Trace number 310746

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
KCNFS SMPUNSAT 4.31734 2.3236

General information on the benchmark

Namerandom/2+p/p0.9/v630/
unif2p-p0.9-v630-c2280-S1501024241-13-UNSAT.cnf
MD5SUMc3f41406395e9f4a8725889bf7cf43c6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark3.98639
Satisfiable
(Un)Satisfiability was proved
Number of variables629
Number of clauses2280
Sum of the clauses size6612
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2228
Number of clauses of size 32052
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/310746-1172561596/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.00/0.00	c Input file : '/tmp/evaluation/310746-1172561596/instance-310746-1172561596.cnf'
0.00/0.00	c [#vars: 630, #clauses: 2280 , (2-3)-CNF]
0.00/0.00	c unit clauses propagate before processing (#clause: 2280)
0.00/0.00	c estimated distribution: 8 tasks
0.00/0.05	c <18960> [PID]: 18962 18963 18964 18965 18966 18967 18968
0.00/0.40	c <18960> [PID]: 18969
0.00/0.40	c real distribution: 8 tasks
0.00/0.40	c <18960> [18963: UNSAT][18965: UNSAT][18966: UNSAT][18968: UNSAT][18969: UNSAT]
3.86/1.97	c <18960> [18967: UNSAT][18964: UNSAT][18962: UNSAT]
4.24/2.32	s UNSATISFIABLE
4.24/2.32	c CPU time            : 4.280 seconds
4.24/2.32	c Elapsed Time        : 2.318 seconds
4.24/2.32	c Size of search tree : 6975 nodes
4.24/2.32	c average speed       : 1629.673 nodes/sec.
4.24/2.32

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node5/watcher-310746-1172561596 -o ROOT/results/node5/solver-310746-1172561596 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/310746-1172561596/kcnfs-smp /tmp/evaluation/310746-1172561596/instance-310746-1172561596.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.92 0.97 0.97 3/77 18960
/proc/meminfo: memFree=1660768/2055920 swapFree=4192812/4192956
[pid=18960] ppid=18958 vsize=181044 CPUtime=0
/proc/18960/stat : 18960 (kcnfs-smp) R 18958 18960 18196 0 -1 4194304 160 0 0 0 0 0 0 0 18 0 1 0 276114476 185389056 144 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/18960/statm: 45261 146 51 160 0 45099 0

[startup+0.107763 s]
/proc/loadavg: 0.92 0.97 0.97 3/77 18960
/proc/meminfo: memFree=1660768/2055920 swapFree=4192812/4192956
[pid=18960] ppid=18958 vsize=181512 CPUtime=0
/proc/18960/stat : 18960 (kcnfs-smp) R 18958 18960 18196 0 -1 4194304 422 0 0 0 0 0 0 0 24 0 1 0 276114476 185868288 248 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836899 0 0 4096 0 0 0 0 17 0 0 0
/proc/18960/statm: 45378 248 63 160 0 45216 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 181512

[startup+0.515807 s]
/proc/loadavg: 0.92 0.97 0.97 3/77 18960
/proc/meminfo: memFree=1660768/2055920 swapFree=4192812/4192956
[pid=18960] ppid=18958 vsize=181512 CPUtime=0.11
/proc/18960/stat : 18960 (kcnfs-smp) S 18958 18960 18196 0 -1 4194304 452 57 0 0 0 0 11 0 24 0 1 0 276114476 185868288 248 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/18960/statm: 45378 248 63 160 0 45216 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 181512

[startup+1.3379 s]
/proc/loadavg: 0.92 0.97 0.97 8/85 18969
/proc/meminfo: memFree=1658208/2055920 swapFree=4192812/4192956
[pid=18960] ppid=18958 vsize=181512 CPUtime=0.11
/proc/18960/stat : 18960 (kcnfs-smp) S 18958 18960 18196 0 -1 4194304 452 57 0 0 0 0 11 0 24 0 1 0 276114476 185868288 248 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/18960/statm: 45378 248 63 160 0 45216 0
[pid=18962] ppid=18960 vsize=181512 CPUtime=0.58
/proc/18962/stat : 18962 (kcnfs-smp) R 18960 18960 18196 0 -1 4194368 44 0 0 0 58 0 0 0 24 0 1 0 276114477 185868288 262 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134579685 0 0 4096 2 0 0 0 17 1 0 0
/proc/18962/statm: 45378 262 71 160 0 45216 0
[pid=18964] ppid=18960 vsize=181512 CPUtime=0.41
/proc/18964/stat : 18964 (kcnfs-smp) R 18960 18960 18196 0 -1 4194368 44 0 0 0 41 0 0 0 25 0 1 0 276114480 185868288 262 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134683120 0 0 4096 2 0 0 0 17 0 0 0
/proc/18964/statm: 45378 262 71 160 0 45216 0
[pid=18965] ppid=18960 vsize=181512 CPUtime=0.4
/proc/18965/stat : 18965 (kcnfs-smp) R 18960 18960 18196 0 -1 4194368 44 0 0 0 40 0 0 0 25 0 1 0 276114481 185868288 262 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134683195 0 0 4096 0 0 0 0 17 1 0 0
/proc/18965/statm: 45378 262 71 160 0 45216 0
[pid=18966] ppid=18960 vsize=0 CPUtime=0.35
/proc/18966/stat : 18966 (kcnfs-smp) R 18960 18960 18196 0 -1 4194372 57 0 0 0 35 0 0 0 25 0 1 0 276114482 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 2 0 0 0 17 1 0 0
/proc/18966/statm: 0 0 0 0 0 0 0
[pid=18967] ppid=18960 vsize=181512 CPUtime=0.36
/proc/18967/stat : 18967 (kcnfs-smp) R 18960 18960 18196 0 -1 4194368 44 0 0 0 36 0 0 0 25 0 1 0 276114482 185868288 262 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567534 0 0 4096 0 0 0 0 17 0 0 0
/proc/18967/statm: 45378 262 71 160 0 45216 0
[pid=18968] ppid=18960 vsize=181512 CPUtime=0.2
/proc/18968/stat : 18968 (kcnfs-smp) R 18960 18960 18196 0 -1 4194368 44 0 0 0 20 0 0 0 25 0 1 0 276114482 185868288 262 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567241 0 0 4096 2 0 0 0 17 0 0 0
/proc/18968/statm: 45378 262 71 160 0 45216 0
[pid=18969] ppid=18960 vsize=0 CPUtime=0.21
/proc/18969/stat : 18969 (kcnfs-smp) R 18960 18960 18196 0 -1 4194372 57 0 0 0 21 0 0 0 25 0 1 0 276114512 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/18969/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 2.62
Current children cumulated vsize (KiB) 1089072

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

[startup+1.64694 s]
/proc/loadavg: 0.92 0.97 0.97 8/85 18969
/proc/meminfo: memFree=1658208/2055920 swapFree=4192812/4192956
[pid=18960] ppid=18958 vsize=181512 CPUtime=0.11
/proc/18960/stat : 18960 (kcnfs-smp) S 18958 18960 18196 0 -1 4194304 452 57 0 0 0 0 11 0 24 0 1 0 276114476 185868288 248 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/18960/statm: 45378 248 63 160 0 45216 0
[pid=18962] ppid=18960 vsize=181512 CPUtime=0.74
/proc/18962/stat : 18962 (kcnfs-smp) R 18960 18960 18196 0 -1 4194368 44 0 0 0 74 0 0 0 25 0 1 0 276114477 185868288 262 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134591515 0 0 4096 2 0 0 0 17 1 0 0
/proc/18962/statm: 45378 262 71 160 0 45216 0
[pid=18964] ppid=18960 vsize=181512 CPUtime=0.51
/proc/18964/stat : 18964 (kcnfs-smp) R 18960 18960 18196 0 -1 4194368 44 0 0 0 51 0 0 0 25 0 1 0 276114480 185868288 262 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134683095 0 0 4096 2 0 0 0 17 0 0 0
/proc/18964/statm: 45378 262 71 160 0 45216 0
[pid=18965] ppid=18960 vsize=181512 CPUtime=0.54
/proc/18965/stat : 18965 (kcnfs-smp) R 18960 18960 18196 0 -1 4194368 44 0 0 0 54 0 0 0 25 0 1 0 276114481 185868288 262 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134567604 0 0 4096 0 0 0 0 17 1 0 0
/proc/18965/statm: 45378 262 71 160 0 45216 0
[pid=18966] ppid=18960 vsize=0 CPUtime=0.35
/proc/18966/stat : 18966 (kcnfs-smp) R 18960 18960 18196 0 -1 4194372 57 0 0 0 35 0 0 0 25 0 1 0 276114482 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 2 0 0 0 17 1 0 0
/proc/18966/statm: 0 0 0 0 0 0 0
[pid=18967] ppid=18960 vsize=0 CPUtime=0.4
/proc/18967/stat : 18967 (kcnfs-smp) R 18960 18960 18196 0 -1 4194372 57 0 0 0 40 0 0 0 25 0 1 0 276114482 0 0 18446744073709551615 0 0 0 0 0 0 2147483391 4096 0 0 0 0 17 0 0 0
/proc/18967/statm: 0 0 0 0 0 0 0
[pid=18968] ppid=18960 vsize=181512 CPUtime=0.36
/proc/18968/stat : 18968 (kcnfs-smp) R 18960 18960 18196 0 -1 4194368 44 0 0 0 36 0 0 0 25 0 1 0 276114482 185868288 262 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134577061 0 0 4096 2 0 0 0 17 0 0 0
/proc/18968/statm: 45378 262 71 160 0 45216 0
[pid=18969] ppid=18960 vsize=0 CPUtime=0.21
/proc/18969/stat : 18969 (kcnfs-smp) R 18960 18960 18196 0 -1 4194372 57 0 0 0 21 0 0 0 25 0 1 0 276114512 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/18969/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 3.22
Current children cumulated vsize (KiB) 907560

[startup+2.05898 s]
/proc/loadavg: 0.92 0.97 0.97 8/85 18969
/proc/meminfo: memFree=1658208/2055920 swapFree=4192812/4192956
[pid=18960] ppid=18958 vsize=181512 CPUtime=2.9
/proc/18960/stat : 18960 (kcnfs-smp) S 18958 18960 18196 0 -1 4194304 452 399 0 0 0 0 290 0 16 0 1 0 276114476 185868288 248 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/18960/statm: 45378 248 63 160 0 45216 0
[pid=18962] ppid=18960 vsize=181512 CPUtime=1.13
/proc/18962/stat : 18962 (kcnfs-smp) R 18960 18960 18196 0 -1 4194368 44 0 0 0 113 0 0 0 25 0 1 0 276114477 185868288 262 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134580154 0 0 4096 2 0 0 0 17 1 0 0
/proc/18962/statm: 45378 262 71 160 0 45216 0
Current children cumulated CPU time (s) 4.03
Current children cumulated vsize (KiB) 363024

[startup+2.265 s]
/proc/loadavg: 0.92 0.97 0.97 2/79 18969
/proc/meminfo: memFree=1659088/2055920 swapFree=4192812/4192956
[pid=18960] ppid=18958 vsize=181512 CPUtime=2.9
/proc/18960/stat : 18960 (kcnfs-smp) S 18958 18960 18196 0 -1 4194304 452 399 0 0 0 0 290 0 16 0 1 0 276114476 185868288 248 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/18960/statm: 45378 248 63 160 0 45216 0
[pid=18962] ppid=18960 vsize=181512 CPUtime=1.34
/proc/18962/stat : 18962 (kcnfs-smp) R 18960 18960 18196 0 -1 4194368 44 0 0 0 134 0 0 0 25 0 1 0 276114477 185868288 262 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134683587 0 0 4096 2 0 0 0 17 1 0 0
/proc/18962/statm: 45378 262 71 160 0 45216 0
Current children cumulated CPU time (s) 4.24
Current children cumulated vsize (KiB) 363024

Child status: 20
Real time (s): 2.3236
CPU time (s): 4.31734
CPU user time (s): 4.31334
CPU system time (s): 0.003999
CPU usage (%): 185.804
Max. virtual memory (cumulated for all children) (KiB): 1452096

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 4.31334
system time used= 0.003999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 933
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= 55
involuntary context switches= 152

runsolver used 0.005999 second user time and 0.009998 second system time

The end

Launcher Data (download as text)

Begin job on node5 on Tue Feb 27 07:33:17 UTC 2007

IDJOB= 310746
IDBENCH= 20295
IDSOLVER= 112
FILE ID= node5/310746-1172561596

PBS_JOBID= 3971668

Free space on /tmp= 66553 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v630/unif2p-p0.9-v630-c2280-S1501024241-13-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/310746-1172561596/kcnfs-smp /tmp/evaluation/310746-1172561596/instance-310746-1172561596.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node5/watcher-310746-1172561596 -o ROOT/results/node5/solver-310746-1172561596 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/310746-1172561596/kcnfs-smp /tmp/evaluation/310746-1172561596/instance-310746-1172561596.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  c3f41406395e9f4a8725889bf7cf43c6

RANDOM SEED= 494752811

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node5.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		: 3000.224
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		: 3000.224
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:       1661176 kB
Buffers:         50768 kB
Cached:         229052 kB
SwapCached:          0 kB
Active:         234236 kB
Inactive:        89612 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1661176 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            3196 kB
Writeback:           0 kB
Mapped:          62908 kB
Slab:            56516 kB
Committed_AS:   902292 kB
PageTables:       1692 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= 66553 MiB

End job on node5 on Tue Feb 27 07:33:19 UTC 2007