Trace number 1725678

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
HydraSAT-Flat 2009-03-22-FlatSAT 3.79142 3.79311

General information on the benchmark

Namecrafted/Medium/contest05/others/
QG7a-gensys-ukn001.sat05-3841.reshuffled-07.cnf
MD5SUM74af041eb51b172e799baf4bb7eaa52f
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1.38479
Satisfiable
(Un)Satisfiability was proved
Number of variables2737
Number of clauses18375
Sum of the clauses size129048
Maximum clause length13
Minimum clause length1
Number of clauses of size 149
Number of clauses of size 2491
Number of clauses of size 32419
Number of clauses of size 4526
Number of clauses of size 5691
Number of clauses of size over 514199

Solver Data 

3.69/3.79	
3.69/3.79	c decisions : 75670
3.69/3.79	c conflicts : 29937
3.69/3.79	c Memory limit 1620 MiB
3.69/3.79	s SATISFIABLE
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Verifier Data 

OK

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1725678-1240706147/watcher-1725678-1240706147 -o /tmp/evaluation-result-1725678-1240706147/solver-1725678-1240706147 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/hydrasat-flat HOME/instance-1725678-1240706147.cnf -rs 1651302626 -co memory_limit 1800 

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: 0.86 0.97 0.99 3/64 16726
/proc/meminfo: memFree=1872152/2055920 swapFree=4181728/4192956
[pid=16726] ppid=16724 vsize=1596 CPUtime=0
/proc/16726/stat : 16726 (hydrasat-flat) R 16724 16726 16661 0 -1 4194304 179 0 0 0 0 0 0 0 18 0 1 0 98642215 1634304 163 1992294400 134512640 135819388 4294956176 18446744073709551615 135210678 0 0 4096 1 0 0 0 17 1 0 0
/proc/16726/statm: 399 163 119 319 0 77 0

[startup+0.0499051 s]
/proc/loadavg: 0.86 0.97 0.99 3/64 16726
/proc/meminfo: memFree=1872152/2055920 swapFree=4181728/4192956
[pid=16726] ppid=16724 vsize=2784 CPUtime=0.04
/proc/16726/stat : 16726 (hydrasat-flat) R 16724 16726 16661 0 -1 4194304 514 0 0 0 4 0 0 0 18 0 1 0 98642215 2850816 498 1992294400 134512640 135819388 4294956176 18446744073709551615 135210678 0 0 4096 1 0 0 0 17 1 0 0
/proc/16726/statm: 696 498 125 319 0 374 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2784

[startup+0.101907 s]
/proc/loadavg: 0.86 0.97 0.99 3/64 16726
/proc/meminfo: memFree=1872152/2055920 swapFree=4181728/4192956
[pid=16726] ppid=16724 vsize=3772 CPUtime=0.09
/proc/16726/stat : 16726 (hydrasat-flat) R 16724 16726 16661 0 -1 4194304 729 0 0 0 9 0 0 0 18 0 1 0 98642215 3862528 713 1992294400 134512640 135819388 4294956176 18446744073709551615 134681591 0 0 4096 1 0 0 0 17 1 0 0
/proc/16726/statm: 943 713 127 319 0 621 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3772

[startup+0.30192 s]
/proc/loadavg: 0.86 0.97 0.99 3/64 16726
/proc/meminfo: memFree=1872152/2055920 swapFree=4181728/4192956
[pid=16726] ppid=16724 vsize=4180 CPUtime=0.29
/proc/16726/stat : 16726 (hydrasat-flat) R 16724 16726 16661 0 -1 4194304 859 0 0 0 29 0 0 0 19 0 1 0 98642215 4280320 842 1992294400 134512640 135819388 4294956176 18446744073709551615 134617547 0 0 4096 1 0 0 0 17 1 0 0
/proc/16726/statm: 1045 842 147 319 0 723 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 4180

[startup+0.701947 s]
/proc/loadavg: 0.86 0.97 0.99 3/64 16726
/proc/meminfo: memFree=1872152/2055920 swapFree=4181728/4192956
[pid=16726] ppid=16724 vsize=4444 CPUtime=0.69
/proc/16726/stat : 16726 (hydrasat-flat) R 16724 16726 16661 0 -1 4194304 930 0 0 0 69 0 0 0 22 0 1 0 98642215 4550656 913 1992294400 134512640 135819388 4294956176 18446744073709551615 135207034 0 0 4096 1 0 0 0 17 1 0 0
/proc/16726/statm: 1111 913 147 319 0 789 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 4444

[startup+1.502 s]
/proc/loadavg: 0.86 0.97 0.99 2/65 16727
/proc/meminfo: memFree=1868944/2055920 swapFree=4181728/4192956
[pid=16726] ppid=16724 vsize=4832 CPUtime=1.49
/proc/16726/stat : 16726 (hydrasat-flat) R 16724 16726 16661 0 -1 4194304 1010 0 0 0 149 0 0 0 25 0 1 0 98642215 4947968 993 1992294400 134512640 135819388 4294956176 18446744073709551615 134617150 0 0 4096 1 0 0 0 17 1 0 0
/proc/16726/statm: 1208 993 147 319 0 886 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4832

[startup+3.1011 s]
/proc/loadavg: 0.86 0.97 0.99 2/65 16727
/proc/meminfo: memFree=1868368/2055920 swapFree=4181728/4192956
[pid=16726] ppid=16724 vsize=5380 CPUtime=3.09
/proc/16726/stat : 16726 (hydrasat-flat) R 16724 16726 16661 0 -1 4194304 1150 0 0 0 309 0 0 0 25 0 1 0 98642215 5509120 1133 1992294400 134512640 135819388 4294956176 18446744073709551615 134603068 0 0 4096 1 0 0 0 17 1 0 0
/proc/16726/statm: 1345 1133 147 319 0 1023 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 5380

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

[startup+3.50113 s]
/proc/loadavg: 0.86 0.97 0.99 2/65 16727
/proc/meminfo: memFree=1867984/2055920 swapFree=4181728/4192956
[pid=16726] ppid=16724 vsize=5508 CPUtime=3.49
/proc/16726/stat : 16726 (hydrasat-flat) R 16724 16726 16661 0 -1 4194304 1182 0 0 0 349 0 0 0 25 0 1 0 98642215 5640192 1165 1992294400 134512640 135819388 4294956176 18446744073709551615 135204836 0 0 4096 1 0 0 0 17 1 0 0
/proc/16726/statm: 1377 1165 147 319 0 1055 0
Current children cumulated CPU time (s) 3.49
Current children cumulated vsize (KiB) 5508

[startup+3.70115 s]
/proc/loadavg: 0.86 0.97 0.99 2/65 16727
/proc/meminfo: memFree=1867984/2055920 swapFree=4181728/4192956
[pid=16726] ppid=16724 vsize=5636 CPUtime=3.69
/proc/16726/stat : 16726 (hydrasat-flat) R 16724 16726 16661 0 -1 4194304 1199 0 0 0 369 0 0 0 25 0 1 0 98642215 5771264 1182 1992294400 134512640 135819388 4294956176 18446744073709551615 134617218 0 0 4096 1 0 0 0 17 1 0 0
/proc/16726/statm: 1409 1182 147 319 0 1087 0
Current children cumulated CPU time (s) 3.69
Current children cumulated vsize (KiB) 5636

Child status: 10
Real time (s): 3.79311
CPU time (s): 3.79142
CPU user time (s): 3.78143
CPU system time (s): 0.009998
CPU usage (%): 99.9554
Max. virtual memory (cumulated for all children) (KiB): 5636

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.78143
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1226
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= 8

runsolver used 0.002999 second user time and 0.017997 second system time

The end

Launcher Data 

Begin job on node52 at 2009-04-26 02:35:47
IDJOB=1725678
IDBENCH=24595
IDSOLVER=519
FILE ID=node52/1725678-1240706147
PBS_JOBID= 9186822
Free space on /tmp= 66232 MiB

SOLVER NAME= HydraSAT-Flat 2009-03-22-Flat
BENCH NAME= SAT07/crafted/Medium/contest05/others/QG7a-gensys-ukn001.sat05-3841.reshuffled-07.cnf
COMMAND LINE= DIR/hydrasat-flat BENCHNAME -rs RANDOMSEED -co memory_limit MEMLIMIT
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1725678-1240706147/watcher-1725678-1240706147 -o /tmp/evaluation-result-1725678-1240706147/solver-1725678-1240706147 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/hydrasat-flat HOME/instance-1725678-1240706147.cnf -rs 1651302626 -co memory_limit 1800

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

MD5SUM BENCH= 74af041eb51b172e799baf4bb7eaa52f
RANDOM SEED=1651302626

node52.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		: 3000.214
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		: 3000.214
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:       1872568 kB
Buffers:         12912 kB
Cached:         114512 kB
SwapCached:       5652 kB
Active:          35884 kB
Inactive:        99960 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1872568 kB
SwapTotal:     4192956 kB
SwapFree:      4181728 kB
Dirty:            2276 kB
Writeback:           0 kB
Mapped:          13720 kB
Slab:            33404 kB
Committed_AS:   373740 kB
PageTables:       1476 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= 66232 MiB
End job on node52 at 2009-04-26 02:35:51