Trace number 1723719

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
picosat 913UNSAT 1.86571 1.86612

General information on the benchmark

Namemanol-pipe-g6bi.cnf
MD5SUM276c05fafaa0b870834db9baaef6afca
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark0.883865
Satisfiable
(Un)Satisfiability was proved
Number of variables23891
Number of clauses69895
Sum of the clauses size163087
Maximum clause length3
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 246596
Number of clauses of size 323298
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 PicoSAT SAT Solver Version 913
0.00/0.00	c Copyright (c) 2006 - 2009 Armin Biere JKU Linz
0.00/0.00	c gcc -Wall -Wextra -m32 -static -DNDEBUG -O3 -fomit-frame-pointer -finline-limit=1000000
0.00/0.00	c
0.00/0.00	c parsing HOME/instance-1723719-1240688382.cnf
0.00/0.00	c parsed header 'p cnf 23891 69895'
0.39/0.46	c initialized 23891 variables
0.39/0.46	c found 69895 non trivial clauses
0.39/0.46	c
0.39/0.46	c random number generator seed 0
0.39/0.46	c 
0.39/0.46	c  seconds     variables   original    learned     agility
0.39/0.46	c         level        used      conflicts    limit          MB
0.39/0.46	c 
0.39/0.46	c s   0.5   0.0 23395   3.3 22832    37     0     0   0.0   2.7 
0.39/0.49	c 
0.39/0.49	c initial reduction limit 11649 clauses
0.39/0.49	c 
0.39/0.49	c +   0.5 297.6 23395  11.7 22832   137   100 12813  11.9   2.8 
0.39/0.49	c R   0.5 297.6 23395  11.7 22832   137   100 12813  12.1   2.8 
0.49/0.51	c +   0.5 178.5 23395  15.3 22832   287   245 14094   6.9   2.8 
0.49/0.54	c R   0.5 153.0 23395  18.5 22832   438   385 14094  11.2   2.8 
0.49/0.55	c +   0.6 153.1 23395  21.0 22832   512   459 15503  12.1   2.8 
0.49/0.59	c R   0.6 135.3 23377  22.6 22832   694   635 15503   9.8   2.8 
0.59/0.63	c +   0.6 130.9 23377  25.3 22832   849   787 17053   6.9   2.9 
0.59/0.65	c s   0.7 130.0 23377  26.2 22823   951   889 17053  14.8   2.9 
0.59/0.66	c R   0.7 129.6 23377  26.3 22823   996   934 17053  12.3   2.9 
0.69/0.74	c +   0.7 126.7 23377  28.7 22823  1354  1285 18758   7.7   2.9 
0.69/0.80	c R   0.8 113.8 23377  29.7 22823  1800  1722 18758  11.7   2.9 
0.79/0.85	c +   0.9 108.4 23377  32.0 22823  2111  2022 20633  12.9   3.0 
1.00/1.03	c +   1.0 110.0 23377  34.6 22823  3246  3139 22696  20.8   3.0 
1.00/1.09	c R   1.1 107.4 23377  35.7 22823  3803  3692 22696  12.5   3.1 
1.19/1.26	c +   1.3  98.5 23377  36.8 22823  4948  4814 24965  12.7   3.2 
1.49/1.52	c +   1.5  89.2 23377  37.0 22823  7501  7355 27461  15.6   3.4 
1.59/1.62	c R   1.6  86.2 23377  37.0 22823  8623  8475 27461  14.0   3.6 
1.69/1.70	c s   1.7  84.4 23372  37.0 22819  9261  9074 27461   5.4   3.6 
1.69/1.71	c R   1.7  84.2 23372  37.0 22819  9361  9173 27461   8.6   3.6 
1.69/1.73	c R   1.7  83.6 23371  37.0 22819  9558  9364 27461  16.9   3.6 
1.69/1.73	c 
1.69/1.73	c  seconds     variables   original    learned     agility
1.69/1.73	c         level        used      conflicts    limit          MB
1.69/1.73	c 
1.69/1.75	c R   1.8  83.0 23370  37.1 22819  9725  9523 27461  13.2   3.7 
1.69/1.78	c R   1.8  82.1 23370  37.1 22819 10030  9825 27461  15.5   3.7 
1.79/1.85	c R   1.9  80.6 23138  37.2 22819 10578 10360 27461  16.4   3.7 
1.79/1.85	c 0   1.9  80.4 22854  37.7 22819 10666 10445 27461  15.1   3.7 
1.79/1.86	c 
1.79/1.86	c  seconds     variables   original    learned     agility
1.79/1.86	c         level        used      conflicts    limit          MB
1.79/1.86	c 
1.79/1.86	s UNSATISFIABLE
1.79/1.86	c
1.79/1.86	c 5 iterations
1.79/1.86	c 49 restarts
1.79/1.86	c 37 failed literals
1.79/1.86	c 10666 conflicts
1.79/1.86	c 45128 decisions
1.79/1.86	c 1037 fixed variables
1.79/1.86	c 173961 learned literals
1.79/1.86	c 35.1% deleted literals
1.79/1.86	c 8374787 propagations
1.79/1.86	c 37.7% variables used
1.79/1.86	c 1.9 seconds in library
1.79/1.86	c 4.5 megaprops/second
1.79/1.86	c 3 simplifications
1.79/1.86	c 0 reductions
1.79/1.86	c 0.0 MB recycled
1.79/1.86	c 3.7 MB maximally allocated
1.79/1.86	c 1.9 seconds total run time

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1723719-1240688382/watcher-1723719-1240688382 -o /tmp/evaluation-result-1723719-1240688382/solver-1723719-1240688382 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1723719-1240688382.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): 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: 1.00 1.00 1.00 3/64 2582
/proc/meminfo: memFree=1090904/2055920 swapFree=4192812/4192956
[pid=2582] ppid=2580 vsize=2228 CPUtime=0
/proc/2582/stat : 2582 (picosat) R 2580 2582 2132 0 -1 4194304 460 0 0 0 0 0 0 0 20 0 1 0 96867080 2281472 445 1992294400 134512640 135137933 4294956224 18446744073709551615 134689438 0 0 4096 0 0 0 0 17 1 0 0
/proc/2582/statm: 557 445 56 152 0 403 0

[startup+0.0935619 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 2582
/proc/meminfo: memFree=1090904/2055920 swapFree=4192812/4192956
[pid=2582] ppid=2580 vsize=3812 CPUtime=0.09
/proc/2582/stat : 2582 (picosat) R 2580 2582 2132 0 -1 4194304 833 0 0 0 9 0 0 0 20 0 1 0 96867080 3903488 818 1992294400 134512640 135137933 4294956224 18446744073709551615 134560189 0 0 4096 0 0 0 0 17 1 0 0
/proc/2582/statm: 953 818 61 152 0 799 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3812

[startup+0.102561 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 2582
/proc/meminfo: memFree=1090904/2055920 swapFree=4192812/4192956
[pid=2582] ppid=2580 vsize=3812 CPUtime=0.09
/proc/2582/stat : 2582 (picosat) R 2580 2582 2132 0 -1 4194304 833 0 0 0 9 0 0 0 20 0 1 0 96867080 3903488 818 1992294400 134512640 135137933 4294956224 18446744073709551615 134529259 0 0 4096 0 0 0 0 17 1 0 0
/proc/2582/statm: 953 818 61 152 0 799 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 3812

[startup+0.302586 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 2582
/proc/meminfo: memFree=1090904/2055920 swapFree=4192812/4192956
[pid=2582] ppid=2580 vsize=3812 CPUtime=0.29
/proc/2582/stat : 2582 (picosat) R 2580 2582 2132 0 -1 4194304 852 0 0 0 29 0 0 0 22 0 1 0 96867080 3903488 837 1992294400 134512640 135137933 4294956224 18446744073709551615 134528158 0 0 4096 0 0 0 0 17 1 0 0
/proc/2582/statm: 953 837 61 152 0 799 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3812

[startup+0.702632 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 2582
/proc/meminfo: memFree=1090904/2055920 swapFree=4192812/4192956
[pid=2582] ppid=2580 vsize=3972 CPUtime=0.69
/proc/2582/stat : 2582 (picosat) R 2580 2582 2132 0 -1 4194304 896 0 0 0 69 0 0 0 25 0 1 0 96867080 4067328 881 1992294400 134512640 135137933 4294956224 18446744073709551615 134528074 0 0 4096 0 0 0 0 17 1 0 0
/proc/2582/statm: 993 881 69 152 0 839 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 3972

[startup+1.50173 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2583
/proc/meminfo: memFree=1087504/2055920 swapFree=4192812/4192956
[pid=2582] ppid=2580 vsize=4632 CPUtime=1.49
/proc/2582/stat : 2582 (picosat) R 2580 2582 2132 0 -1 4194304 1044 0 0 0 149 0 0 0 25 0 1 0 96867080 4743168 1029 1992294400 134512640 135137933 4294956224 18446744073709551615 134548819 0 0 4096 0 0 0 0 17 1 0 0
/proc/2582/statm: 1158 1029 69 152 0 1004 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 4632

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

[startup+1.70175 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2583
/proc/meminfo: memFree=1087504/2055920 swapFree=4192812/4192956
[pid=2582] ppid=2580 vsize=4816 CPUtime=1.69
/proc/2582/stat : 2582 (picosat) R 2580 2582 2132 0 -1 4194304 1092 0 0 0 169 0 0 0 25 0 1 0 96867080 4931584 1077 1992294400 134512640 135137933 4294956224 18446744073709551615 134525058 0 0 4096 0 0 0 0 17 1 0 0
/proc/2582/statm: 1204 1077 69 152 0 1050 0
Current children cumulated CPU time (s) 1.69
Current children cumulated vsize (KiB) 4816

[startup+1.80176 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 2583
/proc/meminfo: memFree=1087504/2055920 swapFree=4192812/4192956
[pid=2582] ppid=2580 vsize=4948 CPUtime=1.79
/proc/2582/stat : 2582 (picosat) R 2580 2582 2132 0 -1 4194304 1110 0 0 0 179 0 0 0 25 0 1 0 96867080 5066752 1095 1992294400 134512640 135137933 4294956224 18446744073709551615 134548949 0 0 4096 0 0 0 0 17 1 0 0
/proc/2582/statm: 1237 1095 69 152 0 1083 0
Current children cumulated CPU time (s) 1.79
Current children cumulated vsize (KiB) 4948

Child status: 20
Real time (s): 1.86612
CPU time (s): 1.86571
CPU user time (s): 1.85772
CPU system time (s): 0.007998
CPU usage (%): 99.9785
Max. virtual memory (cumulated for all children) (KiB): 4948

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.85772
system time used= 0.007998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1123
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= 3

runsolver used 0.005999 second user time and 0.008998 second system time

The end

Launcher Data 

Begin job on node75 at 2009-04-25 21:39:42
IDJOB=1723719
IDBENCH=71734
IDSOLVER=506
FILE ID=node75/1723719-1240688382
PBS_JOBID= 9186683
Free space on /tmp= 66432 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT_RACE06/manol-pipe-g6bi.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1723719-1240688382/watcher-1723719-1240688382 -o /tmp/evaluation-result-1723719-1240688382/solver-1723719-1240688382 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1723719-1240688382.cnf

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

MD5SUM BENCH= 276c05fafaa0b870834db9baaef6afca
RANDOM SEED=1343912905

node75.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		: 3000.213
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		: 3000.213
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:      2055920 kB
MemFree:       1091384 kB
Buffers:         86016 kB
Cached:         785192 kB
SwapCached:        144 kB
Active:         130764 kB
Inactive:       754520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1091384 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1952 kB
Writeback:           0 kB
Mapped:          23696 kB
Slab:            65184 kB
Committed_AS:   229552 kB
PageTables:       1416 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= 66428 MiB
End job on node75 at 2009-04-25 21:39:44