Trace number 1523388

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
Hybrid2 2009-03-22SAT 2.26565 2.26888

General information on the benchmark

NameRANDOM/MEDIUM/7SAT/SATISFIABLE/75/
unif-k7-r89-v75-c6675-S819692891-023.cnf
MD5SUMf025101ee357b099f3b22dfcd8620ffb
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.843871
Satisfiable
(Un)Satisfiability was proved
Number of variables75
Number of clauses6675
Sum of the clauses size46725
Maximum clause length7
Minimum clause length7
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 50
Number of clauses of size over 56675

Solver Data 

2.20/2.26	c try 1 flip j 48680
2.20/2.26	c A solution is found
2.20/2.26	s SATISFIABLE
2.20/2.26	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 
2.20/2.26	v 0 
2.20/2.26	c Done (mycputime is 0.470 seconds)

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1523388-1238481234/watcher-1523388-1238481234 -o /tmp/evaluation-result-1523388-1238481234/solver-1523388-1238481234 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1523388-1238481234.cnf 852663810 

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): 1800 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: 1.95 1.99 2.05 4/86 29802
/proc/meminfo: memFree=1681040/2055924 swapFree=4179644/4192956
[pid=29802] ppid=29800 vsize=450944 CPUtime=0
/proc/29802/stat : 29802 (Hybrid2) R 29800 29802 29765 0 -1 4194304 117 0 0 0 0 0 0 0 21 0 1 0 474453863 461766656 102 1992294400 134512640 135106774 4294956224 18446744073709551615 134612774 0 0 4096 0 0 0 0 17 1 0 0
/proc/29802/statm: 112736 102 53 145 0 111612 0

[startup+0.026744 s]
/proc/loadavg: 1.95 1.99 2.05 4/86 29802
/proc/meminfo: memFree=1681040/2055924 swapFree=4179644/4192956
[pid=29802] ppid=29800 vsize=451732 CPUtime=0.02
/proc/29802/stat : 29802 (Hybrid2) R 29800 29802 29765 0 -1 4194304 334 0 0 0 2 0 0 0 21 0 1 0 474453863 462573568 318 1992294400 134512640 135106774 4294956224 18446744073709551615 134524051 0 0 4096 0 0 0 0 17 1 0 0
/proc/29802/statm: 112933 318 53 145 0 111809 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 451732

[startup+0.101757 s]
/proc/loadavg: 1.95 1.99 2.05 4/86 29802
/proc/meminfo: memFree=1681040/2055924 swapFree=4179644/4192956
[pid=29802] ppid=29800 vsize=451732 CPUtime=0.09
/proc/29802/stat : 29802 (Hybrid2) R 29800 29802 29765 0 -1 4194304 334 0 0 0 9 0 0 0 21 0 1 0 474453863 462573568 318 1992294400 134512640 135106774 4294956224 18446744073709551615 134524121 0 0 4096 0 0 0 0 17 1 0 0
/proc/29802/statm: 112933 318 53 145 0 111809 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 451732

[startup+0.301795 s]
/proc/loadavg: 1.95 1.99 2.05 4/86 29802
/proc/meminfo: memFree=1681040/2055924 swapFree=4179644/4192956
[pid=29802] ppid=29800 vsize=451732 CPUtime=0.29
/proc/29802/stat : 29802 (Hybrid2) R 29800 29802 29765 0 -1 4194304 334 0 0 0 29 0 0 0 23 0 1 0 474453863 462573568 318 1992294400 134512640 135106774 4294956224 18446744073709551615 134524005 0 0 4096 0 0 0 0 17 1 0 0
/proc/29802/statm: 112933 318 53 145 0 111809 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 451732

[startup+0.701868 s]
/proc/loadavg: 1.95 1.99 2.05 4/86 29802
/proc/meminfo: memFree=1681040/2055924 swapFree=4179644/4192956
[pid=29802] ppid=29800 vsize=451732 CPUtime=0.69
/proc/29802/stat : 29802 (Hybrid2) R 29800 29802 29765 0 -1 4194304 334 0 0 0 69 0 0 0 25 0 1 0 474453863 462573568 318 1992294400 134512640 135106774 4294956224 18446744073709551615 134523896 0 0 4096 0 0 0 0 17 1 0 0
/proc/29802/statm: 112933 318 53 145 0 111809 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 451732

[startup+1.50201 s]
/proc/loadavg: 2.11 2.03 2.06 3/87 29803
/proc/meminfo: memFree=1679752/2055924 swapFree=4179644/4192956
[pid=29802] ppid=29800 vsize=451732 CPUtime=1.49
/proc/29802/stat : 29802 (Hybrid2) R 29800 29802 29765 0 -1 4194304 334 0 0 0 149 0 0 0 25 0 1 0 474453863 462573568 318 1992294400 134512640 135106774 4294956224 18446744073709551615 134523986 0 0 4096 0 0 0 0 17 1 0 0
/proc/29802/statm: 112933 318 53 145 0 111809 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 451732

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

[startup+1.90109 s]
/proc/loadavg: 2.11 2.03 2.06 3/87 29803
/proc/meminfo: memFree=1679752/2055924 swapFree=4179644/4192956
[pid=29802] ppid=29800 vsize=455632 CPUtime=1.89
/proc/29802/stat : 29802 (Hybrid2) R 29800 29802 29765 0 -1 4194304 385 0 0 0 189 0 0 0 25 0 1 0 474453863 466567168 369 1992294400 134512640 135106774 4294956224 18446744073709551615 134528683 0 0 4096 0 0 0 0 17 1 0 0
/proc/29802/statm: 113908 369 56 145 0 112784 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 455632

[startup+2.10212 s]
/proc/loadavg: 2.11 2.03 2.06 3/87 29803
/proc/meminfo: memFree=1679368/2055924 swapFree=4179644/4192956
[pid=29802] ppid=29800 vsize=455632 CPUtime=2.1
/proc/29802/stat : 29802 (Hybrid2) R 29800 29802 29765 0 -1 4194304 385 0 0 0 210 0 0 0 25 0 1 0 474453863 466567168 369 1992294400 134512640 135106774 4294956224 18446744073709551615 134528744 0 0 4096 0 0 0 0 17 1 0 0
/proc/29802/statm: 113908 369 56 145 0 112784 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 455632

[startup+2.20715 s]
/proc/loadavg: 2.11 2.03 2.06 3/87 29803
/proc/meminfo: memFree=1679368/2055924 swapFree=4179644/4192956
[pid=29802] ppid=29800 vsize=455632 CPUtime=2.2
/proc/29802/stat : 29802 (Hybrid2) R 29800 29802 29765 0 -1 4194304 385 0 0 0 220 0 0 0 25 0 1 0 474453863 466567168 369 1992294400 134512640 135106774 4294956224 18446744073709551615 134528512 0 0 4096 0 0 0 0 17 1 0 0
/proc/29802/statm: 113908 369 56 145 0 112784 0
Current children cumulated CPU time (s) 2.2
Current children cumulated vsize (KiB) 455632

Child status: 10
Real time (s): 2.26888
CPU time (s): 2.26565
CPU user time (s): 2.26366
CPU system time (s): 0.001999
CPU usage (%): 99.858
Max. virtual memory (cumulated for all children) (KiB): 455632

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.26365
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= 403
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= 5

runsolver used 0.006998 second user time and 0.014997 second system time

The end

Launcher Data 

Begin job on node83 at 2009-03-31 08:33:54
IDJOB=1523388
IDBENCH=70527
IDSOLVER=530
FILE ID=node83/1523388-1238481234
PBS_JOBID= 9061838
Free space on /tmp= 66508 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/7SAT/SATISFIABLE/75/unif-k7-r89-v75-c6675-S819692891-023.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523388-1238481234/watcher-1523388-1238481234 -o /tmp/evaluation-result-1523388-1238481234/solver-1523388-1238481234 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1523388-1238481234.cnf 852663810

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= f025101ee357b099f3b22dfcd8620ffb
RANDOM SEED=852663810

node83.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		: 3000.268
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		: 3000.268
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055924 kB
MemFree:       1681520 kB
Buffers:         66868 kB
Cached:         214616 kB
SwapCached:       7584 kB
Active:         173600 kB
Inactive:       126432 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1681520 kB
SwapTotal:     4192956 kB
SwapFree:      4179644 kB
Dirty:            4772 kB
Writeback:           0 kB
Mapped:          25924 kB
Slab:            58400 kB
Committed_AS:  1122640 kB
PageTables:       2680 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= 66500 MiB
End job on node83 at 2009-03-31 08:33:57