Trace number 329748

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 SMP? (MO) 5.49 3.22484

General information on the benchmark

Nameindustrial/IBM_FV_2002_31_1_rule_1/
SAT_dat.k35.cnf
MD5SUM07d9949e24a0b59bc9a141fd94f50f24
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables51145
Number of clauses228408
Sum of the clauses size587574
Maximum clause length20
Minimum clause length1
Number of clauses of size 1383
Number of clauses of size 2177786
Number of clauses of size 325137
Number of clauses of size 410250
Number of clauses of size 54464
Number of clauses of size over 510388

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/329748-1173148447/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
0.39/0.48	c Input file : '/tmp/evaluation/329748-1173148447/instance-329748-1173148447.cnf'
0.39/0.48	c [#vars: 51145, #clauses: 228408 , (1-18)-CNF]
0.59/0.67	c unit clauses propagate before processing (#clause: 170840)
0.59/0.67	c estimated distribution: 8 tasks
0.79/0.82	c [PID]: 21689 21690 21691 21692 21693 21694 21695
4.20/2.62	c [PID]: 21696
4.20/2.62	c real distribution: 8 tasks

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node69/watcher-329748-1173148447 -o ROOT/results/node69/solver-329748-1173148447 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/329748-1173148447/kcnfs-smp /tmp/evaluation/329748-1173148447/instance-329748-1173148447.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2400 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: 1.84 1.84 1.45 3/64 21687
/proc/meminfo: memFree=1511536/2055920 swapFree=4184100/4192956
[pid=21687] ppid=21685 vsize=180784 CPUtime=0
/proc/21687/stat : 21687 (kcnfs-smp) R 21685 21687 21528 0 -1 4194304 66 0 0 0 0 0 0 0 18 0 1 0 334802437 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134789170 0 0 4096 0 0 0 0 17 1 0 0
/proc/21687/statm: 45196 51 43 160 0 45034 0

[startup+0.0521961 s]
/proc/loadavg: 1.84 1.84 1.45 3/64 21687
/proc/meminfo: memFree=1511536/2055920 swapFree=4184100/4192956
[pid=21687] ppid=21685 vsize=180784 CPUtime=0.04
/proc/21687/stat : 21687 (kcnfs-smp) R 21685 21687 21528 0 -1 4194304 66 0 0 0 4 0 0 0 18 0 1 0 334802437 185122816 51 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134937128 0 0 4096 0 0 0 0 17 1 0 0
/proc/21687/statm: 45196 51 43 160 0 45034 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 180784

[startup+0.101203 s]
/proc/loadavg: 1.84 1.84 1.45 3/64 21687
/proc/meminfo: memFree=1511536/2055920 swapFree=4184100/4192956
[pid=21687] ppid=21685 vsize=181576 CPUtime=0.09
/proc/21687/stat : 21687 (kcnfs-smp) R 21685 21687 21528 0 -1 4194304 293 0 0 0 9 0 0 0 18 0 1 0 334802437 185933824 278 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134937588 0 0 4096 0 0 0 0 17 1 0 0
/proc/21687/statm: 45394 279 48 160 0 45232 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 181576

[startup+0.301236 s]
/proc/loadavg: 1.84 1.84 1.45 3/64 21687
/proc/meminfo: memFree=1511536/2055920 swapFree=4184100/4192956
[pid=21687] ppid=21685 vsize=192136 CPUtime=0.29
/proc/21687/stat : 21687 (kcnfs-smp) R 21685 21687 21528 0 -1 4194304 2910 0 0 0 28 1 0 0 19 0 1 0 334802437 196747264 2895 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/21687/statm: 48034 2896 48 160 0 47872 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 192136

[startup+0.701301 s]
/proc/loadavg: 1.84 1.84 1.45 3/64 21687
/proc/meminfo: memFree=1511536/2055920 swapFree=4184100/4192956
[pid=21687] ppid=21685 vsize=211536 CPUtime=0.69
/proc/21687/stat : 21687 (kcnfs-smp) R 21685 21687 21528 0 -1 4194304 15470 0 0 0 63 6 0 0 22 0 1 0 334802437 216612864 15354 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134709120 0 0 4096 0 0 0 0 17 1 0 0
/proc/21687/statm: 52884 15358 59 160 0 52722 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 211536

[startup+1.50146 s]
/proc/loadavg: 1.84 1.84 1.45 4/67 21690
/proc/meminfo: memFree=1416280/2055920 swapFree=4184100/4192956
[pid=21687] ppid=21685 vsize=211536 CPUtime=1
/proc/21687/stat : 21687 (kcnfs-smp) R 21685 21687 21528 0 -1 4194304 28471 0 0 0 87 13 0 0 25 0 1 0 334802437 216612864 18264 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 0 0 0 0 17 0 0 0
/proc/21687/statm: 52884 18264 66 160 0 52722 0
[pid=21689] ppid=21687 vsize=211536 CPUtime=0.57
/proc/21689/stat : 21689 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2823 0 0 0 56 1 0 0 25 0 1 0 334802519 216612864 18279 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 2 0 0 0 17 1 0 0
/proc/21689/statm: 52884 18279 66 160 0 52722 0
[pid=21690] ppid=21687 vsize=211536 CPUtime=0.29
/proc/21690/stat : 21690 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2738 0 0 0 27 2 0 0 25 0 1 0 334802523 216612864 18274 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 0 0 0 0 17 0 0 0
/proc/21690/statm: 52884 18274 66 160 0 52722 0
Current children cumulated CPU time (s) 1.86
Current children cumulated vsize (KiB) 634608

[startup+3.10271 s]
/proc/loadavg: 1.84 1.84 1.45 8/71 21694
/proc/meminfo: memFree=1370296/2055920 swapFree=4184100/4192956
[pid=21687] ppid=21685 vsize=211536 CPUtime=1.21
/proc/21687/stat : 21687 (kcnfs-smp) S 21685 21687 21528 0 -1 4194304 36078 0 0 0 103 18 0 0 25 0 1 0 334802437 216612864 18268 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/21687/statm: 52884 18268 66 160 0 52722 0
[pid=21689] ppid=21687 vsize=211536 CPUtime=1.03
/proc/21689/stat : 21689 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2883 0 0 0 102 1 0 0 25 0 1 0 334802519 216612864 18288 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720338 0 0 4096 2 0 0 0 17 1 0 0
/proc/21689/statm: 52884 18288 66 160 0 52722 0
[pid=21690] ppid=21687 vsize=211536 CPUtime=0.77
/proc/21690/stat : 21690 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2829 0 0 0 75 2 0 0 25 0 1 0 334802523 216612864 18280 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 0 0 0 0 17 0 0 0
/proc/21690/statm: 52884 18280 66 160 0 52722 0
[pid=21691] ppid=21687 vsize=211536 CPUtime=0.64
/proc/21691/stat : 21691 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2835 0 0 0 63 1 0 0 25 0 1 0 334802541 216612864 18277 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 2 0 0 0 17 1 0 0
/proc/21691/statm: 52884 18277 66 160 0 52722 0
[pid=21692] ppid=21687 vsize=211536 CPUtime=0.53
/proc/21692/stat : 21692 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2775 0 0 0 51 2 0 0 25 0 1 0 334802567 216612864 18276 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 0 0 0 0 17 0 0 0
/proc/21692/statm: 52884 18276 66 160 0 52722 0
[pid=21693] ppid=21687 vsize=211536 CPUtime=0.41
/proc/21693/stat : 21693 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2727 0 0 0 40 1 0 0 25 0 1 0 334802601 216612864 18281 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 2 0 0 0 17 0 0 0
/proc/21693/statm: 52884 18281 66 160 0 52722 0
[pid=21694] ppid=21687 vsize=211536 CPUtime=0.33
/proc/21694/stat : 21694 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2705 0 0 0 31 2 0 0 25 0 1 0 334802616 216612864 18280 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 0 0 0 0 17 1 0 0
/proc/21694/statm: 52884 18280 66 160 0 52722 0
Current children cumulated CPU time (s) 4.92
Current children cumulated vsize (KiB) 1480752



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+3.20273 s]
/proc/loadavg: 1.84 1.84 1.45 9/73 21696
/proc/meminfo: memFree=1346472/2055920 swapFree=4184100/4192956
[pid=21687] ppid=21685 vsize=211536 CPUtime=1.21
/proc/21687/stat : 21687 (kcnfs-smp) S 21685 21687 21528 0 -1 4194304 36078 0 0 0 103 18 0 0 25 0 1 0 334802437 216612864 18268 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134836797 0 0 4096 0 18446744071563356171 0 0 17 0 0 0
/proc/21687/statm: 52884 18268 66 160 0 52722 0
[pid=21689] ppid=21687 vsize=211536 CPUtime=1.08
/proc/21689/stat : 21689 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2886 0 0 0 107 1 0 0 25 0 1 0 334802519 216612864 18288 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720583 0 0 4096 2 0 0 0 17 1 0 0
/proc/21689/statm: 52884 18288 66 160 0 52722 0
[pid=21690] ppid=21687 vsize=211536 CPUtime=0.79
/proc/21690/stat : 21690 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2836 0 0 0 77 2 0 0 25 0 1 0 334802523 216612864 18281 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 0 0 0 0 17 0 0 0
/proc/21690/statm: 52884 18281 66 160 0 52722 0
[pid=21691] ppid=21687 vsize=211536 CPUtime=0.7
/proc/21691/stat : 21691 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2838 0 0 0 69 1 0 0 25 0 1 0 334802541 216612864 18278 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 2 0 0 0 17 1 0 0
/proc/21691/statm: 52884 18278 66 160 0 52722 0
[pid=21692] ppid=21687 vsize=211536 CPUtime=0.6
/proc/21692/stat : 21692 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2840 0 0 0 58 2 0 0 25 0 1 0 334802567 216612864 18277 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 0 0 0 0 17 0 0 0
/proc/21692/statm: 52884 18277 66 160 0 52722 0
[pid=21693] ppid=21687 vsize=211536 CPUtime=0.41
/proc/21693/stat : 21693 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2727 0 0 0 40 1 0 0 25 0 1 0 334802601 216612864 18281 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134708968 0 0 4096 2 0 0 0 17 0 0 0
/proc/21693/statm: 52884 18281 66 160 0 52722 0
[pid=21694] ppid=21687 vsize=211536 CPUtime=0.33
/proc/21694/stat : 21694 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2705 0 0 0 31 2 0 0 25 0 1 0 334802616 216612864 18280 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 0 0 0 0 17 1 0 0
/proc/21694/statm: 52884 18280 66 160 0 52722 0
[pid=21695] ppid=21687 vsize=211536 CPUtime=0.23
/proc/21695/stat : 21695 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2713 0 0 0 21 2 0 0 25 0 1 0 334802657 216612864 18279 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720673 0 0 4096 2 0 0 0 17 1 0 0
/proc/21695/statm: 52884 18279 66 160 0 52722 0
[pid=21696] ppid=21687 vsize=211536 CPUtime=0.14
/proc/21696/stat : 21696 (kcnfs-smp) R 21687 21687 21528 0 -1 4194368 2694 0 0 0 12 2 0 0 25 0 1 0 334802695 216612864 18273 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134720519 0 0 4096 0 0 0 0 17 0 0 0
/proc/21696/statm: 52884 18273 66 160 0 52722 0
Current children cumulated CPU time (s) 5.49
Current children cumulated vsize (KiB) 1903824

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

Child ended because it received signal 15 (SIGTERM)

!!! problem with CPU time !!!
wait4(...,&childrusage) returns 21687 and gives childrusage.ru_utime.tv_sec=1 childrusage.ru_utime.tv_usec=38842 childrusage.ru_stime.tv_sec=0 childrusage.ru_stime.tv_usec=193970
CPU time returned by wait4() is 1.23281
while last known CPU time is 5.49

Solver probably didn't/couldn't wait for its children
Using last known CPU time as value...

Real time (s): 3.22484
CPU time (s): 5.49
CPU user time (s): 5.18
CPU system time (s): 0.31
CPU usage (%): 170.241
Max. virtual memory (cumulated for all children) (KiB): 1903824

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.03884
system time used= 0.19397
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 36078
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= 9
involuntary context switches= 25

runsolver used 0.006998 second user time and 0.019996 second system time

The end

Launcher Data (download as text)

Begin job on node69 on Tue Mar  6 02:34:07 UTC 2007

IDJOB= 329748
IDBENCH= 20547
IDSOLVER= 112
FILE ID= node69/329748-1173148447

PBS_JOBID= 4015211

Free space on /tmp= 66529 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/industrial/IBM_FV_2002_31_1_rule_1/SAT_dat.k35.cnf
COMMAND LINE= /tmp/evaluation/329748-1173148447/kcnfs-smp /tmp/evaluation/329748-1173148447/instance-329748-1173148447.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node69/watcher-329748-1173148447 -o ROOT/results/node69/solver-329748-1173148447 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/329748-1173148447/kcnfs-smp /tmp/evaluation/329748-1173148447/instance-329748-1173148447.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  07d9949e24a0b59bc9a141fd94f50f24

RANDOM SEED= 649057735

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node69.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:       1512008 kB
Buffers:         34324 kB
Cached:         429372 kB
SwapCached:       2716 kB
Active:         107960 kB
Inactive:       365492 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1512008 kB
SwapTotal:     4192956 kB
SwapFree:      4184100 kB
Dirty:            8264 kB
Writeback:           0 kB
Mapped:          15840 kB
Slab:            56544 kB
Committed_AS:   843572 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= 66529 MiB

End job on node69 on Tue Mar  6 02:34:12 UTC 2007