Trace number 333117

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
Hybrid1 2007-02-08SAT 18.4022 18.4105

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-brn100.sat05-3765.reshuffled-07.cnf
MD5SUM0a1b9434c65125233161905ac395e7f3
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark2.34864
Satisfiable
(Un)Satisfiability was proved
Number of variables2901
Number of clauses18243
Sum of the clauses size130564
Maximum clause length13
Minimum clause length1
Number of clauses of size 128
Number of clauses of size 2401
Number of clauses of size 32345
Number of clauses of size 4462
Number of clauses of size 5637
Number of clauses of size over 514370

Solver Data (download as text)

18.39/18.40	c try 1 flip j 2617273
18.39/18.40	c A solution is found
18.39/18.40	s SATISFIABLE
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18.39/18.40	v 0 
18.39/18.40	c Done (mycputime is 0.002 seconds)

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node2/watcher-333117-1173502260 -o ROOT/results/node2/solver-333117-1173502260 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/333117-1173502260/Hybrid1 /tmp/evaluation/333117-1173502260/instance-333117-1173502260.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: 1.99 1.85 1.46 3/77 24484
/proc/meminfo: memFree=1629936/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=244720 CPUtime=0
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 91 0 0 0 0 0 0 0 18 0 1 0 370180936 250593280 75 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134588695 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 61180 75 39 103 0 60684 0

[startup+0.096286 s]
/proc/loadavg: 1.99 1.85 1.46 3/77 24484
/proc/meminfo: memFree=1629936/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=247092 CPUtime=0.09
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 771 0 0 0 9 0 0 0 18 0 1 0 370180936 253022208 753 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134523442 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 61773 753 40 103 0 61277 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 247092

[startup+0.101286 s]
/proc/loadavg: 1.99 1.85 1.46 3/77 24484
/proc/meminfo: memFree=1629936/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=247092 CPUtime=0.09
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 771 0 0 0 9 0 0 0 18 0 1 0 370180936 253022208 753 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134523643 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 61773 753 40 103 0 61277 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 247092

[startup+0.301307 s]
/proc/loadavg: 1.99 1.85 1.46 3/77 24484
/proc/meminfo: memFree=1629936/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=247092 CPUtime=0.29
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 771 0 0 0 29 0 0 0 19 0 1 0 370180936 253022208 753 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134523434 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 61773 753 40 103 0 61277 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 247092

[startup+0.701348 s]
/proc/loadavg: 1.99 1.85 1.46 3/77 24484
/proc/meminfo: memFree=1629936/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=247092 CPUtime=0.69
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 771 0 0 0 69 0 0 0 22 0 1 0 370180936 253022208 753 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134523503 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 61773 753 40 103 0 61277 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 247092

[startup+1.50143 s]
/proc/loadavg: 1.91 1.84 1.45 2/78 24485
/proc/meminfo: memFree=1626984/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=249172 CPUtime=1.49
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 1122 0 0 0 149 0 0 0 25 0 1 0 370180936 255152128 1102 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134553111 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 62293 1102 44 103 0 61797 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 249172

[startup+3.1016 s]
/proc/loadavg: 1.91 1.84 1.45 2/78 24485
/proc/meminfo: memFree=1625320/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=249172 CPUtime=3.09
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 1122 0 0 0 309 0 0 0 25 0 1 0 370180936 255152128 1102 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551200 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 62293 1102 44 103 0 61797 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 249172

[startup+6.30193 s]
/proc/loadavg: 1.84 1.83 1.45 2/78 24485
/proc/meminfo: memFree=1625064/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=249172 CPUtime=6.29
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 1122 0 0 0 629 0 0 0 25 0 1 0 370180936 255152128 1102 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551608 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 62293 1102 44 103 0 61797 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 249172

[startup+12.7026 s]
/proc/loadavg: 1.77 1.81 1.45 2/78 24485
/proc/meminfo: memFree=1625128/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=249172 CPUtime=12.69
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 1122 0 0 0 1269 0 0 0 25 0 1 0 370180936 255152128 1102 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551479 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 62293 1102 44 103 0 61797 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 249172

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

[startup+15.9019 s]
/proc/loadavg: 1.77 1.81 1.45 2/78 24485
/proc/meminfo: memFree=1625128/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=249172 CPUtime=15.89
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 1122 0 0 0 1589 0 0 0 25 0 1 0 370180936 255152128 1102 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134552538 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 62293 1102 44 103 0 61797 0
Current children cumulated CPU time (s) 15.89
Current children cumulated vsize (KiB) 249172

[startup+17.5011 s]
/proc/loadavg: 1.71 1.80 1.45 2/78 24485
/proc/meminfo: memFree=1625128/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=249172 CPUtime=17.49
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 1122 0 0 0 1749 0 0 0 25 0 1 0 370180936 255152128 1102 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134545189 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 62293 1102 44 103 0 61797 0
Current children cumulated CPU time (s) 17.49
Current children cumulated vsize (KiB) 249172

[startup+17.9011 s]
/proc/loadavg: 1.71 1.80 1.45 2/78 24485
/proc/meminfo: memFree=1625128/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=249172 CPUtime=17.89
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 1122 0 0 0 1789 0 0 0 25 0 1 0 370180936 255152128 1102 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551791 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 62293 1102 44 103 0 61797 0
Current children cumulated CPU time (s) 17.89
Current children cumulated vsize (KiB) 249172

[startup+18.3012 s]
/proc/loadavg: 1.71 1.80 1.45 2/78 24485
/proc/meminfo: memFree=1625128/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=249172 CPUtime=18.29
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 1122 0 0 0 1829 0 0 0 25 0 1 0 370180936 255152128 1102 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551599 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 62293 1102 44 103 0 61797 0
Current children cumulated CPU time (s) 18.29
Current children cumulated vsize (KiB) 249172

[startup+18.4012 s]
/proc/loadavg: 1.71 1.80 1.45 2/78 24485
/proc/meminfo: memFree=1625128/2055920 swapFree=4153164/4192956
[pid=24484] ppid=24482 vsize=249172 CPUtime=18.39
/proc/24484/stat : 24484 (Hybrid1) R 24482 24484 22548 0 -1 4194304 1122 0 0 0 1839 0 0 0 25 0 1 0 370180936 255152128 1102 18446744073709551615 134512640 134935932 4294956704 18446744073709551615 134551180 0 0 4096 0 0 0 0 17 1 0 0
/proc/24484/statm: 62293 1102 44 103 0 61797 0
Current children cumulated CPU time (s) 18.39
Current children cumulated vsize (KiB) 249172

Child status: 10
Real time (s): 18.4105
CPU time (s): 18.4022
CPU user time (s): 18.3992
CPU system time (s): 0.002999
CPU usage (%): 99.9547
Max. virtual memory (cumulated for all children) (KiB): 249172

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 18.3992
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= 1135
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= 11
involuntary context switches= 31

runsolver used 0.021996 second user time and 0.048992 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Sat Mar 10 04:51:00 UTC 2007

IDJOB= 333117
IDBENCH= 24596
IDSOLVER= 115
FILE ID= node2/333117-1173502260

PBS_JOBID= 4101109

Free space on /tmp= 66506 MiB

SOLVER NAME= Hybrid1 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/others/QG7a-gensys-brn100.sat05-3765.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/333117-1173502260/Hybrid1 /tmp/evaluation/333117-1173502260/instance-333117-1173502260.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-333117-1173502260 -o ROOT/results/node2/solver-333117-1173502260 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/333117-1173502260/Hybrid1 /tmp/evaluation/333117-1173502260/instance-333117-1173502260.cnf            

META MD5SUM SOLVER= 4ad8950502569bcbd9dc3ae819b6eefe
MD5SUM BENCH=  0a1b9434c65125233161905ac395e7f3

RANDOM SEED= 415284354

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.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		: 3000.247
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		: 3000.247
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:       1630344 kB
Buffers:         40880 kB
Cached:         307740 kB
SwapCached:       2328 kB
Active:         201980 kB
Inactive:       169320 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1630344 kB
SwapTotal:     4192956 kB
SwapFree:      4153164 kB
Dirty:            6820 kB
Writeback:           0 kB
Mapped:          30168 kB
Slab:            39744 kB
Committed_AS:  1622788 kB
PageTables:       1812 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= 66506 MiB

End job on node2 on Sat Mar 10 04:51:18 UTC 2007