Trace number 1523103

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 0.149976 0.15056

General information on the benchmark

NameRANDOM/MEDIUM/5SAT/SATISFIABLE/90/
unif-k5-r21.3-v90-c1917-S1040456712-073.cnf
MD5SUMc089a210f28b730c7ed75b9093204955
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.036994
Satisfiable
(Un)Satisfiability was proved
Number of variables90
Number of clauses1917
Sum of the clauses size9585
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 51917
Number of clauses of size over 50

Solver Data 

0.09/0.15	c try 1 flip j 24174
0.09/0.15	c A solution is found
0.09/0.15	s SATISFIABLE
0.09/0.15	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 
0.09/0.15	v 0 
0.09/0.15	c Done (mycputime is 0.080 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-1523103-1238455158/watcher-1523103-1238455158 -o /tmp/evaluation-result-1523103-1238455158/solver-1523103-1238455158 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/Hybrid2 HOME/instance-1523103-1238455158.cnf 1690148837 

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: 0.84 0.94 0.98 3/64 22182
/proc/meminfo: memFree=1187024/2055920 swapFree=4178880/4192956
[pid=22182] ppid=22180 vsize=451072 CPUtime=0
/proc/22182/stat : 22182 (Hybrid2) R 22180 22182 22145 0 -1 4194304 150 0 0 0 0 0 0 0 18 0 1 0 1118181650 461897728 134 1992294400 134512640 135106774 4294956224 18446744073709551615 134524090 0 0 4096 0 0 0 0 17 1 0 0
/proc/22182/statm: 112768 134 53 145 0 111644 0

[startup+0.0750171 s]
/proc/loadavg: 0.84 0.94 0.98 3/64 22182
/proc/meminfo: memFree=1187024/2055920 swapFree=4178880/4192956
[pid=22182] ppid=22180 vsize=454972 CPUtime=0.07
/proc/22182/stat : 22182 (Hybrid2) R 22180 22182 22145 0 -1 4194304 190 0 0 0 7 0 0 0 18 0 1 0 1118181650 465891328 174 1992294400 134512640 135106774 4294956224 18446744073709551615 134528484 0 0 4096 0 0 0 0 17 1 0 0
/proc/22182/statm: 113743 174 56 145 0 112619 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 454972

[startup+0.101019 s]
/proc/loadavg: 0.84 0.94 0.98 3/64 22182
/proc/meminfo: memFree=1187024/2055920 swapFree=4178880/4192956
[pid=22182] ppid=22180 vsize=454972 CPUtime=0.09
/proc/22182/stat : 22182 (Hybrid2) R 22180 22182 22145 0 -1 4194304 190 0 0 0 9 0 0 0 18 0 1 0 1118181650 465891328 174 1992294400 134512640 135106774 4294956224 18446744073709551615 134528519 0 0 4096 0 0 0 0 17 1 0 0
/proc/22182/statm: 113743 174 56 145 0 112619 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 454972

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

Child status: 10
Real time (s): 0.15056
CPU time (s): 0.149976
CPU user time (s): 0.148977
CPU system time (s): 0.000999
CPU usage (%): 99.6122
Max. virtual memory (cumulated for all children) (KiB): 454972

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.148977
system time used= 0.000999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 209
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= 0

runsolver used 0.002999 second user time and 0.006998 second system time

The end

Launcher Data 

Begin job on node21 at 2009-03-31 01:19:18
IDJOB=1523103
IDBENCH=70432
IDSOLVER=530
FILE ID=node21/1523103-1238455158
PBS_JOBID= 9061731
Free space on /tmp= 66460 MiB

SOLVER NAME= Hybrid2 2009-03-22
BENCH NAME= SAT09/RANDOM/MEDIUM/5SAT/SATISFIABLE/90/unif-k5-r21.3-v90-c1917-S1040456712-073.cnf
COMMAND LINE= HOME/Hybrid2 BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1523103-1238455158/watcher-1523103-1238455158 -o /tmp/evaluation-result-1523103-1238455158/solver-1523103-1238455158 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/Hybrid2 HOME/instance-1523103-1238455158.cnf 1690148837

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

MD5SUM BENCH= c089a210f28b730c7ed75b9093204955
RANDOM SEED=1690148837

node21.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		: 3000.259
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		: 3000.259
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:       1187504 kB
Buffers:        102420 kB
Cached:         665012 kB
SwapCached:       7836 kB
Active:         177136 kB
Inactive:       599664 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1187504 kB
SwapTotal:     4192956 kB
SwapFree:      4178880 kB
Dirty:            4796 kB
Writeback:           0 kB
Mapped:          14944 kB
Slab:            77680 kB
Committed_AS:  3058548 kB
PageTables:       1380 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= 66456 MiB
End job on node21 at 2009-03-31 01:19:19