Trace number 334962

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? (exit code) 4.17536 4.17745

General information on the benchmark

Namecrafted/Hard/contest05/phnf/
phnf-size10-exclusive-all.used-as.sat04-986.sat05-4198.reshuffled-07.cnf
MD5SUM73bcef7c584867538ae0bed90374a7ab
Bench CategoryCRAFTED (crafted 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 variables61649
Number of clauses3157120
Sum of the clauses size6361883
Maximum clause length10
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 23150117
Number of clauses of size 31
Number of clauses of size 413
Number of clauses of size 58
Number of clauses of size over 56981

Solver Data (download as text)

0.00/0.00	
0.00/0.00	c Computed by /tmp/evaluation/334962-1173602252/kcnfs-smp   V. 1.2
0.00/0.00	c reading file ... done
4.09/4.14	c this formula cannot be solved by kcnfs-smp
4.09/4.14

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/node4/watcher-334962-1173602252 -o ROOT/results/node4/solver-334962-1173602252 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/334962-1173602252/kcnfs-smp /tmp/evaluation/334962-1173602252/instance-334962-1173602252.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: 0.92 0.95 0.98 3/77 31569
/proc/meminfo: memFree=1297960/2055920 swapFree=4153224/4192956
[pid=31569] ppid=31567 vsize=180916 CPUtime=0
/proc/31569/stat : 31569 (kcnfs-smp) R 31567 31569 31219 0 -1 4194304 125 0 0 0 0 0 0 0 18 0 1 0 380180832 185257984 110 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/31569/statm: 45229 111 48 160 0 45067 0

[startup+0.103175 s]
/proc/loadavg: 0.92 0.95 0.98 3/77 31569
/proc/meminfo: memFree=1297960/2055920 swapFree=4153224/4192956
[pid=31569] ppid=31567 vsize=186196 CPUtime=0.09
/proc/31569/stat : 31569 (kcnfs-smp) R 31567 31569 31219 0 -1 4194304 1450 0 0 0 9 0 0 0 18 0 1 0 380180832 190664704 1435 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/31569/statm: 46549 1436 48 160 0 46387 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 186196

[startup+0.201185 s]
/proc/loadavg: 0.92 0.95 0.98 3/77 31569
/proc/meminfo: memFree=1297960/2055920 swapFree=4153224/4192956
[pid=31569] ppid=31567 vsize=191476 CPUtime=0.19
/proc/31569/stat : 31569 (kcnfs-smp) R 31567 31569 31219 0 -1 4194304 2768 0 0 0 19 0 0 0 18 0 1 0 380180832 196071424 2753 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/31569/statm: 47869 2754 48 160 0 47707 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 191476

[startup+0.301195 s]
/proc/loadavg: 0.92 0.95 0.98 3/77 31569
/proc/meminfo: memFree=1297960/2055920 swapFree=4153224/4192956
[pid=31569] ppid=31567 vsize=196888 CPUtime=0.29
/proc/31569/stat : 31569 (kcnfs-smp) R 31567 31569 31219 0 -1 4194304 4112 0 0 0 28 1 0 0 19 0 1 0 380180832 201613312 4097 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/31569/statm: 49222 4097 48 160 0 49060 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 196888

[startup+0.701232 s]
/proc/loadavg: 0.92 0.95 0.98 3/77 31569
/proc/meminfo: memFree=1297960/2055920 swapFree=4153224/4192956
[pid=31569] ppid=31567 vsize=218404 CPUtime=0.69
/proc/31569/stat : 31569 (kcnfs-smp) R 31567 31569 31219 0 -1 4194304 9503 0 0 0 65 4 0 0 22 0 1 0 380180832 223645696 9488 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/31569/statm: 54601 9489 48 160 0 54439 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 218404

[startup+1.50131 s]
/proc/loadavg: 0.93 0.95 0.98 2/78 31570
/proc/meminfo: memFree=1237536/2055920 swapFree=4153224/4192956
[pid=31569] ppid=31567 vsize=261568 CPUtime=1.49
/proc/31569/stat : 31569 (kcnfs-smp) R 31567 31569 31219 0 -1 4194304 20279 0 0 0 139 10 0 0 25 0 1 0 380180832 267845632 20264 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/31569/statm: 65392 20264 48 160 0 65230 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 261568

[startup+3.10146 s]
/proc/loadavg: 0.93 0.95 0.98 2/78 31570
/proc/meminfo: memFree=1179232/2055920 swapFree=4153224/4192956
[pid=31569] ppid=31567 vsize=347632 CPUtime=3.09
/proc/31569/stat : 31569 (kcnfs-smp) R 31567 31569 31219 0 -1 4194304 41813 0 0 0 290 19 0 0 25 0 1 0 380180832 355975168 41798 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/31569/statm: 86908 41799 48 160 0 86746 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 347632

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

[startup+3.20247 s]
/proc/loadavg: 0.93 0.95 0.98 2/78 31570
/proc/meminfo: memFree=1179232/2055920 swapFree=4153224/4192956
[pid=31569] ppid=31567 vsize=353176 CPUtime=3.19
/proc/31569/stat : 31569 (kcnfs-smp) R 31567 31569 31219 0 -1 4194304 43170 0 0 0 299 20 0 0 25 0 1 0 380180832 361652224 43155 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/31569/statm: 88294 43155 48 160 0 88132 0
Current children cumulated CPU time (s) 3.19
Current children cumulated vsize (KiB) 353176

[startup+3.60151 s]
/proc/loadavg: 0.93 0.95 0.98 2/78 31570
/proc/meminfo: memFree=1119904/2055920 swapFree=4153224/4192956
[pid=31569] ppid=31567 vsize=374560 CPUtime=3.59
/proc/31569/stat : 31569 (kcnfs-smp) R 31567 31569 31219 0 -1 4194304 48537 0 0 0 337 22 0 0 25 0 1 0 380180832 383549440 48522 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134820679 0 0 4096 0 0 0 0 17 1 0 0
/proc/31569/statm: 93640 48523 48 160 0 93478 0
Current children cumulated CPU time (s) 3.59
Current children cumulated vsize (KiB) 374560

[startup+4.00155 s]
/proc/loadavg: 0.93 0.95 0.98 2/78 31570
/proc/meminfo: memFree=1119904/2055920 swapFree=4153224/4192956
[pid=31569] ppid=31567 vsize=396076 CPUtime=3.99
/proc/31569/stat : 31569 (kcnfs-smp) R 31567 31569 31219 0 -1 4194304 53916 0 0 0 374 25 0 0 25 0 1 0 380180832 405581824 53901 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/31569/statm: 99019 53902 48 160 0 98857 0
Current children cumulated CPU time (s) 3.99
Current children cumulated vsize (KiB) 396076

[startup+4.10156 s]
/proc/loadavg: 0.93 0.95 0.98 2/78 31570
/proc/meminfo: memFree=1119904/2055920 swapFree=4153224/4192956
[pid=31569] ppid=31567 vsize=401488 CPUtime=4.09
/proc/31569/stat : 31569 (kcnfs-smp) R 31567 31569 31219 0 -1 4194304 55260 0 0 0 384 25 0 0 25 0 1 0 380180832 411123712 55245 18446744073709551615 134512640 135172044 4294956704 18446744073709551615 134841789 0 0 4096 0 0 0 0 17 1 0 0
/proc/31569/statm: 100372 55245 48 160 0 100210 0
Current children cumulated CPU time (s) 4.09
Current children cumulated vsize (KiB) 401488

Child status: 1
Real time (s): 4.17745
CPU time (s): 4.17536
CPU user time (s): 3.88141
CPU system time (s): 0.293955
CPU usage (%): 99.95
Max. virtual memory (cumulated for all children) (KiB): 401488

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.88141
system time used= 0.293955
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 55807
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= 3

runsolver used 0.008998 second user time and 0.010998 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Sun Mar 11 08:37:40 UTC 2007

IDJOB= 334962
IDBENCH= 24640
IDSOLVER= 112
FILE ID= node4/334962-1173602252

PBS_JOBID= 4101247

Free space on /tmp= 66436 MiB

SOLVER NAME= KCNFS SMP
BENCH NAME= HOME/pub/bench/SAT07/crafted/Hard/contest05/phnf/phnf-size10-exclusive-all.used-as.sat04-986.sat05-4198.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/334962-1173602252/kcnfs-smp /tmp/evaluation/334962-1173602252/instance-334962-1173602252.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-334962-1173602252 -o ROOT/results/node4/solver-334962-1173602252 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/334962-1173602252/kcnfs-smp /tmp/evaluation/334962-1173602252/instance-334962-1173602252.cnf            

META MD5SUM SOLVER= 23f87ccf1c743ff5b6146b444e216cd3
MD5SUM BENCH=  73bcef7c584867538ae0bed90374a7ab

RANDOM SEED= 211486498

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.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		: 3000.231
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		: 3000.231
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:       1298368 kB
Buffers:         50240 kB
Cached:         624328 kB
SwapCached:       2984 kB
Active:         483336 kB
Inactive:       215184 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1298368 kB
SwapTotal:     4192956 kB
SwapFree:      4153224 kB
Dirty:           48760 kB
Writeback:           0 kB
Mapped:          30360 kB
Slab:            44596 kB
Committed_AS:  1320340 kB
PageTables:       1768 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= 66436 MiB

End job on node4 on Sun Mar 11 08:37:44 UTC 2007