Trace number 45357

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 into four (or five) parts:
  1. 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 ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds, and are wall clock time (not CPU time).

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. 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.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. 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 X seconds (see the parameters in the trace). 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 X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    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.
  5. 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 provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerObjective functionCPU timeWall clock time
PB-smodels 1.31UNSAT 20.4119 18.5708

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/
ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-bnl1.opb
MD5SUM86d589e9c21b90dfd700c7c422b09b8c
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkUNSAT
Best value of the objective obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark2.75058
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables35250
Total number of constraints624
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 constraints624
Minimum length of a constraint30
Maximum length of a constraint2280
Number of terms in the objective function 29490
Biggest coefficient in the objective function 6378
Number of bits for the biggest coefficient in the objective function 13
Sum of the numbers in the objective function 548620
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262145
Number of bits of the biggest number in a constraint 19
Biggest sum of numbers in a constraint 548620
Number of bits of the biggest sum of numbers20
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data (download as text)

0.00	c Running pbsmodels-v1.31
18.56	s UNSATISFIABLE

Verifier Data (download as text)

ERROR: no interpretation found !

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes

runsolver version 3.0.1 (c) roussel@cril.univ-artois.fr

Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
command line: runsolver --timestamp -w ROOT/results/node29/watcher-45357-1149646316 -o ROOT/results/node29/solver-45357-1149646316 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user4/pbsmodels-v1.31/runpbsmodels ROOT/tmp/node29/45357-1149646316/instance-45357-1149646316.opb 928596172 ROOT/tmp/node29/45357-1149646316 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.92 0.98 0.99 3/64 3725
/proc/meminfo: memFree=1156824/2055920 swapFree=4181352/4192956
[pid=3725] ppid=3723 vsize=5356 CPUtime=0
/proc/3725/stat : 3725 (runpbsmodels) R 3723 3725 3679 0 -1 4194304 235 0 0 0 0 0 0 0 19 0 1 0 230295223 5484544 202 18446744073709551615 4194304 4889804 548682069184 18446744073709551615 221780868594 0 0 4100 65536 0 0 0 17 1 0 0
/proc/3725/statm: 1339 202 167 169 0 50 0

[startup+10.0015 s]
/proc/loadavg: 0.93 0.98 0.99 2/69 3730
/proc/meminfo: memFree=1150704/2055920 swapFree=4181352/4192956
[pid=3725] ppid=3723 vsize=5360 CPUtime=0
/proc/3725/stat : 3725 (runpbsmodels) S 3723 3725 3679 0 -1 4194304 286 0 0 0 0 0 0 0 19 0 1 0 230295223 5488640 234 18446744073709551615 4194304 4889804 548682069184 18446744073709551615 221780697924 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/3725/statm: 1340 234 195 169 0 51 0
[pid=3726] ppid=3725 vsize=12268 CPUtime=0
/proc/3726/stat : 3726 (pbsmodels-v1.31) S 3725 3725 3679 0 -1 4194304 425 0 0 0 0 0 0 0 18 0 1 0 230295223 12562432 383 18446744073709551615 4194304 4206940 548682069024 18446744073709551615 221789601684 0 0 4230 16384 18446744071563356171 0 0 17 1 0 0
/proc/3726/statm: 3067 383 293 3 0 167 0
[pid=3727] ppid=3726 vsize=5356 CPUtime=0
/proc/3727/stat : 3727 (sh) S 3726 3725 3679 0 -1 4194304 309 0 0 0 0 0 0 0 18 0 1 0 230295224 5484544 227 18446744073709551615 4194304 4889804 548682069040 18446744073709551615 221780697924 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/3727/statm: 1339 227 188 169 0 50 0
[pid=3728] ppid=3727 vsize=16376 CPUtime=9.97
/proc/3728/stat : 3728 (pb2smodels) R 3727 3725 3679 0 -1 4194304 867611 0 0 0 749 248 0 0 25 0 1 0 230295224 16769024 1418 18446744073709551615 4194304 4206940 548682069072 18446744073709551615 221780579754 0 0 4224 0 0 0 0 17 1 0 0
/proc/3728/statm: 4094 1429 317 3 0 1194 0
[pid=3729] ppid=3727 vsize=2440 CPUtime=0
/proc/3729/stat : 3729 (smodels-2.31) S 3727 3725 3679 0 -1 4194304 251 0 0 0 0 0 0 0 20 0 1 0 230295224 2498560 215 18446744073709551615 134512640 134599567 4294956656 18446744073709551615 4294960144 0 0 4096 0 18446744071563648864 0 0 17 0 0 0
/proc/3729/statm: 610 215 191 21 0 46 0
[pid=3730] ppid=3727 vsize=12268 CPUtime=0
/proc/3730/stat : 3730 (pbout.new.pl) S 3727 3725 3679 0 -1 4194304 417 0 0 0 0 0 0 0 22 0 1 0 230295224 12562432 377 18446744073709551615 4194304 4206940 548682069056 18446744073709551615 221789597794 0 0 4224 0 18446744071563648864 0 0 17 0 0 0
/proc/3730/statm: 3067 377 289 3 0 167 0
Current children cumulated CPU time (s) 9.97
Current children cumulated vsize (Kb) 41800

Child status: 0
Real time (s): 18.5708
CPU time (s): 20.4119
CPU user time (s): 17.8763
CPU system time (s): 2.53561
CPU usage (%): 109.914
Max. virtual memory (cumulated for all children) (Kb): 41800
The end

Launcher Data (download as text)

Begin job on node29 on Wed Jun  7 02:11:56 UTC 2006


FILE ID= 45357-1149646316

PBS_JOBID= 323856

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-bnl1.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user4/pbsmodels-v1.31/runpbsmodels ROOT/tmp/node29/45357-1149646316/instance-45357-1149646316.opb 928596172  ROOT/tmp/node29/45357-1149646316
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node29/watcher-45357-1149646316 -o ROOT/results/node29/solver-45357-1149646316 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user4/pbsmodels-v1.31/runpbsmodels ROOT/tmp/node29/45357-1149646316/instance-45357-1149646316.opb 928596172  ROOT/tmp/node29/45357-1149646316

MD5SUM SOLVER= 95562bc622ddb1f976359072aec5ad24 7fcd858753252b26b88f3383e979819a c732bc4c3aeda9195daa74a308a1f78e b7e54d975d35ab28450b6de5c14d303e f7da3270b2cd5190fa0cd9af9b854ca4
MD5SUM BENCH=  86d589e9c21b90dfd700c7c422b09b8c

RANDOM SEED= 928596172


/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.259
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.259
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1157032 kB
Buffers:         36540 kB
Cached:         790868 kB
SwapCached:       3348 kB
Active:         718608 kB
Inactive:       117572 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1157032 kB
SwapTotal:     4192956 kB
SwapFree:      4181352 kB
Dirty:             156 kB
Writeback:           0 kB
Mapped:          14696 kB
Slab:            48644 kB
Committed_AS:   424212 kB
PageTables:       1504 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node29 on Wed Jun  7 02:12:15 UTC 2006