Trace number 2669830

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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 NameAnswerCPU timeWall clock time
PB-wave alpha 2SAT 0.030995 0.0308999

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/
FPGA_SAT05/normalized-fpga35_34_sat_pb.cnf.cr.opb
MD5SUM0d2d0c8fcbbf85b522a59ecd3e43cd8e
Bench CategoryDEC-SMALLINT (no optimisation, small integers)
Best result obtained on this benchmarkSAT
Best value of the objective obtained on this benchmark0
Best CPU time to get the best result obtained on this benchmark0.030995
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables1785
Total number of constraints1293
Number of constraints which are clauses1224
Number of constraints which are cardinality constraints (but not clauses)69
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint17
Maximum length of a constraint35
Number of terms in the objective function 0
Biggest coefficient in the objective function 0
Number of bits for the biggest coefficient in the objective function 0
Sum of the numbers in the objective function 0
Number of bits of the sum of numbers in the objective function 0
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 36
Number of bits of the biggest sum of numbers6
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Solver Data

0.00/0.02	c PB-wave - v2
0.00/0.02	c command line = ./PB-wave
0.00/0.02	c seed = 12061837
0.00/0.02	c cutoff = 1000000
0.00/0.02	c tries = 1000000
0.00/0.02	c heuristic = c best, noise 50 / 100
0.00/0.02	#var 1785 #con 1293
0.00/0.02	mode is SAT
0.00/0.02	c tail starts after flip = 5355
0.00/0.02	c numatom = 1785, numclause = 1293, numliterals = 24395
0.00/0.02	c wff read in
0.00/0.02	c 
0.00/0.02	c     lowest     final       avg     noise     noise     total                 avg        mean        mean
0.00/0.02	c     #unsat    #unsat     noise   std dev     ratio     flips              length       flips       flips
0.00/0.02	c       this      this      this      this      this      this   success   success       until         std
0.00/0.02	c        try       try       try       try       try       try      rate     tries      assign         dev
0.00/0.02	c
0.00/0.03	s SATISFIABLE
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Verifier Data

OK	0

Watcher Data

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2669830-1276609804/watcher-2669830-1276609804 -o /tmp/evaluation-result-2669830-1276609804/solver-2669830-1276609804 -C 1800 -W 2000 -M 1800 run HOME/instance-2669830-1276609804.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): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/106 10128
/proc/meminfo: memFree=1835928/2059040 swapFree=4135684/4192956
[pid=10128] ppid=10126 vsize=8700 CPUtime=0
/proc/10128/stat : 10128 (run) S 10126 10128 9789 0 -1 4202496 360 0 0 0 0 0 0 0 20 0 1 0 36584314 8908800 244 1992294400 4194304 4922060 140735193473040 18446744073709551615 216120532101 0 65536 4100 65538 18446744071562232103 0 0 17 1 0 0 0
/proc/10128/statm: 2175 244 204 178 0 68 0

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

Child status: 0
Real time (s): 0.0308999
CPU time (s): 0.030995
CPU user time (s): 0.025996
CPU system time (s): 0.004999
CPU usage (%): 100.308
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.025996
system time used= 0.004999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1199
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= 3
involuntary context switches= 3

runsolver used 0.004999 second user time and 0.007998 second system time

The end

Launcher Data

Begin job on node002 at 2010-06-15 15:50:04
IDJOB=2669830
IDBENCH=1422
IDSOLVER=1171
FILE ID=node002/2669830-1276609804
PBS_JOBID= 11172283
Free space on /tmp= 62572 MiB

SOLVER NAME= PB-wave alpha 2
BENCH NAME= PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/FPGA_SAT05/normalized-fpga35_34_sat_pb.cnf.cr.opb
COMMAND LINE= run BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2669830-1276609804/watcher-2669830-1276609804 -o /tmp/evaluation-result-2669830-1276609804/solver-2669830-1276609804 -C 1800 -W 2000 -M 1800  run HOME/instance-2669830-1276609804.opb

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 0d2d0c8fcbbf85b522a59ecd3e43cd8e
RANDOM SEED=998933277

node002.alineos.net Linux 2.6.18-164.el5 #1 SMP Thu Sep 3 03:28:30 EDT 2009

/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		: 3000.242
cache size	: 2048 KB
physical id	: 0
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 0
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 6000.48
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		: 3000.242
cache size	: 2048 KB
physical id	: 3
siblings	: 1
core id		: 0
cpu cores	: 1
apicid		: 6
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 constant_tsc pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5599.36
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2059040 kB
MemFree:       1836448 kB
Buffers:         27776 kB
Cached:         102828 kB
SwapCached:      10752 kB
Active:          81084 kB
Inactive:        62856 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2059040 kB
LowFree:       1836448 kB
SwapTotal:     4192956 kB
SwapFree:      4135684 kB
Dirty:            1140 kB
Writeback:           4 kB
AnonPages:       11492 kB
Mapped:           9340 kB
Slab:            56904 kB
PageTables:       4004 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   5222476 kB
Committed_AS:   182204 kB
VmallocTotal: 34359738367 kB
VmallocUsed:    264948 kB
VmallocChunk: 34359471699 kB
HugePages_Total:     0
HugePages_Free:      0
HugePages_Rsvd:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 62572 MiB
End job on node002 at 2010-06-15 15:50:04