Trace number 365557

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
minisat+ 1.14UNSAT 0.266958 0.268026

General information on the benchmark

Namenormalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/
lp/data/normalized-mps-v2-20-10-scagr7.opb
MD5SUM69d6c62daf59435a58a3bb454faebc4a
Bench CategoryOPT-BIGINT (optimisation, big 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 benchmark0.046992
Has Objective FunctionYES
SatisfiableNO
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved
Number of variables4200
Total number of constraints129
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 constraints129
Minimum length of a constraint30
Maximum length of a constraint300
Number of terms in the objective function 3990
Biggest coefficient in the objective function 35540854374400
Number of bits for the biggest coefficient in the objective function 46
Sum of the numbers in the objective function 1307201212607598
Number of bits of the sum of numbers in the objective function 51
Biggest number in a constraint 35540854374400
Number of bits of the biggest number in a constraint 46
Biggest sum of numbers in a constraint 1307201212607598
Number of bits of the biggest sum of numbers51
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)

0.00/0.00	c Parsing PB file...
0.19/0.23	c Converting 213 PB-constraints to clauses...
0.19/0.24	c   -- Unit propagations: ppppppppppppppppp  -- Detecting intervals from adjacent constraints: #############################################################################
0.19/0.26	c   -- Clauses(.)/Splits(s): s
0.19/0.26	s UNSATISFIABLE
0.19/0.26	c _______________________________________________________________________________
0.19/0.26	c 
0.19/0.26	c restarts              : 0
0.19/0.26	c conflicts             : 0              (0 /sec)
0.19/0.26	c decisions             : 0              (0 /sec)
0.19/0.26	c propagations          : 0              (0 /sec)
0.19/0.26	c inspects              : 0              (0 /sec)
0.19/0.26	c CPU time              : 0.25896 s
0.19/0.26	c _______________________________________________________________________________

Verifier Data (download as text)

ERROR: no interpretation found !

Conversion Script Data (download as text)

/tmp/evaluation/365557-1177051199/instance-365557-1177051199.opb is already a linear file

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node25/watcher-365557-1177051199 -o ROOT/results/node25/solver-365557-1177051199 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/365557-1177051199/minisat+ /tmp/evaluation/365557-1177051199/instance-365557-1177051199.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.99 0.99 3/64 3779
/proc/meminfo: memFree=1710744/2055920 swapFree=4182972/4192956
[pid=3779] ppid=3777 vsize=1180 CPUtime=0
/proc/3779/stat : 3779 (minisat+) R 3777 3779 3132 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 153036986 1208320 123 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135031278 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3779/statm: 295 123 67 215 0 77 0

[startup+0.0391469 s]
/proc/loadavg: 0.99 0.99 0.99 3/64 3779
/proc/meminfo: memFree=1710744/2055920 swapFree=4182972/4192956
[pid=3779] ppid=3777 vsize=1828 CPUtime=0.03
/proc/3779/stat : 3779 (minisat+) R 3777 3779 3132 0 -1 4194304 313 0 0 0 3 0 0 0 18 0 1 0 153036986 1871872 298 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 134624571 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3779/statm: 457 298 75 215 0 239 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1828

[startup+0.101157 s]
/proc/loadavg: 0.99 0.99 0.99 3/64 3779
/proc/meminfo: memFree=1710744/2055920 swapFree=4182972/4192956
[pid=3779] ppid=3777 vsize=2128 CPUtime=0.09
/proc/3779/stat : 3779 (minisat+) R 3777 3779 3132 0 -1 4194304 374 0 0 0 9 0 0 0 18 0 1 0 153036986 2179072 359 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135007481 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3779/statm: 532 359 75 215 0 314 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2128

Solver just ended. Dumping a history of the last processes samples

[startup+0.201173 s]
/proc/loadavg: 0.99 0.99 0.99 3/64 3779
/proc/meminfo: memFree=1710744/2055920 swapFree=4182972/4192956
[pid=3779] ppid=3777 vsize=2624 CPUtime=0.19
/proc/3779/stat : 3779 (minisat+) R 3777 3779 3132 0 -1 4194304 498 0 0 0 19 0 0 0 18 0 1 0 153036986 2686976 483 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135031278 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3779/statm: 656 483 75 215 0 438 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 2624

Child status: 20
Real time (s): 0.268026
CPU time (s): 0.266958
CPU user time (s): 0.25896
CPU system time (s): 0.007998
CPU usage (%): 99.6016
Max. virtual memory (cumulated for all children) (KiB): 2624

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.25896
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 619
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 8
involuntary context switches= 2

runsolver used 0.004999 second user time and 0.004999 second system time

The end

Launcher Data (download as text)

Begin job on node25 on Fri Apr 20 06:39:59 UTC 2007

IDJOB= 365557
IDBENCH= 2436
IDSOLVER= 156
FILE ID= node25/365557-1177051199

PBS_JOBID= 4640173

Free space on /tmp= 66367 MiB

SOLVER NAME= minisat+ 1.14
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-BIGINT/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-mps-v2-20-10-scagr7.opb
COMMAND LINE= /tmp/evaluation/365557-1177051199/minisat+ /tmp/evaluation/365557-1177051199/instance-365557-1177051199.opb            
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node25/convwatcher-365557-1177051199 -o ROOT/results/node25/conversion-365557-1177051199 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/365557-1177051199/instance-365557-1177051199.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node25/watcher-365557-1177051199 -o ROOT/results/node25/solver-365557-1177051199 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/365557-1177051199/minisat+ /tmp/evaluation/365557-1177051199/instance-365557-1177051199.opb            

META MD5SUM SOLVER= e46aded85e5f265b61da9cdcce06370e
MD5SUM BENCH=  69d6c62daf59435a58a3bb454faebc4a

RANDOM SEED= 489407955

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node25.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.261
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		: 3000.261
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:       1711152 kB
Buffers:         72532 kB
Cached:         220876 kB
SwapCached:       3684 kB
Active:         174760 kB
Inactive:       129424 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1711152 kB
SwapTotal:     4192956 kB
SwapFree:      4182972 kB
Dirty:            2788 kB
Writeback:           0 kB
Mapped:          15480 kB
Slab:            26624 kB
Committed_AS:  4046448 kB
PageTables:       1472 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66367 MiB

End job on node25 on Fri Apr 20 06:39:59 UTC 2007