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 42478 

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc5 THE 2005-06-16 08:47:21 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=25698 boxname=wulflinc5 idbench=998 idsolver=18 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  d2b612d978c6eb050af622d4cf2ae598  /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-rd-rplusc-21.opb
REAL COMMAND:  pb2sat-v2 /oldhome/oroussel/tmp/wulflinc5/normalized-mps-v2-20-10-rd-rplusc-21.opb
IDLAUNCH: 25698
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 2
cpu MHz		: 451.007
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		: 451.007
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:        252064 kB
Buffers:         34228 kB
Cached:         724292 kB
SwapCached:        700 kB
Active:         290604 kB
Inactive:       470060 kB
HighTotal:      131008 kB
HighFree:          252 kB
LowTotal:       903652 kB
LowFree:        251812 kB
SwapTotal:     2097136 kB
SwapFree:      2095508 kB
Dirty:               4 kB
Writeback:           0 kB
Mapped:           5156 kB
Slab:            16232 kB
Committed_AS:    63716 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1364 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-06-16 08:49:06 (client local time) WITH STATUS 1 IN 99.5539 SECONDS
stats: 25698 7 99.5539 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 0.98 0.93 2/54 11249
Raw data (stat): 11249 (runsolver) R 11248 7266 7265 0 -1 64 8 0 0 0 0 0 0 0 19 0 1 0 969438504 884736 94 4294967295 134512640 135332820 3221224448 3221219628 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+10.0008 s]
Raw data (loadavg): 1.00 0.98 0.93 2/54 11249
Raw data (stat): 11249 (pb2sat-v2) R 11248 7266 7265 0 -1 0 28915 0 0 0 939 60 0 0 25 0 1 0 969438504 89980928 17949 4294967295 134512640 135730672 3221224576 3221186064 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 21968 17949 301 301 0 21667 0
vsize: 87872
[startup+20.0019 s]
Raw data (loadavg): 1.00 0.98 0.93 2/54 11249
Raw data (stat): 11249 (pb2sat-v2) R 11248 7266 7265 0 -1 0 57035 0 0 0 1879 120 0 0 25 0 1 0 969438504 177549312 35083 4294967295 134512640 135730672 3221224576 3221188384 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 43347 35083 301 301 0 43046 0
vsize: 173388
[startup+30.0027 s]
Raw data (loadavg): 1.00 0.98 0.93 2/54 11249
Raw data (stat): 11249 (pb2sat-v2) R 11248 7266 7265 0 -1 0 85162 0 0 0 2825 174 0 0 25 0 1 0 969438504 340709376 52946 4294967295 134512640 135730672 3221224576 3221190368 134788521 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 83181 52946 301 301 0 82880 0
vsize: 332724
[startup+40.003 s]
Raw data (loadavg): 1.00 0.98 0.93 2/54 11249
Raw data (stat): 11249 (pb2sat-v2) R 11248 7266 7265 0 -1 0 113263 0 0 0 3769 231 0 0 25 0 1 0 969438504 351096832 68521 4294967295 134512640 135730672 3221224576 3221187456 134546494 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 85717 68521 301 301 0 85416 0
vsize: 342868
[startup+50.0027 s]
Raw data (loadavg): 1.00 0.98 0.93 2/54 11249
Raw data (stat): 11249 (pb2sat-v2) R 11248 7266 7265 0 -1 0 150928 0 0 0 4696 303 0 0 25 0 1 0 969438504 467091456 86197 4294967295 134512640 135730672 3221224576 3221187456 134546483 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 114036 86197 301 301 0 113735 0
vsize: 456144
[startup+60.0029 s]
Raw data (loadavg): 1.00 0.98 0.93 2/54 11249
Raw data (stat): 11249 (pb2sat-v2) R 11248 7266 7265 0 -1 0 165356 0 0 0 5667 332 0 0 25 0 1 0 969438504 475471872 100356 4294967295 134512640 135730672 3221224576 3221188812 134608004 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 116082 100356 301 301 0 115781 0
vsize: 464328
[startup+70.0023 s]
Raw data (loadavg): 1.00 0.98 0.93 2/54 11249
Raw data (stat): 11249 (pb2sat-v2) R 11248 7266 7265 0 -1 0 206907 0 0 0 6581 418 0 0 25 0 1 0 969438504 602357760 117100 4294967295 134512640 135730672 3221224576 3221189184 135288373 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 147060 117100 301 301 0 146759 0
vsize: 588240
[startup+80.003 s]
Raw data (loadavg): 1.00 0.98 0.93 2/54 11249
Raw data (stat): 11249 (pb2sat-v2) R 11248 7266 7265 0 -1 0 223762 0 0 0 7550 450 0 0 25 0 1 0 969438504 662134784 133728 4294967295 134512640 135730672 3221224576 3221188324 135292986 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 161654 133728 301 301 0 161353 0
vsize: 646616
[startup+90.0033 s]
Raw data (loadavg): 1.00 0.98 0.93 2/54 11249
Raw data (stat): 11249 (pb2sat-v2) R 11248 7266 7265 0 -1 0 243575 0 0 0 8512 488 0 0 25 0 1 0 969438504 702734336 153290 4294967295 134512640 135730672 3221224576 3221222704 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171566 153290 301 301 0 171265 0
vsize: 686264
[startup+99.5528 s]
Raw data (loadavg): 1.00 0.98 0.93 1/53 11249
Raw data (stat): 11249 (pb2sat-v2) R 11248 7266 7265 0 -1 0 243575 0 0 0 8512 488 0 0 25 0 1 0 969438504 702734336 153290 4294967295 134512640 135730672 3221224576 3221222704 135284078 0 0 7 16384 0 0 0 17 0 0 0
Raw data (statm): 171566 153290 301 301 0 171265 0
vsize: 0

Child status: 1
Real time (s): 99.5524
CPU time (s): 99.5539
CPU user time (s): 94.3487
CPU system time (s): 5.20521
CPU usage (%): 100.001
Max. virtual memory (Kb): 686264
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####