Trace number 361098

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 NameAnswerCPU timeWall clock time
wildcat-skc 2007-03-21SAT 0.021996 0.0246331

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/
FPGA_SAT05/normalized-fpga30_29_sat_pb.cnf.cr.opb
MD5SUMc1cdfd7e4f6debefea2730ce19b0db2d
Bench CategorySATUNSAT-SMALLINT-LIN (no optimisation, small integers, linear constraints)
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 benchmark0.021996
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables1305
Total number of constraints958
Number of constraints which are clauses899
Number of constraints which are cardinality constraints (but not clauses)59
Number of constraints which are nor clauses,nor cardinality constraints0
Minimum length of a constraint15
Maximum length of a constraint30
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 31
Number of bits of the biggest sum of numbers5
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 
0.00/0.00	c wildcat-skc (VERSION 0.8.0-lite-skc-devel)
0.00/0.00	c Developed by L. Liu  and M. Truszczynski 
0.00/0.00	c Last built on Sun 18 Mar 2007 03:03:20 PM EDT
0.00/0.00	c 
0.00/0.00	c /tmp/evaluation/361098-1176979014/wildcat-skc /tmp/evaluation/361098-1176979014/instance-361098-1176979014.opb 602899493 
0.00/0.00	c =================================== BEGIN ===================================
0.00/0.00	c 
0.00/0.00	c Random Number Seed: 602899493
0.00/0.00	c Noise: 0.1 (10 : 100) 
0.00/0.02	c Starting searching:
0.00/0.02	c phase 1 ... vc 
0.00/0.02	s SATISFIABLE
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0.00/0.02	v -x1301 -x1302 -x1303 -x1304 -x1305
0.00/0.02	c Total Number of Positive Atoms : 58
0.00/0.02	c 
0.00/0.02	c During searching:         0.005245 seconds elapsed.
0.00/0.02	c CPU time spent:           0 seconds.
0.00/0.02	c 
0.00/0.02	c =================================== END =====================================
0.00/0.02	c

Verifier Data (download as text)

OK	0

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node21/watcher-361098-1176979014 -o ROOT/results/node21/solver-361098-1176979014 -C 1800 -W 3600 -M 1800 --output-limit 1,15 /tmp/evaluation/361098-1176979014/wildcat-skc /tmp/evaluation/361098-1176979014/instance-361098-1176979014.opb 602899493 

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: 0.91 0.95 0.90 3/77 21424
/proc/meminfo: memFree=1285424/2055920 swapFree=4160292/4192956
[pid=21424] ppid=21422 vsize=6236 CPUtime=0
/proc/21424/stat : 21424 (wildcat-skc) R 21422 21424 20960 0 -1 4194304 202 0 0 0 0 0 0 0 18 0 1 0 145818687 6385664 186 18446744073709551615 134512640 135438881 4294956656 18446744073709551615 135002146 0 0 4096 16386 0 0 0 17 1 0 0
/proc/21424/statm: 1559 186 106 226 0 1330 0

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

Child status: 0
Real time (s): 0.0246331
CPU time (s): 0.021996
CPU user time (s): 0.018997
CPU system time (s): 0.002999
CPU usage (%): 89.2945
Max. virtual memory (cumulated for all children) (KiB): 0

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.018997
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 508
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= 0

runsolver used 0.003999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node21 on Thu Apr 19 10:36:54 UTC 2007

IDJOB= 361098
IDBENCH= 1418
IDSOLVER= 162
FILE ID= node21/361098-1176979014

PBS_JOBID= 4630373

Free space on /tmp= 66389 MiB

SOLVER NAME= wildcat-skc 2007-03-21
BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/SATUNSAT-SMALLINT/submitted-PB05/aloul/FPGA_SAT05/normalized-fpga30_29_sat_pb.cnf.cr.opb
COMMAND LINE= /tmp/evaluation/361098-1176979014/wildcat-skc /tmp/evaluation/361098-1176979014/instance-361098-1176979014.opb 602899493
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-361098-1176979014 -o ROOT/results/node21/solver-361098-1176979014 -C 1800 -W 3600 -M 1800 --output-limit 1,15  /tmp/evaluation/361098-1176979014/wildcat-skc /tmp/evaluation/361098-1176979014/instance-361098-1176979014.opb 602899493

META MD5SUM SOLVER= 05d21ee76b90579709a9929b8e99937a
MD5SUM BENCH=  c1cdfd7e4f6debefea2730ce19b0db2d

RANDOM SEED= 602899493

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node21.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		: 3000.232
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		: 3000.232
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:       1285896 kB
Buffers:         47212 kB
Cached:         630892 kB
SwapCached:      11144 kB
Active:         196564 kB
Inactive:       508416 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1285896 kB
SwapTotal:     4192956 kB
SwapFree:      4160292 kB
Dirty:            2516 kB
Writeback:           0 kB
Mapped:          30308 kB
Slab:            50552 kB
Committed_AS:  1068368 kB
PageTables:       1788 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= 66389 MiB

End job on node21 on Thu Apr 19 10:36:54 UTC 2007