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/miplib3/normalized-mps-v2-20-10-rout.opb
MD5SUM76f802a1f3708b934101fc21122cc5bf
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 26904326400
Number of bits of the biggest number in a constraint 35
Biggest sum of numbers in a constraint 81230087655
Number of bits of the biggest sum of numbers37
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.250961
Number of variables7561
Total number of constraints606
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)314
Number of constraints which are nor clauses,nor cardinality constraints292
Minimum length of a constraint1
Maximum length of a constraint917

Trace number 42546 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc6 THE 2005-06-16 10:26:56 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25767 boxname=wulflinc6 idbench=1067 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  76f802a1f3708b934101fc21122cc5bf  /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-rout.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc6/normalized-mps-v2-20-10-rout.opb
IDLAUNCH: 25767
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.042
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		: 451.042
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:        677168 kB
Buffers:         33784 kB
Cached:         300972 kB
SwapCached:       1028 kB
Active:          40596 kB
Inactive:       296348 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        676916 kB
SwapTotal:     2097136 kB
SwapFree:      2095200 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            14876 kB
Committed_AS:    63844 kB
PageTables:        320 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 10:28:50 (client local time) WITH STATUS 1 IN 113.723 SECONDS
stats: 25767 7 113.723 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 1/54 18765
Raw data (stat): 18765 (runsolver) R 18764 25568 25567 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 970034606 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+9.9999 s]
Raw data (loadavg): 0.93 0.95 0.91 2/54 18765
Raw data (stat): 18765 (pb2sat-v2) R 18764 25568 25567 0 -1 0 29334 0 0 0 937 61 0 0 25 0 1 0 970034606 90050560 18184 4294967295 134512640 135730672 3221224576 3221063536 134770700 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 21985 18186 301 301 0 21684 0
vsize: 87940
[startup+20.0003 s]
Raw data (loadavg): 0.94 0.96 0.91 2/54 18765
Raw data (stat): 18765 (pb2sat-v2) R 18764 25568 25567 0 -1 0 57437 0 0 0 1880 119 0 0 25 0 1 0 970034606 176586752 35065 4294967295 134512640 135730672 3221224576 3221063952 134786278 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 43112 35065 301 301 0 42811 0
vsize: 172448
[startup+30.0006 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 18765
Raw data (stat): 18765 (pb2sat-v2) R 18764 25568 25567 0 -1 0 95630 0 0 0 2801 199 0 0 25 0 1 0 970034606 294326272 51068 4294967295 134512640 135730672 3221224576 3221141088 134606749 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 71857 51068 301 301 0 71556 0
vsize: 287428
[startup+40.0003 s]
Raw data (loadavg): 0.95 0.96 0.91 2/54 18765
Raw data (stat): 18765 (pb2sat-v2) R 18764 25568 25567 0 -1 0 111644 0 0 0 3771 228 0 0 25 0 1 0 970034606 345587712 66868 4294967295 134512640 135730672 3221224576 3221084040 134787727 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 84372 66868 301 301 0 84071 0
vsize: 337488
[startup+50.0005 s]
Raw data (loadavg): 0.96 0.96 0.91 2/54 18765
Raw data (stat): 18765 (pb2sat-v2) R 18764 25568 25567 0 -1 0 150786 0 0 0 4699 302 0 0 25 0 1 0 970034606 547676160 105005 4294967295 134512640 135730672 3221224576 3221102408 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 133710 105008 301 301 0 133409 0
vsize: 534840
[startup+60 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 18765
Raw data (stat): 18765 (pb2sat-v2) R 18764 25568 25567 0 -1 0 181918 0 0 0 5638 363 0 0 25 0 1 0 970034606 690077696 117336 4294967295 134512640 135730672 3221224576 3221143008 134788521 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 168476 117340 301 301 0 168175 0
vsize: 673904
[startup+69.9998 s]
Raw data (loadavg): 0.97 0.96 0.91 2/54 18765
Raw data (stat): 18765 (pb2sat-v2) R 18764 25568 25567 0 -1 0 200254 0 0 0 6598 402 0 0 25 0 1 0 970034606 622964736 110905 4294967295 134512640 135730672 3221224576 3221078964 134550329 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 152091 110905 301 301 0 151790 0
vsize: 608364
[startup+80.0002 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 18765
Raw data (stat): 18765 (pb2sat-v2) R 18764 25568 25567 0 -1 0 218991 0 0 0 7561 440 0 0 25 0 1 0 970034606 649834496 129412 4294967295 134512640 135730672 3221224576 3221087152 134786302 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 158651 129412 301 301 0 158350 0
vsize: 634604
[startup+90.0004 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 18765
Raw data (stat): 18765 (pb2sat-v2) R 18764 25568 25567 0 -1 0 237883 0 0 0 8525 476 0 0 25 0 1 0 970034606 678547456 148088 4294967295 134512640 135730672 3221224576 3221067176 135285983 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 165661 148089 301 301 0 165360 0
vsize: 662644
[startup+100 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 18765
Raw data (stat): 18765 (pb2sat-v2) R 18764 25568 25567 0 -1 0 253716 0 0 0 9495 506 0 0 25 0 1 0 970034606 752541696 163740 4294967295 134512640 135730672 3221224576 3221084288 134784086 0 0 7 16384 0 0 0 17 1 0 0
Raw data (statm): 183726 163740 301 301 0 183425 0
vsize: 734904
[startup+110 s]
Raw data (loadavg): 0.98 0.96 0.91 2/54 18765
Raw data (stat): 18765 (pb2sat-v2) R 18764 25568 25567 0 -1 0 258761 0 0 0 10472 529 0 0 25 0 1 0 970034606 400302080 97139 4294967295 134512640 135730672 3221224576 3221222764 135281209 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97730 97139 301 301 0 97429 0
vsize: 390920
[startup+113.702 s]
Raw data (loadavg): 0.98 0.96 0.91 1/53 18765
Raw data (stat): 18765 (pb2sat-v2) R 18764 25568 25567 0 -1 0 258761 0 0 0 10472 529 0 0 25 0 1 0 970034606 400302080 97139 4294967295 134512640 135730672 3221224576 3221222764 135281209 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 97730 97139 301 301 0 97429 0
vsize: 0

Child status: 1
Real time (s): 113.701
CPU time (s): 113.723
CPU user time (s): 108.223
CPU system time (s): 5.50016
CPU usage (%): 100.019
Max. virtual memory (Kb): 734904
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####