640 135726644 3221224576 3215570060 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171534 154355 300 300 0 171234 0
vsize: 686136
[startup+99.9905 s]
Raw data (loadavg): 0.98 0.97 0.91 1/53 30530
Raw data (stat): 30528 (pb2sat) R 30527 21152 21151 0 -1 0 244063 0 0 0 8487 514 0 0 25 0 1 0 806792794 702603264 154354 4294967295 134512640 135726644 3221224576 3215570060 134604449 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171534 154355 300 300 0 171234 0
vsize: 0

Child status: 1
Real time (s): 99.9901
CPU time (s): 99.9938
CPU user time (s): 94.5256
CPU system time (s): 5.46817
CPU usage (%): 100.004
Max. virtual memory (Kb): 686136
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####