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-mas74.opb
MD5SUM6a0bff14a7f6c8e613cddf35e20a182f
Bench Categoryoptimization, big integers (OPTBIGINT)
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 2147483647
Optimality of the best value was proved NO
Number of terms in the objective function 240
Biggest coefficient in the objective function 1934281311383406679529881600000
Number of bits for the biggest coefficient in the objective function 101
Sum of the numbers in the objective function 3868562622766813359059763200000
Number of bits of the sum of numbers in the objective function 102
Biggest number in a constraint 1208925819614629174706176000000000
Number of bits of the biggest number in a constraint 110
Biggest sum of numbers in a constraint 2417851639229258349412352000000000
Number of bits of the biggest sum of numbers111
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1217.78
Number of variables240
Total number of constraints164
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)151
Number of constraints which are nor clauses,nor cardinality constraints13
Minimum length of a constraint1
Maximum length of a constraint239

Trace number 31910

#### BEGIN LAUNCHER DATA ####
LAUNCH ON wulflinc27 THE 2005-05-27 07:03:29 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=23331 boxname=wulflinc27 idbench=975 idsolver=16 numberseed=0
MD5SUM SOLVER: 
MD5SUM BENCH:  6a0bff14a7f6c8e613cddf35e20a182f  /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-mas74.opb
REAL COMMAND:  minisat+_script -cb -gs /oldhome/oroussel/tmp/wulflinc27/normalized-mps-v2-20-10-mas74.opb
IDLAUNCH: 23331
/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 6
model		: 7
model name	: Pentium III (Katmai)
stepping	: 3
cpu MHz		: 451.169
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	: 3
cpu MHz		: 451.169
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:        851400 kB
Buffers:         33264 kB
Cached:         129184 kB
SwapCached:        684 kB
Active:          48652 kB
Inactive:       115888 kB
HighTotal:      131008 kB
HighFree:        11340 kB
LowTotal:       903652 kB
LowFree:        840060 kB
SwapTotal:     2097892 kB
SwapFree:      2096360 kB
Dirty:              28 kB
Writeback:           0 kB
Mapped:           5092 kB
Slab:            13012 kB
Committed_AS:    63600 kB
PageTables:        316 kB
VmallocTotal:   114680 kB
VmallocUsed:      1368 kB
VmallocChunk:   113252 kB
JOB ENDED THE 2005-05-27 07:07:50 (client local time) WITH STATUS 139 IN 249.042 SECONDS
stats: 23331 7 249.042 139
#### END LAUNCHER DATA ####
#### BEGIN SOLVER DATA ####
c Parsing PB file...
c PARSE ERROR! [line 155] Integer overflow. Use BigNum-version.
c OK -- Running BigNum-version instead...
/oldhome/oroussel/solvers/minisat+_script: line 16: 30687 Segmentation fault      $XDIR/minisat+_bignum_static* "$@"
#### 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
Raw data (loadavg): 0.93 0.98 0.91 2/54 30682
Raw data (stat): 30682 (runsolver) R 30681 3394 3393 0 -1 64 4 0 0 0 0 0 0 0 19 0 1 0 854207271 1052672 99 4294967295 134512640 135381576 3221224464 3221219672 135158418 0 2147483391 7 90112 0 0 0 17 0 0 0
Raw data (statm): 257 99 215 215 0 42 0
vsize: 1028
[startup+10.0007 s]
Raw data (loadavg): 0.94 0.98 0.91 2/55 30687
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+20.002 s]
Raw data (loadavg): 0.95 0.98 0.91 2/55 30687
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+30.0027 s]
Raw data (loadavg): 0.96 0.98 0.91 2/55 30687
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+40.0031 s]
Raw data (loadavg): 0.96 0.98 0.91 2/55 30687
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+50.0044 s]
Raw data (loadavg): 0.97 0.98 0.91 2/55 30687
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+60.0085 s]
Raw data (loadavg): 0.97 0.98 0.91 2/55 30687
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+70.0136 s]
Raw data (loadavg): 0.98 0.98 0.91 2/55 30687
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+80.0138 s]
Raw data (loadavg): 0.98 0.98 0.91 2/55 30687
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+90.0146 s]
Raw data (loadavg): 0.98 0.98 0.91 2/55 30687
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+100.014 s]
Raw data (loadavg): 0.98 0.98 0.91 2/55 30687
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+110.015 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30687
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+120.016 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30687
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+130.015 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+140.029 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+150.043 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+160.045 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+170.045 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+180.044 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+190.046 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+200.046 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+210.046 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+220.063 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+230.07 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+240.086 s]
Raw data (loadavg): 0.99 0.98 0.91 1/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+250.086 s]
Raw data (loadavg): 0.99 0.98 0.91 2/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+260.087 s]
Raw data (loadavg): 1.07 1.00 0.92 2/55 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 2128
[startup+261.063 s]
Raw data (loadavg): 1.07 1.00 0.92 1/53 30689
Raw data (stat): 30682 (minisat+_script) S 30681 3394 3393 0 -1 0 300 339 0 0 0 0 0 0 20 0 1 0 854207271 2179072 234 4294967295 134512640 135087896 3221224528 3221223416 1074634510 0 65536 5 65538 3222414538 0 0 17 1 0 0
Raw data (statm): 532 234 485 147 0 385 0
vsize: 0

Child status: 139
Real time (s): 261.063
CPU time (s): 249.042
CPU user time (s): 241.952
CPU system time (s): 7.08992
CPU usage (%): 95.3953
Max. virtual memory (Kb): 2128
#### END WATCHER DATA ####
#### BEGIN VERIFIER DATA ####
ERROR: no interpretation found !
#### END VERIFIER DATA ####