Trace number 1785222

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 2.00369 2.00463

General information on the benchmark

Namecrafted/Difficult/contest05/sabharwal/
grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.cnf
MD5SUM4c3b2816cb16b0fd4134bf2c85ce45d0
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.87571
Satisfiable
(Un)Satisfiability was proved
Number of variables90300
Number of clauses179702
Sum of the clauses size718202
Maximum clause length4
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 2300
Number of clauses of size 30
Number of clauses of size 4179400
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

1.99/2.00	c clasp version 1.2.0-SAT09 
1.99/2.00	c Reading from ...898219/instance-1785222-1241898219.cnf
1.99/2.00	c Reading      : Done(0.160s)
1.99/2.00	c Preprocessing: |-Done(1.620s)
1.99/2.00	
1.99/2.00	c Models    : 0     
1.99/2.00	c Time         : 1.780s (Solve: 0.000s)
1.99/2.00	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-1785222-1241898219/watcher-1785222-1241898219 -o /tmp/evaluation-result-1785222-1241898219/solver-1785222-1241898219 -C 5000 -W 6000 -M 1800 HOME/clasp --file=HOME/instance-1785222-1241898219.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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: 1.00 1.00 1.00 3/64 31468
/proc/meminfo: memFree=1694880/2055920 swapFree=4181940/4192956
[pid=31468] ppid=31466 vsize=2740 CPUtime=0
/proc/31468/stat : 31468 (clasp) R 31466 31468 31222 0 -1 4194304 557 0 0 0 0 0 0 0 18 0 1 0 217849175 2805760 363 1992294400 134512640 136057169 4294956160 18446744073709551615 134816709 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31468/statm: 685 370 139 377 0 305 0

[startup+0.012783 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 31468
/proc/meminfo: memFree=1694880/2055920 swapFree=4181940/4192956
[pid=31468] ppid=31466 vsize=8624 CPUtime=0
/proc/31468/stat : 31468 (clasp) R 31466 31468 31222 0 -1 4194304 1404 0 0 0 0 0 0 0 18 0 1 0 217849175 8830976 1089 1992294400 134512640 136057169 4294956160 18446744073709551615 134834619 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31468/statm: 2156 1093 140 377 0 1776 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 8624

[startup+0.101789 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 31468
/proc/meminfo: memFree=1694880/2055920 swapFree=4181940/4192956
[pid=31468] ppid=31466 vsize=13740 CPUtime=0.09
/proc/31468/stat : 31468 (clasp) R 31466 31468 31222 0 -1 4194304 3395 0 0 0 9 0 0 0 18 0 1 0 217849175 14069760 3080 1992294400 134512640 136057169 4294956160 18446744073709551615 135502702 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31468/statm: 3435 3080 147 377 0 3055 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 13740

[startup+0.301806 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 31468
/proc/meminfo: memFree=1694880/2055920 swapFree=4181940/4192956
[pid=31468] ppid=31466 vsize=23140 CPUtime=0.29
/proc/31468/stat : 31468 (clasp) R 31466 31468 31222 0 -1 4194304 6589 0 0 0 28 1 0 0 19 0 1 0 217849175 23695360 5433 1992294400 134512640 136057169 4294956160 18446744073709551615 135443142 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31468/statm: 5785 5433 165 377 0 5405 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 23140

[startup+0.701842 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 31468
/proc/meminfo: memFree=1694880/2055920 swapFree=4181940/4192956
[pid=31468] ppid=31466 vsize=27068 CPUtime=0.69
/proc/31468/stat : 31468 (clasp) R 31466 31468 31222 0 -1 4194304 7701 0 0 0 67 2 0 0 22 0 1 0 217849175 27717632 6409 1992294400 134512640 136057169 4294956160 18446744073709551615 134771488 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31468/statm: 6767 6409 165 377 0 6387 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 27068

[startup+1.50191 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 31469
/proc/meminfo: memFree=1669784/2055920 swapFree=4181940/4192956
[pid=31468] ppid=31466 vsize=28552 CPUtime=1.49
/proc/31468/stat : 31468 (clasp) R 31466 31468 31222 0 -1 4194304 8033 0 0 0 147 2 0 0 25 0 1 0 217849175 29237248 6741 1992294400 134512640 136057169 4294956160 18446744073709551615 134768694 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31468/statm: 7138 6741 170 377 0 6758 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 28552

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

[startup+1.90195 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 31469
/proc/meminfo: memFree=1669784/2055920 swapFree=4181940/4192956
[pid=31468] ppid=31466 vsize=15808 CPUtime=1.89
/proc/31468/stat : 31468 (clasp) R 31466 31468 31222 0 -1 4194304 8246 0 0 0 187 2 0 0 25 0 1 0 217849175 16187392 3649 1992294400 134512640 136057169 4294956160 18446744073709551615 135433706 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31468/statm: 3952 3649 176 377 0 3572 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 15808

[startup+2.00196 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 31469
/proc/meminfo: memFree=1669784/2055920 swapFree=4181940/4192956
[pid=31468] ppid=31466 vsize=15808 CPUtime=1.99
/proc/31468/stat : 31468 (clasp) R 31466 31468 31222 0 -1 4194304 8246 0 0 0 197 2 0 0 25 0 1 0 217849175 16187392 3649 1992294400 134512640 136057169 4294956160 18446744073709551615 135433723 0 0 4096 16386 0 0 0 17 1 0 0
/proc/31468/statm: 3952 3649 253 377 0 3572 0
Current children cumulated CPU time (s) 1.99
Current children cumulated vsize (KiB) 15808

Child status: 20
Real time (s): 2.00463
CPU time (s): 2.00369
CPU user time (s): 1.9717
CPU system time (s): 0.031995
CPU usage (%): 99.9533
Max. virtual memory (cumulated for all children) (KiB): 28808

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.9717
system time used= 0.031995
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8246
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= 4

runsolver used 0.005999 second user time and 0.009998 second system time

The end

Launcher Data 

Begin job on node58 at 2009-05-09 21:43:39
IDJOB=1785222
IDBENCH=24728
IDSOLVER=637
FILE ID=node58/1785222-1241898219
PBS_JOBID= 9264757
Free space on /tmp= 66132 MiB

SOLVER NAME= clasp 1.2.0-SAT09-32
BENCH NAME= SAT07/crafted/Difficult/contest05/sabharwal/grid-pebbling-unsat-grid-pbl-0300.sat05-1350.sat05-1350.reshuffled-07.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-1785222-1241898219/watcher-1785222-1241898219 -o /tmp/evaluation-result-1785222-1241898219/solver-1785222-1241898219 -C 5000 -W 6000 -M 1800  HOME/clasp --file=HOME/instance-1785222-1241898219.cnf --dimacs --number=1 --sat-p=20,25,150 --hParam=0,512

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 4c3b2816cb16b0fd4134bf2c85ce45d0
RANDOM SEED=693379874

node58.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		: 3000.233
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		: 3000.233
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:       1695296 kB
Buffers:         37956 kB
Cached:         258076 kB
SwapCached:       4936 kB
Active:          89216 kB
Inactive:       215384 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1695296 kB
SwapTotal:     4192956 kB
SwapFree:      4181940 kB
Dirty:            6956 kB
Writeback:           0 kB
Mapped:          14708 kB
Slab:            42040 kB
Committed_AS:   672884 kB
PageTables:       1356 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= 66128 MiB
End job on node58 at 2009-05-09 21:43:42