Trace number 293244

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
FH 2007-02-08SAT 0.12798 0.129319

General information on the benchmark

Namerandom/OnTreshold/5SAT/v120/
unif-k5-r21.3-v120-c2556-S429936805-03.SAT.shuffled.cnf
MD5SUM710e114bd7c9ad2ada2dc0a847d1be61
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.028995
Satisfiable
(Un)Satisfiability was proved
Number of variables120
Number of clauses2556
Sum of the clauses size12780
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 52556
Number of clauses of size over 50

Solver Data (download as text)

0.10/0.12	c try 1 flip j 5216
0.10/0.12	c A solution is found
0.10/0.12	s SATISFIABLE
0.10/0.12	v -1 2 3 -4 5 6 7 8 9 -10 11 12 -13 -14 -15 -16 -17 -18 19 -20 -21 22 -23 24 25 -26 27 28 -29 -30 31 -32 -33 -34 35 -36 37 -38 -39 40 41 -42 -43 -44 45 -46 -47 48 -49 50 -51 -52 53 -54 55 56 -57 58 -59 60 -61 62 63 64 65 -66 -67 68 69 -70 71 72 73 -74 -75 -76 -77 78 -79 80 -81 -82 83 -84 -85 86 87 88 89 -90 -91 -92 93 94 95 -96 -97 -98 99 -100 -101 -102 103 -104 105 -106 -107 108 -109 -110 -111 112 -113 -114 115 -116 117 118 119 120 
0.10/0.12	v 0 
0.10/0.12	c Done (mycputime is 0.000 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

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

command line: runsolver --timestamp -w ROOT/results/node21/watcher-293244-1171767135 -o ROOT/results/node21/solver-293244-1171767135 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/293244-1171767135/FH /tmp/evaluation/293244-1171767135/instance-293244-1171767135.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 0.98 0.99 3/77 11996
/proc/meminfo: memFree=788632/2055920 swapFree=4147448/4192956
[pid=11996] ppid=11994 vsize=244720 CPUtime=0
/proc/11996/stat : 11996 (FH) R 11994 11996 11094 0 -1 4194304 94 0 0 0 0 0 0 0 18 0 1 0 196667417 250593280 78 18446744073709551615 134512640 134936988 4294956640 18446744073709551615 134521553 0 0 4096 0 0 0 0 17 1 0 0
/proc/11996/statm: 61180 78 36 103 0 60684 0

[startup+0.106718 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 11996
/proc/meminfo: memFree=788632/2055920 swapFree=4147448/4192956
[pid=11996] ppid=11994 vsize=246560 CPUtime=0.1
/proc/11996/stat : 11996 (FH) R 11994 11996 11094 0 -1 4194304 219 0 0 0 10 0 0 0 18 0 1 0 196667417 252477440 199 18446744073709551615 134512640 134936988 4294956640 18446744073709551615 134552458 0 0 4096 0 0 0 0 17 1 0 0
/proc/11996/statm: 61640 199 40 103 0 61144 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246560

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

[startup+0.106718 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 11996
/proc/meminfo: memFree=788632/2055920 swapFree=4147448/4192956
[pid=11996] ppid=11994 vsize=246560 CPUtime=0.1
/proc/11996/stat : 11996 (FH) R 11994 11996 11094 0 -1 4194304 219 0 0 0 10 0 0 0 18 0 1 0 196667417 252477440 199 18446744073709551615 134512640 134936988 4294956640 18446744073709551615 134552458 0 0 4096 0 0 0 0 17 1 0 0
/proc/11996/statm: 61640 199 40 103 0 61144 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 246560

Child status: 10
Real time (s): 0.129319
CPU time (s): 0.12798
CPU user time (s): 0.124981
CPU system time (s): 0.002999
CPU usage (%): 98.9645
Max. virtual memory (cumulated for all children) (KiB): 246560

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.124981
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 232
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= 2

runsolver used 0.001999 second user time and 0.005999 second system time

The end

Launcher Data (download as text)

Begin job on node21 on Sun Feb 18 02:52:15 UTC 2007

IDJOB= 293244
IDBENCH= 19859
IDSOLVER= 117
FILE ID= node21/293244-1171767135

PBS_JOBID= 3839504

Free space on /tmp= 66559 MiB

SOLVER NAME= FH 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/5SAT/v120/unif-k5-r21.3-v120-c2556-S429936805-03.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/293244-1171767135/FH /tmp/evaluation/293244-1171767135/instance-293244-1171767135.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node21/watcher-293244-1171767135 -o ROOT/results/node21/solver-293244-1171767135 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/293244-1171767135/FH /tmp/evaluation/293244-1171767135/instance-293244-1171767135.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  710e114bd7c9ad2ada2dc0a847d1be61

RANDOM SEED= 197040912

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node21.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		: 3000.245
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		: 3000.245
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:        789104 kB
Buffers:         41936 kB
Cached:        1116904 kB
SwapCached:      15384 kB
Active:         622412 kB
Inactive:       561404 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        789104 kB
SwapTotal:     4192956 kB
SwapFree:      4147448 kB
Dirty:            6160 kB
Writeback:           0 kB
Mapped:          29732 kB
Slab:            68712 kB
Committed_AS:   630840 kB
PageTables:       1656 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= 66559 MiB

End job on node21 on Sun Feb 18 02:52:15 UTC 2007