Trace number 1820874

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
MiniSAT 09z 2009-03-22UNSAT 0.8 0.802019

General information on the benchmark

NameAPPLICATIONS/bitverif/
minor/minor032.cnf
MD5SUM93c9f18c75548b864ec69c2789cae658
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.62
Satisfiable
(Un)Satisfiability was proved
Number of variables4210
Number of clauses12053
Sum of the clauses size28121
Maximum clause length3
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 28034
Number of clauses of size 34017
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.00	c Parsing...
0.00/0.01	c ==============================================================================
0.00/0.01	c |           |     ORIGINAL     |              LEARNT              |          |
0.00/0.01	c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
0.00/0.01	c ==============================================================================
0.00/0.01	c |         0 |   12051    28119 |    3615       0        0     nan |  0.000 % |
0.11/0.13	c |         0 |    5320    23368 |      --       0       --      -- |     --   | -6689/-4650
0.11/0.13	c ==============================================================================
0.11/0.13	c Result  :   #vars: 785   #clauses: 5320   #literals: 23368
0.11/0.13	c CPU time:   0.13 s
0.11/0.13	c ==============================================================================
0.11/0.14	c WARNING: for repeatability, setting FPU to use double precision
0.11/0.14	c Number of variables   : 785          
0.11/0.14	c Number of clauses     : 5320         
0.11/0.14	c Parsing time: 0.00         s
0.14/0.79	c restarts              : 45
0.14/0.79	c conflicts             : 12876          (19809 /sec)
0.14/0.79	c decisions             : 36662          (1.70 % random) (56403 /sec)
0.14/0.79	c propagations          : 595069         (915491 /sec)
0.14/0.79	c conflict literals     : 424716         (29.99 % deleted)
0.14/0.79	c Memory used           : 4.32 MB
0.14/0.79	c CPU time              : 0.65 s
0.14/0.79	UNSATISFIABLE
0.14/0.79	
0.14/0.79	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:503) (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w /tmp/evaluation-result-1820874-1242484282/watcher-1820874-1242484282 -o /tmp/evaluation-result-1820874-1242484282/solver-1820874-1242484282 -C 1200 -W 1800 -M 1800 SatELiteGTI HOME/instance-1820874-1242484282.cnf -random-seed=725813299 

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
Current StackSize limit: 8192 KiB


[startup+0 s]
/proc/loadavg: 0.83 0.98 0.99 3/93 30123
/proc/meminfo: memFree=1151360/2074464 swapFree=1951864/1959888
[pid=30123] ppid=30121 vsize=2416 CPUtime=0
/proc/30123/stat : 30123 (SatELiteGTI) S 30121 30123 20977 0 -1 4194304 366 644 0 0 0 0 0 0 20 0 1 0 1012929284 2473984 276 4294967295 134512640 135169312 3219607984 3219606520 3085410030 0 65536 4 65538 3222381614 0 0 17 2 0 0 0
/proc/30123/statm: 604 276 235 161 0 43 0
[pid=30127] ppid=30123 vsize=948 CPUtime=0
/proc/30127/stat : 30127 (SatELite_releas) R 30123 30123 20977 0 -1 4202496 112 0 0 0 0 0 0 0 18 0 1 0 1012929284 970752 48 4294967295 134512640 135223648 3219372400 3219371304 134736942 0 0 0 3 0 0 0 17 3 0 0 0
/proc/30127/statm: 238 54 44 174 0 63 0

[startup+0.114058 s]
/proc/loadavg: 0.83 0.98 0.99 3/93 30123
/proc/meminfo: memFree=1151360/2074464 swapFree=1951864/1959888
[pid=30123] ppid=30121 vsize=2416 CPUtime=0
/proc/30123/stat : 30123 (SatELiteGTI) S 30121 30123 20977 0 -1 4194304 366 644 0 0 0 0 0 0 20 0 1 0 1012929284 2473984 276 4294967295 134512640 135169312 3219607984 3219606520 3085410030 0 65536 4 65538 3222381614 0 0 17 2 0 0 0
/proc/30123/statm: 604 276 235 161 0 43 0
[pid=30127] ppid=30123 vsize=3352 CPUtime=0.11
/proc/30127/stat : 30127 (SatELite_releas) R 30123 30123 20977 0 -1 4202496 669 0 0 0 11 0 0 0 18 0 1 0 1012929284 3432448 605 4294967295 134512640 135223648 3219372400 3219370416 134586911 0 0 0 3 0 0 0 17 3 0 0 0
/proc/30127/statm: 838 605 73 174 0 663 0
Current children cumulated CPU time (s) 0.11
Current children cumulated vsize (KiB) 5768

[startup+0.219636 s]
/proc/loadavg: 0.83 0.98 0.99 3/93 30123
/proc/meminfo: memFree=1151360/2074464 swapFree=1951864/1959888
[pid=30123] ppid=30121 vsize=2420 CPUtime=0.14
/proc/30123/stat : 30123 (SatELiteGTI) S 30121 30123 20977 0 -1 4194304 383 1363 0 0 0 0 14 0 19 0 1 0 1012929284 2478080 277 4294967295 134512640 135169312 3219607984 3219604200 3085410030 0 65536 4 65538 3222381614 0 0 17 3 0 0 0
/proc/30123/statm: 605 277 235 161 0 44 0
Current children cumulated CPU time (s) 0.14
Current children cumulated vsize (KiB) 2420

[startup+0.319649 s]
/proc/loadavg: 0.83 0.98 0.99 3/93 30123
/proc/meminfo: memFree=1151360/2074464 swapFree=1951864/1959888
[pid=30123] ppid=30121 vsize=2420 CPUtime=0.14
/proc/30123/stat : 30123 (SatELiteGTI) S 30121 30123 20977 0 -1 4194304 383 1363 0 0 0 0 14 0 19 0 1 0 1012929284 2478080 277 4294967295 134512640 135169312 3219607984 3219604200 3085410030 0 65536 4 65538 3222381614 0 0 17 3 0 0 0
/proc/30123/statm: 605 277 235 161 0 44 0
Current children cumulated CPU time (s) 0.14
Current children cumulated vsize (KiB) 2420

[startup+0.719587 s]
/proc/loadavg: 0.83 0.98 0.99 3/93 30123
/proc/meminfo: memFree=1151360/2074464 swapFree=1951864/1959888
[pid=30123] ppid=30121 vsize=2420 CPUtime=0.14
/proc/30123/stat : 30123 (SatELiteGTI) S 30121 30123 20977 0 -1 4194304 383 1363 0 0 0 0 14 0 19 0 1 0 1012929284 2478080 277 4294967295 134512640 135169312 3219607984 3219604200 3085410030 0 65536 4 65538 3222381614 0 0 17 3 0 0 0
/proc/30123/statm: 605 277 235 161 0 44 0
Current children cumulated CPU time (s) 0.14
Current children cumulated vsize (KiB) 2420

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

[startup+0.719587 s]
/proc/loadavg: 0.83 0.98 0.99 3/93 30123
/proc/meminfo: memFree=1151360/2074464 swapFree=1951864/1959888
[pid=30123] ppid=30121 vsize=2420 CPUtime=0.14
/proc/30123/stat : 30123 (SatELiteGTI) S 30121 30123 20977 0 -1 4194304 383 1363 0 0 0 0 14 0 19 0 1 0 1012929284 2478080 277 4294967295 134512640 135169312 3219607984 3219604200 3085410030 0 65536 4 65538 3222381614 0 0 17 3 0 0 0
/proc/30123/statm: 605 277 235 161 0 44 0
Current children cumulated CPU time (s) 0.14
Current children cumulated vsize (KiB) 2420

Child status: 20
Real time (s): 0.802019
CPU time (s): 0.8
CPU user time (s): 0.79
CPU system time (s): 0.01
CPU usage (%): 99.7483
Max. virtual memory (cumulated for all children) (KiB): 5768

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.79
system time used= 0.01
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2838
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= 20
involuntary context switches= 6

runsolver used 0.01 second user time and 0 second system time

The end

Launcher Data 

Begin job on tipi10 at 2009-05-16 16:31:22
IDJOB=1820874
IDBENCH=70757
IDSOLVER=659
FILE ID=tipi10/1820874-1242484282
PBS_JOBID=
Free space on /tmp= 4320 MiB

SOLVER NAME= MiniSAT 09z 2009-03-22
BENCH NAME= SAT09/APPLICATIONS/bitverif/minor/minor032.cnf
COMMAND LINE= SatELiteGTI BENCHNAME -random-seed=RANDOMSEED
RUNSOLVER COMMAND LINE= runsolver --timestamp  -w /tmp/evaluation-result-1820874-1242484282/watcher-1820874-1242484282 -o /tmp/evaluation-result-1820874-1242484282/solver-1820874-1242484282 -C 1200 -W 1800 -M 1800  SatELiteGTI HOME/instance-1820874-1242484282.cnf -random-seed=725813299

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

MD5SUM BENCH= 93c9f18c75548b864ec69c2789cae658
RANDOM SEED= 725813299

Linux tipi10 2.6.18 #19 SMP Tue Jun 19 11:27:27 CEST 2007 i686 GNU/Linux

/proc/cpuinfo:
processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 33
model name	: Dual Core AMD Opteron(tm) Processor 265
stepping	: 2
cpu MHz		: 1808.367
cache size	: 1024 KB
physical id	: 0
siblings	: 2
core id		: 0
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy ts fid vid ttp
bogomips	: 3618.37

processor	: 1
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 33
model name	: Dual Core AMD Opteron(tm) Processor 265
stepping	: 2
cpu MHz		: 1808.367
cache size	: 1024 KB
physical id	: 0
siblings	: 2
core id		: 1
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy ts fid vid ttp
bogomips	: 3616.77

processor	: 2
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 33
model name	: Dual Core AMD Opteron(tm) Processor 265
stepping	: 2
cpu MHz		: 1808.367
cache size	: 1024 KB
physical id	: 1
siblings	: 2
core id		: 0
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy ts fid vid ttp
bogomips	: 3616.77

processor	: 3
vendor_id	: AuthenticAMD
cpu family	: 15
model		: 33
model name	: Dual Core AMD Opteron(tm) Processor 265
stepping	: 2
cpu MHz		: 1808.367
cache size	: 1024 KB
physical id	: 1
siblings	: 2
core id		: 1
cpu cores	: 2
fdiv_bug	: no
hlt_bug		: no
f00f_bug	: no
coma_bug	: no
fpu		: yes
fpu_exception	: yes
cpuid level	: 1
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni lahf_lm cmp_legacy ts fid vid ttp
bogomips	: 3616.77


/proc/meminfo:
MemTotal:      2074464 kB
MemFree:       1151732 kB
Buffers:         19620 kB
Cached:         797604 kB
SwapCached:       2724 kB
Active:         431192 kB
Inactive:       395900 kB
HighTotal:     1178688 kB
HighFree:       526276 kB
LowTotal:       895776 kB
LowFree:        625456 kB
SwapTotal:     1959888 kB
SwapFree:      1951864 kB
Dirty:            1908 kB
Writeback:           0 kB
AnonPages:        9092 kB
Mapped:           3156 kB
Slab:            87292 kB
PageTables:        592 kB
NFS_Unstable:        0 kB
Bounce:              0 kB
CommitLimit:   2997120 kB
Committed_AS:    90592 kB
VmallocTotal:   114680 kB
VmallocUsed:      1324 kB
VmallocChunk:   113264 kB

Free space on /tmp at the end= 4320 MiB
End job on tipi10 at 2009-05-16 16:31:23