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).
    Note that some very long lines in this section may be truncated by your web browser !
  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

Namemps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-ship12l.opb
MD5SUMbdd9a8da4deb9b8348cff99945476562
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 162810
Biggest coefficient in the objective function 1511023181824000
Number of bits for the biggest coefficient in the objective function 51
Sum of the numbers in the objective function 426775792258590390
Number of bits of the sum of numbers in the objective function 59
Biggest number in a constraint 1511023181824000
Number of bits of the biggest number in a constraint 51
Biggest sum of numbers in a constraint 426775792258590390
Number of bits of the biggest sum of numbers59
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark28.5317
Number of variables162810
Total number of constraints1042
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 constraints1042
Minimum length of a constraint30
Maximum length of a constraint2250

Trace number 495

Launcher Data

LAUNCH ON wulflinc2 THE 2005-09-18 10:54:49 (client local time)
PB2005-SCRIPT v4.0 
MARKUPS: idlaunch=476 boxname=wulflinc2 idbench=476 idsolver=1 numberseed=0
MD5SUM SOLVER: 38f99674050b34630888bf623b924b59  /oldhome/oroussel/solvers/bsolo
MD5SUM BENCH:  bdd9a8da4deb9b8348cff99945476562  /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-ship12l.opb
REAL COMMAND:  bsolo /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-ship12l.opb
IDLAUNCH: 476
/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:        930544 kB
Buffers:         33820 kB
Cached:          46196 kB
SwapCached:       1040 kB
Active:          67260 kB
Inactive:        15384 kB
HighTotal:      131008 kB
HighFree:        83692 kB
LowTotal:       903652 kB
LowFree:        846852 kB
SwapTotal:     2097136 kB
SwapFree:      2095568 kB
Dirty:              24 kB
Writeback:           0 kB
Mapped:           5696 kB
Slab:            15832 kB
Committed_AS:    72360 kB
PageTables:        328 kB
VmallocTotal:   114680 kB
VmallocUsed:      1388 kB
VmallocChunk:   113256 kB
JOB ENDED THE 2005-09-18 10:56:58 (client local time) WITH STATUS 20 IN 127.725 SECONDS
stats: 476 7 127.725 20

Solver Data

c INFO: OSL Context initialized.
c BIG Int formula...
c Initial problem consists of 162810 variables and 1693 constraints.
s UNSATISFIABLE
c Exit Code: 20
c Total time: 127.515 s

Watcher Data

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1230 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGTERM then SIGKILL): 921600 Kb
Enforcing VSIZE limit: 994918400 bytes
Current StackSize limit: 67108864 bytes
Raw data (/proc/8841/stat): 8841 (bsolo) R 8840 8841 6872 0 -1 0 19 0 0 0 0 0 0 0 23 0 1 0 1782479030 438272 3 4294967295 134512640 134736556 3221224560 3221224560 1073744960 0 0 5 0 0 0 0 17 1 0 0
Raw data (/proc/8841/statm): 107 3 90 68 0 39 0
[pid=8841] vsize: 428
open syscall for file /etc/ld.so.preload
open syscall for file tls/i686/mmx/libosl.so
open syscall for file tls/i686/libosl.so
open syscall for file tls/mmx/libosl.so
open syscall for file tls/libosl.so
open syscall for file i686/mmx/libosl.so
open syscall for file i686/libosl.so
open syscall for file mmx/libosl.so
open syscall for file libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/i686/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/tls/libosl.so
open syscall for file /oldhome/oroussel/lib/i686/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/i686/libosl.so
open syscall for file /oldhome/oroussel/lib/mmx/libosl.so
open syscall for file /oldhome/oroussel/lib/libosl.so
open syscall for file tls/i686/mmx/libstdc++-libc6.2-2.so.3
open syscall for file tls/i686/libstdc++-libc6.2-2.so.3
open syscall for file tls/mmx/libstdc++-libc6.2-2.so.3
open syscall for file tls/libstdc++-libc6.2-2.so.3
open syscall for file i686/mmx/libstdc++-libc6.2-2.so.3
open syscall for file i686/libstdc++-libc6.2-2.so.3
open syscall for file mmx/libstdc++-libc6.2-2.so.3
open syscall for file libstdc++-libc6.2-2.so.3
open syscall for file /oldhome/oroussel/lib/libstdc++-libc6.2-2.so.3
open syscall for file /etc/ld.so.cache
open syscall for file /usr/lib/libstdc++-libc6.2-2.so.3
open syscall for file tls/i686/mmx/libm.so.6
open syscall for file tls/i686/libm.so.6
open syscall for file tls/mmx/libm.so.6
open syscall for file tls/libm.so.6
open syscall for file i686/mmx/libm.so.6
open syscall for file i686/libm.so.6
open syscall for file mmx/libm.so.6
open syscall for file libm.so.6
open syscall for file /oldhome/oroussel/lib/libm.so.6
open syscall for file /lib/tls/libm.so.6
open syscall for file tls/i686/mmx/libpthread.so.0
open syscall for file tls/i686/libpthread.so.0
open syscall for file tls/mmx/libpthread.so.0
open syscall for file tls/libpthread.so.0
open syscall for file i686/mmx/libpthread.so.0
open syscall for file i686/libpthread.so.0
open syscall for file mmx/libpthread.so.0
open syscall for file libpthread.so.0
open syscall for file /oldhome/oroussel/lib/libpthread.so.0
open syscall for file /lib/tls/libpthread.so.0
open syscall for file tls/i686/mmx/libc.so.6
open syscall for file tls/i686/libc.so.6
open syscall for file tls/mmx/libc.so.6
open syscall for file tls/libc.so.6
open syscall for file i686/mmx/libc.so.6
open syscall for file i686/libc.so.6
open syscall for file mmx/libc.so.6
open syscall for file libc.so.6
open syscall for file /oldhome/oroussel/lib/libc.so.6
open syscall for file /lib/tls/libc.so.6
open syscall for file tls/i686/mmx/libgcc_s.so.1
open syscall for file tls/i686/libgcc_s.so.1
open syscall for file tls/mmx/libgcc_s.so.1
open syscall for file tls/libgcc_s.so.1
open syscall for file i686/mmx/libgcc_s.so.1
open syscall for file i686/libgcc_s.so.1
open syscall for file mmx/libgcc_s.so.1
open syscall for file libgcc_s.so.1
open syscall for file /oldhome/oroussel/lib/libgcc_s.so.1
open syscall for file /lib/libgcc_s.so.1
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open syscall for file /oldhome/oroussel/.OptimizationSolutions/nodelock
open syscall for file /oldhome/oroussel/.OptimizationSolutions/nodelock
open syscall for file /oldhome/oroussel/tmp/wulflinc2/normalized-mps-v2-20-10-ship12l.opb

[startup+10.0029 s]
Raw data (loadavg): 0.96 0.95 0.91 2/56 8841
Raw data (/proc/8841/stat): 8841 (bsolo) R 8840 8841 6872 0 -1 0 48859 0 0 0 856 116 0 0 25 0 1 0 1782479030 202473472 48455 4294967295 134512640 134736556 3221224560 3221222984 1077378037 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8841/statm): 49432 48457 1116 68 0 49364 0
[pid=8841] vsize: 197728
Current children cumulated CPU time (s) 9.72
Current children cumulated vsize (Kb) 197728

[startup+20.0036 s]
Raw data (loadavg): 0.96 0.95 0.91 2/56 8841
Raw data (/proc/8841/stat): 8841 (bsolo) R 8840 8841 6872 0 -1 0 82341 0 0 0 1770 189 0 0 25 0 1 0 1782479030 334733312 80464 4294967295 134512640 134736556 3221224560 3221222444 1077244511 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8841/statm): 81722 80464 1116 68 0 81654 0
[pid=8841] vsize: 326888
Current children cumulated CPU time (s) 19.59
Current children cumulated vsize (Kb) 326888

[startup+30.0033 s]
Raw data (loadavg): 0.97 0.95 0.91 2/56 8841
Raw data (/proc/8841/stat): 8841 (bsolo) R 8840 8841 6872 0 -1 0 84294 0 0 0 2762 195 0 0 25 0 1 0 1782479030 343048192 82417 4294967295 134512640 134736556 3221224560 3221223072 134572994 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8841/statm): 83752 82417 1116 68 0 83684 0
[pid=8841] vsize: 335008
Current children cumulated CPU time (s) 29.57
Current children cumulated vsize (Kb) 335008

[startup+40.005 s]
Raw data (loadavg): 0.97 0.95 0.91 2/56 8841
Raw data (/proc/8841/stat): 8841 (bsolo) R 8840 8841 6872 0 -1 0 85759 0 0 0 3757 199 0 0 25 0 1 0 1782479030 349339648 83882 4294967295 134512640 134736556 3221224560 3221223072 134572994 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8841/statm): 85288 83882 1116 68 0 85220 0
[pid=8841] vsize: 341152
Current children cumulated CPU time (s) 39.56
Current children cumulated vsize (Kb) 341152

[startup+50.0057 s]
Raw data (loadavg): 1.06 0.97 0.91 2/56 8841
Raw data (/proc/8841/stat): 8841 (bsolo) R 8840 8841 6872 0 -1 0 86953 0 0 0 4752 202 0 0 25 0 1 0 1782479030 354390016 85076 4294967295 134512640 134736556 3221224560 3221223072 134572994 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8841/statm): 86521 85076 1116 68 0 86453 0
[pid=8841] vsize: 346084
Current children cumulated CPU time (s) 49.54
Current children cumulated vsize (Kb) 346084

[startup+60.0054 s]
Raw data (loadavg): 1.05 0.97 0.91 1/56 8841
Raw data (/proc/8841/stat): 8841 (bsolo) T 8840 8841 6872 0 -1 0 88114 0 0 0 5748 205 0 0 25 0 1 0 1782479030 359432192 86237 4294967295 134512640 134736556 3221224560 3221223096 1077757598 0 0 5 16384 3222434794 0 0 17 0 0 0
Raw data (/proc/8841/statm): 87752 86237 1116 68 0 87684 0
[pid=8841] vsize: 351008
Current children cumulated CPU time (s) 59.53
Current children cumulated vsize (Kb) 351008

[startup+70.0061 s]
Raw data (loadavg): 1.04 0.97 0.91 2/56 8841
Raw data (/proc/8841/stat): 8841 (bsolo) R 8840 8841 6872 0 -1 0 89083 0 0 0 6743 209 0 0 25 0 1 0 1782479030 363540480 87206 4294967295 134512640 134736556 3221224560 3221223088 134573013 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8841/statm): 88755 87206 1116 68 0 88687 0
[pid=8841] vsize: 355020
Current children cumulated CPU time (s) 69.52
Current children cumulated vsize (Kb) 355020

[startup+80.0058 s]
Raw data (loadavg): 1.03 0.97 0.91 2/56 8841
Raw data (/proc/8841/stat): 8841 (bsolo) R 8840 8841 6872 0 -1 0 90120 0 0 0 7740 211 0 0 25 0 1 0 1782479030 368054272 88243 4294967295 134512640 134736556 3221224560 3221223320 1077360673 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8841/statm): 89857 88243 1116 68 0 89789 0
[pid=8841] vsize: 359428
Current children cumulated CPU time (s) 79.51
Current children cumulated vsize (Kb) 359428

[startup+90.0065 s]
Raw data (loadavg): 1.03 0.97 0.91 2/56 8841
Raw data (/proc/8841/stat): 8841 (bsolo) R 8840 8841 6872 0 -1 0 91014 0 0 0 8736 214 0 0 25 0 1 0 1782479030 371871744 89137 4294967295 134512640 134736556 3221224560 3221223072 134572994 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8841/statm): 90789 89137 1116 68 0 90721 0
[pid=8841] vsize: 363156
Current children cumulated CPU time (s) 89.5
Current children cumulated vsize (Kb) 363156

[startup+100.007 s]
Raw data (loadavg): 1.02 0.97 0.91 2/56 8841
Raw data (/proc/8841/stat): 8841 (bsolo) R 8840 8841 6872 0 -1 0 91785 0 0 0 9732 217 0 0 25 0 1 0 1782479030 375152640 89908 4294967295 134512640 134736556 3221224560 3221223068 1077399562 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8841/statm): 91590 89908 1116 68 0 91522 0
[pid=8841] vsize: 366360
Current children cumulated CPU time (s) 99.49
Current children cumulated vsize (Kb) 366360

[startup+110.007 s]
Raw data (loadavg): 1.02 0.97 0.91 2/56 8841
Raw data (/proc/8841/stat): 8841 (bsolo) R 8840 8841 6872 0 -1 0 93064 0 0 0 10725 222 0 0 25 0 1 0 1782479030 380616704 91187 4294967295 134512640 134736556 3221224560 3221223072 134572994 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8841/statm): 92924 91187 1116 68 0 92856 0
[pid=8841] vsize: 371696
Current children cumulated CPU time (s) 109.47
Current children cumulated vsize (Kb) 371696

[startup+120.008 s]
Raw data (loadavg): 1.02 0.97 0.91 2/56 8841
Raw data (/proc/8841/stat): 8841 (bsolo) R 8840 8841 6872 0 -1 0 94005 0 0 0 11721 225 0 0 25 0 1 0 1782479030 384700416 92128 4294967295 134512640 134736556 3221224560 3221223136 134539935 0 0 5 16384 0 0 0 17 0 0 0
Raw data (/proc/8841/statm): 93921 92128 1116 68 0 93853 0
[pid=8841] vsize: 375684
Current children cumulated CPU time (s) 119.46
Current children cumulated vsize (Kb) 375684
One traced child (pid=8841) exited with status: 20
All traced children have exited ! Game is over.

Child status: 20
Real time (s): 128.288
CPU time (s): 127.725
CPU user time (s): 124.917
CPU system time (s): 2.80757
CPU usage (%): 99.5609
Max. virtual memory (cumulated for all children) (Kb): 375684

Verifier Data

ERROR: no interpretation found !