Trace number 34509

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
minisat+ 1.14SAT 1.22881 1.23505

General information on the benchmark

Namenormalized-PB06/SATUNSAT-SMALLINT/reduced/submitted-PB06/
manquiho/Aardal_1/normalized-reduced-cuww2.opb
MD5SUM09374548ceda950753e4b5583689240d
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 benchmark0.001999
Has Objective FunctionNO
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function
Optimality of the best value was proved NO
Number of variables70
Total number of constraints2
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 constraints2
Minimum length of a constraint70
Maximum length of a constraint70
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 54333
Number of bits of the biggest number in a constraint 16
Biggest sum of numbers in a constraint 524319
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 Parsing PB file...
0.00	c Converting 2 PB-constraints to clauses...
0.00	c   -- Unit propagations: (none)
0.00	c   -- Detecting intervals from adjacent constraints: #
0.00	c   -- Clauses(.)/Splits(s): (none)
0.00	c ---[   0]---> Adder-cost: 740   maxlim: 54333   bits: 17/16
1.04	c ==================================[MINISAT+]==================================
1.04	c | Conflicts | Original         | Learnt                           | Progress |
1.04	c |           | Clauses Literals |     Max Clauses Literals     LPC |          |
1.04	c ==============================================================================
1.04	c |         0 |    5014    17868 |    1671       0        0     nan |  0.000 % |
1.04	c |       101 |    4998    17816 |    1838      99     1086    11.0 |  5.116 % |
1.05	c |       252 |    4998    17816 |    2021     250     2770    11.1 |  5.116 % |
1.06	c |       478 |    4998    17816 |    2224     476     6852    14.4 |  5.116 % |
1.07	c |       815 |    4998    17816 |    2446     813    14262    17.5 |  5.116 % |
1.10	c |      1321 |    4990    17790 |    2691    1318    24792    18.8 |  5.238 % |
1.15	c |      2083 |    4982    17764 |    2960    2079    46364    22.3 |  5.359 % |
1.22	c ==============================================================================
1.22	c SATISFIABLE: No goal function specified.
1.22	s SATISFIABLE
1.22	v x1 -x2 -x3 x4 -x5 -x6 x7 -x8 -x9 -x10 -x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 x23 -x24 -x25 -x26 -x27 -x28 x29
1.22	v -x30 -x31 -x32 -x33 -x34 -x35 x36 -x37 -x38 x39 -x40 -x41 x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55
1.22	v -x56 -x57 x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70
1.22	c _______________________________________________________________________________
1.22	c 
1.22	c restarts              : 7
1.22	c conflicts             : 3055           (2490 /sec)
1.22	c decisions             : 9077           (7399 /sec)
1.22	c propagations          : 0              (0 /sec)
1.22	c inspects              : 0              (0 /sec)
1.22	c CPU time              : 1.22681 s
1.22	c _______________________________________________________________________________

Verifier Data (download as text)

OK	0

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
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node55/watcher-34509-1149204735 -o ROOT/results/node55/solver-34509-1149204735 -C 1800 -M 1800 -S 64 ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node55/34509-1149204735/instance-34509-1149204735.opb 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.00 0.02 0.19 2/64 21027
/proc/meminfo: memFree=1239120/2055920 swapFree=4181444/4192956
[pid=21027] ppid=21025 vsize=1060 CPUtime=0
/proc/21027/stat : 21027 (minisat+) R 21025 21027 20981 0 -1 4194304 125 0 0 0 0 0 0 0 18 0 1 0 186141174 1085440 110 18446744073709551615 134512640 135395479 4294956672 18446744073709551615 135005802 0 0 4096 16386 0 0 0 17 1 0 0
/proc/21027/statm: 266 111 86 215 0 48 0

Child status: 10
Real time (s): 1.23505
CPU time (s): 1.22881
CPU user time (s): 1.22681
CPU system time (s): 0.001999
CPU usage (%): 99.495
Max. virtual memory (cumulated for all children) (Kb): 0

Launcher Data (download as text)

Begin job on node55 on Thu Jun  1 23:32:16 UTC 2006


FILE ID= 34509-1149204735

PBS_JOBID= 292814

BENCH NAME= ROOT/tmp/node55/34509-1149204735/instance-34509-1149204735.opb
COMMAND LINE= ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node55/34509-1149204735/instance-34509-1149204735.opb
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node55/watcher-34509-1149204735 -o ROOT/results/node55/solver-34509-1149204735 -C 1800 -M 1800 -S 64  ROOT/solvers/PB/PB06final/user7/minisat+ ROOT/tmp/node55/34509-1149204735/instance-34509-1149204735.opb

MD5SUM SOLVER= 490d1d4b9bbf010afe7f0af63a5a62db
MD5SUM BENCH=  09374548ceda950753e4b5583689240d

RANDOM SEED= 120787348


/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		: 3000.243
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		: 3000.243
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:       1239456 kB
Buffers:         38140 kB
Cached:         701744 kB
SwapCached:       3560 kB
Active:         184136 kB
Inactive:       564784 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1239456 kB
SwapTotal:     4192956 kB
SwapFree:      4181444 kB
Dirty:             144 kB
Writeback:           0 kB
Mapped:          14932 kB
Slab:            53548 kB
Committed_AS:   145668 kB
PageTables:       1396 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node55 on Thu Jun  1 23:32:17 UTC 2006