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-share1b.opb
MD5SUM8d3c68301f62da0e55b9c337557ad45c
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 930
Biggest coefficient in the objective function 268435456000000
Number of bits for the biggest coefficient in the objective function 48
Sum of the numbers in the objective function 2701523689249770
Number of bits of the sum of numbers in the objective function 52
Biggest number in a constraint 7098668259737600
Number of bits of the biggest number in a constraint 53
Biggest sum of numbers in a constraint 57387730531810471
Number of bits of the biggest sum of numbers56
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.317951
Number of variables6750
Total number of constraints117
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 constraints117
Minimum length of a constraint30
Maximum length of a constraint1110

Trace number 42357 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc2 THE 2005-06-16 06:02:02 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25575 boxname=wulflinc2 idbench=875 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  8d3c68301f62da0e55b9c337557ad45c  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-share1b.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-share1b.opb
IDLAUNCH: 25575
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.191
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		: 451.191
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:        724524 kB
Buffers:         34736 kB
Cached:         249612 kB
SwapCached:       4448 kB
Active:          62024 kB
Inactive:       227400 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        724272 kB
SwapTotal:     2097136 kB
SwapFree:      2091696 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5056 kB
Slab:            14896 kB
Committed_AS:    71904 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 06:03:52 (client local time) WITH STATUS 1 IN 110.065 SECONDS
stats: 25575 7 110.065 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): 1.00 1.00 0.93 2/54 5690
Raw data (stat): 5690 (runsolver) R 5689 31399 31398 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 968449845 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 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 5690
Raw data (stat): 5690 (pb2sat-v2) R 5689 31399 31398 0 -1 0 28577 0 0 0 943 56 0 0 25 0 1 0 968449845 88768512 17467 4294967295 134512640 135730672 3221224576 3221203832 135285983 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21672 17467 301 301 0 21371 0
vsize: 86688
[startup+20.0011 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 5690
Raw data (stat): 5690 (pb2sat-v2) R 5689 31399 31398 0 -1 0 52682 0 0 0 1898 100 0 0 25 0 1 0 968449845 164139008 30370 4294967295 134512640 135730672 3221224576 3221196256 134546419 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 40073 30372 301 301 0 39772 0
vsize: 160292
[startup+30.0016 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 5690
Raw data (stat): 5690 (pb2sat-v2) R 5689 31399 31398 0 -1 0 77269 0 0 0 2857 142 0 0 25 0 1 0 968449845 224763904 45046 4294967295 134512640 135730672 3221224576 3221221024 135282197 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 54874 45046 301 301 0 54573 0
vsize: 219496
[startup+40.0011 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 5690
Raw data (stat): 5690 (pb2sat-v2) R 5689 31399 31398 0 -1 0 100291 0 0 0 3805 194 0 0 25 0 1 0 968449845 308748288 55582 4294967295 134512640 135730672 3221224576 3221083340 135291150 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 75378 55582 301 301 0 75077 0
vsize: 301512
[startup+50.0022 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 5690
Raw data (stat): 5690 (pb2sat-v2) R 5689 31399 31398 0 -1 0 124451 0 0 0 4760 239 0 0 25 0 1 0 968449845 484020224 79330 4294967295 134512640 135730672 3221224576 3221085008 134775432 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 118169 79331 301 301 0 117868 0
vsize: 472676
[startup+60.0016 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 5690
Raw data (stat): 5690 (pb2sat-v2) R 5689 31399 31398 0 -1 0 159220 0 0 0 5695 304 0 0 25 0 1 0 968449845 643907584 94696 4294967295 134512640 135730672 3221224576 3221088288 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 157204 94700 301 301 0 156903 0
vsize: 628816
[startup+70.0023 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 5690
Raw data (stat): 5690 (pb2sat-v2) R 5689 31399 31398 0 -1 0 189363 0 0 0 6634 365 0 0 25 0 1 0 968449845 577875968 100084 4294967295 134512640 135730672 3221224576 3221095584 134770715 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 141083 100084 301 301 0 140782 0
vsize: 564332
[startup+80.0033 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 5690
Raw data (stat): 5690 (pb2sat-v2) R 5689 31399 31398 0 -1 0 209889 0 0 0 7591 409 0 0 25 0 1 0 968449845 607752192 120368 4294967295 134512640 135730672 3221224576 3221105880 134787727 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 148377 120369 301 301 0 148076 0
vsize: 593508
[startup+90.0027 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 5690
Raw data (stat): 5690 (pb2sat-v2) R 5689 31399 31398 0 -1 0 230365 0 0 0 8552 448 0 0 25 0 1 0 968449845 637489152 140603 4294967295 134512640 135730672 3221224576 3221121984 134786288 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 155637 140604 301 301 0 155336 0
vsize: 622548
[startup+100.002 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 5690
Raw data (stat): 5690 (pb2sat-v2) R 5689 31399 31398 0 -1 0 246825 0 0 0 9519 481 0 0 25 0 1 0 968449845 711749632 156869 4294967295 134512640 135730672 3221224576 3221123448 135284216 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 173767 156869 301 301 0 173466 0
vsize: 695068
[startup+110.004 s]
Raw data (loadavg): 1.00 1.00 0.93 2/54 5690
Raw data (stat): 5690 (pb2sat-v2) R 5689 31399 31398 0 -1 4 250671 0 0 0 10483 516 0 0 25 0 1 0 968449845 0 0 4294967295 0 0 0 0 0 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 0 0 0 0 0 0 0
vsize: 0
[startup+110.069 s]
Raw data (loadavg): 1.00 1.00 0.93 1/53 5690
Raw data (stat): 5690 (pb2sat-v2) R 5689 31399 31398 0 -1 4 250671 0 0 0 10483 516 0 0 25 0 1 0 968449845 0 0 4294967295 0 0 0 0 0 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 0 0 0 0 0 0 0
vsize: 0

Child status: 1
Real time (s): 110.069
CPU time (s): 110.065
CPU user time (s): 104.837
CPU system time (s): 5.22821
CPU usage (%): 99.9969
Max. virtual memory (Kb): 695068
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####