Trace number 1831513

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. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock 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
clasp 1.2.0-SAT09-32UNSAT 16.1495 16.1555

General information on the benchmark

Nameindustrial/jarvisalo/
eq.atree.braun.8.unsat.cnf
MD5SUM35a8bbabf9cb954216ad71150cb47290
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark13.6769
Satisfiable
(Un)Satisfiability was proved
Number of variables684
Number of clauses2300
Sum of the clauses size5992
Maximum clause length15
Minimum clause length1
Number of clauses of size 13
Number of clauses of size 2978
Number of clauses of size 31284
Number of clauses of size 416
Number of clauses of size 512
Number of clauses of size over 57

Solver Data 

16.09/16.15	c clasp version 1.2.0-SAT09 
16.09/16.15	c Reading from ...759278/instance-1831513-1242759278.cnf
16.09/16.15	c Reading      : Done(0.000s)
16.09/16.15	c Preprocessing: |-\Done(0.000s)
16.09/16.15	c Solving...
16.09/16.15	
16.09/16.15	c Models    : 0     
16.09/16.15	c Time         : 16.140s (Solve: 16.140s)
16.09/16.15	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1831513-1242759278/watcher-1831513-1242759278 -o /tmp/evaluation-result-1831513-1242759278/solver-1831513-1242759278 -C 10000 -W 12000 -M 1800 HOME/clasp --file=HOME/instance-1831513-1242759278.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.92 0.39 0.14 3/64 3327
/proc/meminfo: memFree=1991216/2055920 swapFree=4180384/4192956
[pid=3327] ppid=3325 vsize=1828 CPUtime=0
/proc/3327/stat : 3327 (clasp) R 3325 3327 3236 0 -1 4194304 258 0 0 0 0 0 0 0 18 0 1 0 303961106 1871872 237 1992294400 134512640 136057169 4294956160 18446744073709551615 134774431 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3327/statm: 457 237 167 377 0 77 0

[startup+0.012988 s]
/proc/loadavg: 0.92 0.39 0.14 3/64 3327
/proc/meminfo: memFree=1991216/2055920 swapFree=4180384/4192956
[pid=3327] ppid=3325 vsize=1960 CPUtime=0.01
/proc/3327/stat : 3327 (clasp) R 3325 3327 3236 0 -1 4194304 290 0 0 0 1 0 0 0 18 0 1 0 303961106 2007040 269 1992294400 134512640 136057169 4294956160 18446744073709551615 134828260 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3327/statm: 490 269 180 377 0 110 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1960

[startup+0.102003 s]
/proc/loadavg: 0.92 0.39 0.14 3/64 3327
/proc/meminfo: memFree=1991216/2055920 swapFree=4180384/4192956
[pid=3327] ppid=3325 vsize=2092 CPUtime=0.1
/proc/3327/stat : 3327 (clasp) R 3325 3327 3236 0 -1 4194304 315 0 0 0 10 0 0 0 18 0 1 0 303961106 2142208 294 1992294400 134512640 136057169 4294956160 18446744073709551615 134756828 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3327/statm: 523 294 181 377 0 143 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2092

[startup+0.301037 s]
/proc/loadavg: 0.92 0.39 0.14 3/64 3327
/proc/meminfo: memFree=1991216/2055920 swapFree=4180384/4192956
[pid=3327] ppid=3325 vsize=2092 CPUtime=0.29
/proc/3327/stat : 3327 (clasp) R 3325 3327 3236 0 -1 4194304 335 0 0 0 29 0 0 0 19 0 1 0 303961106 2142208 314 1992294400 134512640 136057169 4294956160 18446744073709551615 134618275 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3327/statm: 523 314 181 377 0 143 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2092

[startup+0.701108 s]
/proc/loadavg: 0.92 0.39 0.14 3/64 3327
/proc/meminfo: memFree=1991216/2055920 swapFree=4180384/4192956
[pid=3327] ppid=3325 vsize=2224 CPUtime=0.69
/proc/3327/stat : 3327 (clasp) R 3325 3327 3236 0 -1 4194304 359 0 0 0 69 0 0 0 22 0 1 0 303961106 2277376 338 1992294400 134512640 136057169 4294956160 18446744073709551615 134823938 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3327/statm: 556 338 181 377 0 176 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2224

[startup+1.50125 s]
/proc/loadavg: 0.92 0.40 0.15 2/65 3328
/proc/meminfo: memFree=1990504/2055920 swapFree=4180384/4192956
[pid=3327] ppid=3325 vsize=2224 CPUtime=1.49
/proc/3327/stat : 3327 (clasp) R 3325 3327 3236 0 -1 4194304 376 0 0 0 149 0 0 0 25 0 1 0 303961106 2277376 355 1992294400 134512640 136057169 4294956160 18446744073709551615 134823758 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3327/statm: 556 355 181 377 0 176 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2224

[startup+3.10153 s]
/proc/loadavg: 0.92 0.40 0.15 2/65 3328
/proc/meminfo: memFree=1990248/2055920 swapFree=4180384/4192956
[pid=3327] ppid=3325 vsize=2488 CPUtime=3.09
/proc/3327/stat : 3327 (clasp) R 3325 3327 3236 0 -1 4194304 413 0 0 0 309 0 0 0 25 0 1 0 303961106 2547712 392 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3327/statm: 622 392 181 377 0 242 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2488

[startup+6.30109 s]
/proc/loadavg: 0.92 0.40 0.15 2/65 3328
/proc/meminfo: memFree=1989864/2055920 swapFree=4180384/4192956
[pid=3327] ppid=3325 vsize=2620 CPUtime=6.29
/proc/3327/stat : 3327 (clasp) R 3325 3327 3236 0 -1 4194304 466 0 0 0 629 0 0 0 25 0 1 0 303961106 2682880 445 1992294400 134512640 136057169 4294956160 18446744073709551615 134615636 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3327/statm: 655 445 181 377 0 275 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2620

[startup+12.7012 s]
/proc/loadavg: 0.93 0.42 0.15 2/65 3328
/proc/meminfo: memFree=1989608/2055920 swapFree=4180384/4192956
[pid=3327] ppid=3325 vsize=2880 CPUtime=12.69
/proc/3327/stat : 3327 (clasp) R 3325 3327 3236 0 -1 4194304 515 0 0 0 1269 0 0 0 25 0 1 0 303961106 2949120 494 1992294400 134512640 136057169 4294956160 18446744073709551615 134824081 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3327/statm: 720 494 181 377 0 340 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2880

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

[startup+14.3055 s]
/proc/loadavg: 0.93 0.42 0.15 2/65 3328
/proc/meminfo: memFree=1989544/2055920 swapFree=4180384/4192956
[pid=3327] ppid=3325 vsize=2880 CPUtime=14.29
/proc/3327/stat : 3327 (clasp) R 3325 3327 3236 0 -1 4194304 525 0 0 0 1429 0 0 0 25 0 1 0 303961106 2949120 504 1992294400 134512640 136057169 4294956160 18446744073709551615 134820200 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3327/statm: 720 504 181 377 0 340 0
Current children cumulated CPU time (s) 14.29
Current children cumulated vsize (KiB) 2880

[startup+15.1016 s]
/proc/loadavg: 0.93 0.42 0.15 2/65 3328
/proc/meminfo: memFree=1989544/2055920 swapFree=4180384/4192956
[pid=3327] ppid=3325 vsize=2880 CPUtime=15.09
/proc/3327/stat : 3327 (clasp) R 3325 3327 3236 0 -1 4194304 527 0 0 0 1509 0 0 0 25 0 1 0 303961106 2949120 506 1992294400 134512640 136057169 4294956160 18446744073709551615 134824014 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3327/statm: 720 506 181 377 0 340 0
Current children cumulated CPU time (s) 15.09
Current children cumulated vsize (KiB) 2880

[startup+15.9018 s]
/proc/loadavg: 0.93 0.42 0.15 2/65 3328
/proc/meminfo: memFree=1989544/2055920 swapFree=4180384/4192956
[pid=3327] ppid=3325 vsize=2880 CPUtime=15.89
/proc/3327/stat : 3327 (clasp) R 3325 3327 3236 0 -1 4194304 528 0 0 0 1589 0 0 0 25 0 1 0 303961106 2949120 507 1992294400 134512640 136057169 4294956160 18446744073709551615 134823794 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3327/statm: 720 507 181 377 0 340 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 2880

[startup+16.1018 s]
/proc/loadavg: 0.93 0.42 0.15 2/65 3328
/proc/meminfo: memFree=1989544/2055920 swapFree=4180384/4192956
[pid=3327] ppid=3325 vsize=2880 CPUtime=16.09
/proc/3327/stat : 3327 (clasp) R 3325 3327 3236 0 -1 4194304 528 0 0 0 1609 0 0 0 25 0 1 0 303961106 2949120 507 1992294400 134512640 136057169 4294956160 18446744073709551615 134823327 0 0 4096 16386 0 0 0 17 1 0 0
/proc/3327/statm: 720 507 181 377 0 340 0
Current children cumulated CPU time (s) 16.09
Current children cumulated vsize (KiB) 2880

Child status: 20
Real time (s): 16.1555
CPU time (s): 16.1495
CPU user time (s): 16.1475
CPU system time (s): 0.001999
CPU usage (%): 99.9631
Max. virtual memory (cumulated for all children) (KiB): 2884

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.1475
system time used= 0.001999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 534
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= 2
involuntary context switches= 32

runsolver used 0.016997 second user time and 0.039993 second system time

The end

Launcher Data 

Begin job on node18 at 2009-05-19 20:54:38
IDJOB=1831513
IDBENCH=20473
IDSOLVER=637
FILE ID=node18/1831513-1242759278
PBS_JOBID= 9322280
Free space on /tmp= 66272 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT07/industrial/jarvisalo/eq.atree.braun.8.unsat.cnf
COMMAND LINE= HOME/clasp --file=BENCHNAME --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1831513-1242759278/watcher-1831513-1242759278 -o /tmp/evaluation-result-1831513-1242759278/solver-1831513-1242759278 -C 10000 -W 12000 -M 1800  HOME/clasp --file=HOME/instance-1831513-1242759278.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 35a8bbabf9cb954216ad71150cb47290
RANDOM SEED=484181363

node18.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/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		: 3000.280
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		: 3000.280
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:       1991632 kB
Buffers:          5080 kB
Cached:          24052 kB
SwapCached:       6636 kB
Active:          21244 kB
Inactive:        16036 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1991632 kB
SwapTotal:     4192956 kB
SwapFree:      4180384 kB
Dirty:            1896 kB
Writeback:           0 kB
Mapped:          13372 kB
Slab:            13040 kB
Committed_AS:  1069128 kB
PageTables:       1376 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= 66268 MiB
End job on node18 at 2009-05-19 20:54:55