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/fctp/normalized-mps-v2-20-10-ran12x12.opb
MD5SUMe4638ea46dbf743c721f5094f551c5b7
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 6257268
Optimality of the best value was proved NO
Number of terms in the objective function 4464
Biggest coefficient in the objective function 5368709120
Number of bits for the biggest coefficient in the objective function 33
Sum of the numbers in the objective function 856864234722
Number of bits of the sum of numbers in the objective function 40
Biggest number in a constraint 5368709120
Number of bits of the biggest number in a constraint 33
Biggest sum of numbers in a constraint 856864234722
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 benchmark1232.17
Number of variables4464
Total number of constraints168
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 constraints168
Minimum length of a constraint31
Maximum length of a constraint360

Trace number 35310

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc9 THE 2005-05-28 12:50:42 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24626 boxname=wulflinc9 idbench=1098 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  e4638ea46dbf743c721f5094f551c5b7  /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-ran12x12.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc9/normalized-mps-v2-20-10-ran12x12.opb
IDLAUNCH: 24626
/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:        707320 kB
Buffers:         35656 kB
Cached:         267820 kB
SwapCached:        552 kB
Active:          18400 kB
Inactive:       287104 kB
HighTotal:      131008 kB
HighFree:         2380 kB
LowTotal:       903652 kB
LowFree:        704940 kB
SwapTotal:     2097136 kB
SwapFree:      2095648 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5144 kB
Slab:            16140 kB
Committed_AS:    63596 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:52:22 (client local time) WITH STATUS 1 IN 99.7428 SECONDS
stats: 24626 7 99.7428 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): 0.98 0.96 0.91 2/54 19267
Raw data (stat): 19267 (runsolver) R 19266 3944 3943 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 806715121 884736 94 4294967295 134512640 135332820 3221224464 3221219644 135092226 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0011 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 19267
Raw data (stat): 19267 (pb2sat) R 19266 3944 3943 0 -1 0 30714 0 0 0 932 67 0 0 25 0 1 0 806715121 92143616 19569 4294967295 134512640 135726644 3221224576 3219505020 134605166 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 22496 19569 300 300 0 22196 0
vsize: 89984
[startup+20.0013 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 19267
Raw data (stat): 19267 (pb2sat) R 19266 3944 3943 0 -1 0 60773 0 0 0 1868 131 0 0 25 0 1 0 806715121 179859456 38398 4294967295 134512640 135726644 3221224576 3219608464 134767076 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43911 38399 300 300 0 43611 0
vsize: 175644
[startup+30.0018 s]
Raw data (loadavg): 0.98 0.97 0.91 2/54 19267
Raw data (stat): 19267 (pb2sat) R 19266 3944 3943 0 -1 0 100698 0 0 0 2782 217 0 0 25 0 1 0 806715121 334880768 56133 4294967295 134512640 135726644 3221224576 3219624552 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 81758 56133 300 300 0 81458 0
vsize: 327032
[startup+40.0019 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 19267
Raw data (stat): 19267 (pb2sat) R 19266 3944 3943 0 -1 0 120405 0 0 0 3739 261 0 0 25 0 1 0 806715121 354750464 75578 4294967295 134512640 135726644 3221224576 3219791160 134784385 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 86609 75579 300 300 0 86309 0
vsize: 346436
[startup+50.0017 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 19267
Raw data (stat): 19267 (pb2sat) R 19266 3944 3943 0 -1 0 164982 0 0 0 4652 347 0 0 25 0 1 0 806715121 498372608 100548 4294967295 134512640 135726644 3221224576 3219738128 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 121673 100549 300 300 0 121373 0
vsize: 486692
[startup+60.0022 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 19267
Raw data (stat): 19267 (pb2sat) R 19266 3944 3943 0 -1 0 200375 0 0 0 5569 431 0 0 25 0 1 0 806715121 632590336 111173 4294967295 134512640 135726644 3221224576 3219861064 135280705 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 154441 111173 300 300 0 154141 0
vsize: 617764
[startup+70.0026 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 19267
Raw data (stat): 19267 (pb2sat) R 19266 3944 3943 0 -1 0 216634 0 0 0 6538 462 0 0 25 0 1 0 806715121 638537728 127171 4294967295 134512640 135726644 3221224576 3219886032 134766453 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 155893 127172 300 300 0 155593 0
vsize: 623572
[startup+80.0041 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 19267
Raw data (stat): 19267 (pb2sat) R 19266 3944 3943 0 -1 0 238728 0 0 0 7489 512 0 0 25 0 1 0 806715121 670031872 149010 4294967295 134512640 135726644 3221224576 3219961752 134784091 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 163582 149010 300 300 0 163282 0
vsize: 654328
[startup+90.0045 s]
Raw data (loadavg): 0.99 0.97 0.91 2/54 19267
Raw data (stat): 19267 (pb2sat) R 19266 3944 3943 0 -1 0 256641 0 0 0 8446 554 0 0 25 0 1 0 806715121 745910272 166716 4294967295 134512640 135726644 3221224576 3220208880 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182107 166716 300 300 0 181807 0
vsize: 728428
[startup+99.7365 s]
Raw data (loadavg): 0.99 0.97 0.91 1/53 19267
Raw data (stat): 19267 (pb2sat) R 19266 3944 3943 0 -1 0 256641 0 0 0 8446 554 0 0 25 0 1 0 806715121 745910272 166716 4294967295 134512640 135726644 3221224576 3220208880 134782642 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 182107 166716 300 300 0 181807 0
vsize: 0

Child status: 1
Real time (s): 99.7358
CPU time (s): 99.7428
CPU user time (s): 93.6218
CPU system time (s): 6.12107
CPU usage (%): 100.007
Max. virtual memory (Kb): 728428
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####