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/MIPLIB/miplib2003/normalized-mps-v2-20-10-rd-rplusc-21.opb
MD5SUMd2b612d978c6eb050af622d4cf2ae598
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 48
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 2160590747
Number of bits of the sum of numbers in the objective function 32
Biggest number in a constraint 2962281908055777280
Number of bits of the biggest number in a constraint 62
Biggest sum of numbers in a constraint 6289973478481187311
Number of bits of the biggest sum of numbers63
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark45.823
Number of variables3616
Total number of constraints126450
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)699
Number of constraints which are nor clauses,nor cardinality constraints125751
Minimum length of a constraint1
Maximum length of a constraint189

Trace number 35224

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc10 THE 2005-05-28 12:29:53 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=24526 boxname=wulflinc10 idbench=998 idsolver=17 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d2b612d978c6eb050af622d4cf2ae598  /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-rd-rplusc-21.opb
REAL COMMAND:  pb2sat /oldhome/oroussel/tmp/wulflinc10/normalized-mps-v2-20-10-rd-rplusc-21.opb
IDLAUNCH: 24526
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 450.999
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		: 450.999
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:        341172 kB
Buffers:         29300 kB
Cached:         642320 kB
SwapCached:         84 kB
Active:         270260 kB
Inactive:       403988 kB
HighTotal:      131008 kB
HighFree:          280 kB
LowTotal:       903652 kB
LowFree:        340892 kB
SwapTotal:     2097136 kB
SwapFree:      2096728 kB
Dirty:               8 kB
Writeback:           0 kB
Mapped:           5880 kB
Slab:            13480 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-05-28 12:31:32 (client local time) WITH STATUS 1 IN 94.2037 SECONDS
stats: 24526 7 94.2037 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): 1.04 0.97 0.91 1/54 23154
Raw data (stat): 23154 (runsolver) D 23153 15547 15546 0 -1 64 8 0 0 0 0 0 0 0 18 0 1 0 806605512 884736 94 4294967295 134512640 135332820 3221224448 3221219628 135092226 0 2147483391 7 90112 3225161850 0 0 17 1 0 0
Raw data (statm): 216 94 205 205 0 11 0
vsize: 864
[startup+10.0004 s]
Raw data (loadavg): 1.04 0.97 0.91 2/54 23154
Raw data (stat): 23154 (pb2sat) R 23153 15547 15546 0 -1 0 31192 0 0 0 935 63 0 0 25 0 1 0 806605512 130273280 20201 4294967295 134512640 135726644 3221224576 3221193104 134771775 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 31805 20201 300 300 0 31505 0
vsize: 127220
[startup+20 s]
Raw data (loadavg): 1.03 0.97 0.91 2/54 23154
Raw data (stat): 23154 (pb2sat) R 23153 15547 15546 0 -1 0 59986 0 0 0 1879 120 0 0 25 0 1 0 806605512 184258560 38022 4294967295 134512640 135726644 3221224576 3221191836 134604449 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 44985 38022 300 300 0 44685 0
vsize: 179940
[startup+30.0005 s]
Raw data (loadavg): 1.02 0.97 0.91 2/54 23154
Raw data (stat): 23154 (pb2sat) R 23153 15547 15546 0 -1 0 98314 0 0 0 2802 197 0 0 25 0 1 0 806605512 294199296 53748 4294967295 134512640 135726644 3221224576 3221193072 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 71826 53748 300 300 0 71526 0
vsize: 287304
[startup+40.0081 s]
Raw data (loadavg): 1.02 0.97 0.91 2/54 23154
Raw data (stat): 23154 (pb2sat) R 23153 15547 15546 0 -1 0 118360 0 0 0 3761 239 0 0 25 0 1 0 806605512 358842368 73524 4294967295 134512640 135726644 3221224576 3221191072 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 87608 73524 300 300 0 87308 0
vsize: 350432
[startup+50.01 s]
Raw data (loadavg): 1.09 0.99 0.92 2/54 23154
Raw data (stat): 23154 (pb2sat) R 23153 15547 15546 0 -1 0 154632 0 0 0 4687 313 0 0 25 0 1 0 806605512 467054592 89802 4294967295 134512640 135726644 3221224576 3221191784 135281806 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 114027 89802 300 300 0 113727 0
vsize: 456108
[startup+60.0102 s]
Raw data (loadavg): 1.08 0.99 0.92 2/54 23154
Raw data (stat): 23154 (pb2sat) R 23153 15547 15546 0 -1 0 194384 0 0 0 5602 398 0 0 25 0 1 0 806605512 582856704 104728 4294967295 134512640 135726644 3221224576 3221191764 134766407 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 142299 104728 300 300 0 141999 0
vsize: 569196
[startup+70.0097 s]
Raw data (loadavg): 1.06 0.99 0.92 2/54 23154
Raw data (stat): 23154 (pb2sat) R 23153 15547 15546 0 -1 0 212429 0 0 0 6567 433 0 0 25 0 1 0 806605512 644390912 122529 4294967295 134512640 135726644 3221224576 3221192144 135105730 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 157322 122529 300 300 0 157022 0
vsize: 629288
[startup+80.0107 s]
Raw data (loadavg): 1.05 0.99 0.92 2/54 23154
Raw data (stat): 23154 (pb2sat) R 23153 15547 15546 0 -1 0 233567 0 0 0 7527 473 0 0 25 0 1 0 806605512 677101568 143381 4294967295 134512640 135726644 3221224576 3221191072 134554691 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165308 143381 300 300 0 165008 0
vsize: 661232
[startup+90.0109 s]
Raw data (loadavg): 1.04 0.99 0.92 2/54 23154
Raw data (stat): 23154 (pb2sat) R 23153 15547 15546 0 -1 0 243624 0 0 0 8508 493 0 0 25 0 1 0 806605512 703070208 153320 4294967295 134512640 135726644 3221224576 3221222828 135277555 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171648 153320 300 300 0 171348 0
vsize: 686592
[startup+94.202 s]
Raw data (loadavg): 1.04 0.99 0.92 1/53 23154
Raw data (stat): 23154 (pb2sat) R 23153 15547 15546 0 -1 0 243624 0 0 0 8508 493 0 0 25 0 1 0 806605512 703070208 153320 4294967295 134512640 135726644 3221224576 3221222828 135277555 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 171648 153320 300 300 0 171348 0
vsize: 0

Child status: 1
Real time (s): 94.2017
CPU time (s): 94.2037
CPU user time (s): 88.9545
CPU system time (s): 5.2492
CPU usage (%): 100.002
Max. virtual memory (Kb): 686592
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####