Trace number 1736447

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 2.89756 2.89922

General information on the benchmark

NameCRAFTED/parity-games/
instance_n5_i6_pp_ci_ce.cnf
MD5SUM2cb95a73fc66a1c6328b2127a33b0a14
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.74873
Satisfiable
(Un)Satisfiability was proved
Number of variables4380
Number of clauses31980
Sum of the clauses size102772
Maximum clause length20
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 27508
Number of clauses of size 313398
Number of clauses of size 47973
Number of clauses of size 53006
Number of clauses of size over 595

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-1736447-1240811698.cnf
0.00/0.00	c parsed header 'p cnf 4380 31980'
0.09/0.12	c initialized 4380 variables
0.09/0.12	c found 31980 non trivial clauses
0.09/0.12	c
0.09/0.12	c random number generator seed 0
0.09/0.12	c 
0.09/0.12	c  seconds     variables   original    learned     agility
0.09/0.12	c         level        used      conflicts    limit          MB
0.09/0.12	c 
0.09/0.12	c s   0.1   0.0  4224   8.1 22690   102     0     0   0.0   1.1 
0.09/0.13	c 
0.09/0.13	c initial reduction limit 12236 clauses
0.09/0.13	c 
0.09/0.13	c +   0.1  27.6  4224  22.9 22690   202    90 13459   9.6   1.2 
0.09/0.13	c R   0.1  27.6  4224  22.9 22690   202    90 13459  10.6   1.2 
0.09/0.14	c +   0.1  31.6  4224  34.5 22690   352   238 14804  20.4   1.2 
0.09/0.15	c R   0.2  32.9  4224  38.5 22690   503   387 14804  16.4   1.2 
0.09/0.16	c +   0.2  31.9  4224  39.8 22690   577   461 16284  10.9   1.2 
0.09/0.19	c +   0.2  26.6  4224  46.0 22690   914   796 17912  11.3   1.2 
0.19/0.23	c R   0.2  23.4  4224  49.5 22690  1307  1184 17912  18.9   1.3 
0.19/0.24	c +   0.2  23.1  4224  49.9 22690  1419  1294 19703  12.9   1.3 
0.29/0.32	c +   0.3  25.3  4224  52.8 22690  2176  2033 21673  12.2   1.3 
0.39/0.47	c +   0.5  26.2  4224  55.7 22690  3311  3156 23840  12.4   1.4 
0.39/0.47	c R   0.5  26.2  4224  55.7 22690  3312  3157 23840  12.5   1.4 
0.69/0.70	c +   0.7  25.3  4224  64.5 22690  5013  4841 26224  14.7   1.6 
1.00/1.03	c s   1.0  25.5  4223  66.3 22685  7142  6957 26224  19.1   1.8 
1.00/1.05	c R   1.1  25.3  4223  66.3 22685  7242  7057 26224  17.6   1.9 
1.10/1.10	c R   1.1  24.9  4223  66.6 22685  7543  7357 26224  15.6   1.9 
1.10/1.11	c +   1.1  24.9  4223  66.6 22685  7566  7380 28846  11.2   1.9 
1.19/1.22	c R   1.2  24.3  4223  67.2 22685  8346  8154 28846  20.0   2.0 
1.59/1.60	c R   1.6  22.6  4223  67.3 22685 10350 10148 28846  14.4   2.2 
1.79/1.84	c +   1.8  22.2  4223  67.7 22685 11395 11189 31730  15.6   2.3 
2.59/2.67	c s   2.7  20.9  4211  68.9 21566 14069  9680 31730  11.3   2.1 
2.59/2.67	c 
2.59/2.67	c  seconds     variables   original    learned     agility
2.59/2.67	c         level        used      conflicts    limit          MB
2.59/2.67	c 
2.59/2.69	c R   2.7  20.9  4211  68.9 21566 14165  9774 31730  20.1   2.1 
2.69/2.76	c R   2.8  20.7  4211  68.9 21566 14467 10074 31730  18.5   2.1 
2.86/2.93	c 0   2.9  20.5  4150  68.9 21566 14994 10583 31730  18.5   2.2 
2.86/2.93	c 
2.86/2.93	c  seconds     variables   original    learned     agility
2.86/2.93	c         level        used      conflicts    limit          MB
2.86/2.93	c 
2.86/2.93	s UNSATISFIABLE
2.86/2.93	c
2.86/2.93	c 5 iterations
2.86/2.93	c 64 restarts
2.86/2.93	c 105 failed literals
2.86/2.93	c 14994 conflicts
2.86/2.93	c 31042 decisions
2.86/2.93	c 230 fixed variables
2.86/2.93	c 303709 learned literals
2.86/2.93	c 39.7% deleted literals
2.86/2.93	c 7885906 propagations
2.86/2.93	c 68.9% variables used
2.86/2.93	c 2.9 seconds in library
2.86/2.93	c 2.7 megaprops/second
2.86/2.93	c 3 simplifications
2.86/2.93	c 0 reductions
2.86/2.93	c 0.6 MB recycled
2.86/2.93	c 2.6 MB maximally allocated
2.86/2.93	c 2.9 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-1736447-1240811698/watcher-1736447-1240811698 -o /tmp/evaluation-result-1736447-1240811698/solver-1736447-1240811698 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1736447-1240811698.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: 1.99 1.96 1.69 3/64 31860
/proc/meminfo: memFree=1632960/2055920 swapFree=4180704/4192956
[pid=31860] ppid=31858 vsize=1224 CPUtime=0
/proc/31860/stat : 31860 (picosat) R 31858 31860 31604 0 -1 4194304 195 0 0 0 0 0 0 0 18 0 1 0 109203147 1253376 180 1992294400 134512640 135137933 4294956224 18446744073709551615 134683695 0 0 4096 0 0 0 0 17 1 0 0
/proc/31860/statm: 306 180 56 152 0 152 0

[startup+0.04454 s]
/proc/loadavg: 1.99 1.96 1.69 3/64 31860
/proc/meminfo: memFree=1632960/2055920 swapFree=4180704/4192956
[pid=31860] ppid=31858 vsize=2148 CPUtime=0.04
/proc/31860/stat : 31860 (picosat) R 31858 31860 31604 0 -1 4194304 426 0 0 0 4 0 0 0 18 0 1 0 109203147 2199552 411 1992294400 134512640 135137933 4294956224 18446744073709551615 134548659 0 0 4096 0 0 0 0 17 1 0 0
/proc/31860/statm: 537 411 61 152 0 383 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 2148

[startup+0.10155 s]
/proc/loadavg: 1.99 1.96 1.69 3/64 31860
/proc/meminfo: memFree=1632960/2055920 swapFree=4180704/4192956
[pid=31860] ppid=31858 vsize=2148 CPUtime=0.09
/proc/31860/stat : 31860 (picosat) R 31858 31860 31604 0 -1 4194304 427 0 0 0 9 0 0 0 18 0 1 0 109203147 2199552 412 1992294400 134512640 135137933 4294956224 18446744073709551615 134548654 0 0 4096 0 0 0 0 17 1 0 0
/proc/31860/statm: 537 412 61 152 0 383 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2148

[startup+0.30159 s]
/proc/loadavg: 1.99 1.96 1.69 3/64 31860
/proc/meminfo: memFree=1632960/2055920 swapFree=4180704/4192956
[pid=31860] ppid=31858 vsize=2280 CPUtime=0.29
/proc/31860/stat : 31860 (picosat) R 31858 31860 31604 0 -1 4194304 473 0 0 0 29 0 0 0 19 0 1 0 109203147 2334720 458 1992294400 134512640 135137933 4294956224 18446744073709551615 134548819 0 0 4096 0 0 0 0 17 1 0 0
/proc/31860/statm: 570 458 69 152 0 416 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2280

[startup+0.701668 s]
/proc/loadavg: 1.99 1.96 1.69 3/64 31860
/proc/meminfo: memFree=1632960/2055920 swapFree=4180704/4192956
[pid=31860] ppid=31858 vsize=2544 CPUtime=0.69
/proc/31860/stat : 31860 (picosat) R 31858 31860 31604 0 -1 4194304 551 0 0 0 69 0 0 0 23 0 1 0 109203147 2605056 536 1992294400 134512640 135137933 4294956224 18446744073709551615 134548819 0 0 4096 0 0 0 0 17 1 0 0
/proc/31860/statm: 636 536 69 152 0 482 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2544

[startup+1.50182 s]
/proc/loadavg: 1.99 1.96 1.69 2/65 31861
/proc/meminfo: memFree=1630776/2055920 swapFree=4180704/4192956
[pid=31860] ppid=31858 vsize=3228 CPUtime=1.49
/proc/31860/stat : 31860 (picosat) R 31858 31860 31604 0 -1 4194304 689 0 0 0 149 0 0 0 25 0 1 0 109203147 3305472 674 1992294400 134512640 135137933 4294956224 18446744073709551615 134548819 0 0 4096 0 0 0 0 17 1 0 0
/proc/31860/statm: 807 674 69 152 0 653 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 3228

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

[startup+2.30198 s]
/proc/loadavg: 1.91 1.94 1.68 2/65 31861
/proc/meminfo: memFree=1630072/2055920 swapFree=4180704/4192956
[pid=31860] ppid=31858 vsize=3492 CPUtime=2.29
/proc/31860/stat : 31860 (picosat) R 31858 31860 31604 0 -1 4194304 789 0 0 0 229 0 0 0 25 0 1 0 109203147 3575808 774 1992294400 134512640 135137933 4294956224 18446744073709551615 134548954 0 0 4096 0 0 0 0 17 1 0 0
/proc/31860/statm: 873 774 69 152 0 719 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 3492

[startup+2.70106 s]
/proc/loadavg: 1.91 1.94 1.68 2/65 31861
/proc/meminfo: memFree=1630072/2055920 swapFree=4180704/4192956
[pid=31860] ppid=31858 vsize=3624 CPUtime=2.69
/proc/31860/stat : 31860 (picosat) R 31858 31860 31604 0 -1 4194304 809 0 0 0 269 0 0 0 25 0 1 0 109203147 3710976 794 1992294400 134512640 135137933 4294956224 18446744073709551615 134527686 0 0 4096 0 0 0 0 17 1 0 0
/proc/31860/statm: 906 794 69 152 0 752 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 3624

[startup+2.84354 s]
/proc/loadavg: 1.91 1.94 1.68 2/65 31861
/proc/meminfo: memFree=1630072/2055920 swapFree=4180704/4192956
[pid=31860] ppid=31858 vsize=3624 CPUtime=2.86
/proc/31860/stat : 31860 (picosat) R 31858 31860 31604 0 -1 4194304 809 0 0 0 286 0 0 0 25 0 1 0 109203147 3710976 794 1992294400 134512640 135137933 4294956224 18446744073709551615 134548672 0 0 4096 0 0 0 0 17 1 0 0
/proc/31860/statm: -- couldn't open statm file --Current children cumulated CPU time (s) 2.86
Current children cumulated vsize (KiB) 3624

Child status: 20
Real time (s): 2.89922
CPU time (s): 2.89756
CPU user time (s): 2.89156
CPU system time (s): 0.005999
CPU usage (%): 99.9428
Max. virtual memory (cumulated for all children) (KiB): 3624

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.89156
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 811
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= 9

runsolver used 0.008998 second user time and 0.026995 second system time

The end

Launcher Data 

Begin job on node28 at 2009-04-27 07:54:58
IDJOB=1736447
IDBENCH=71626
IDSOLVER=506
FILE ID=node28/1736447-1240811698
PBS_JOBID= 9187418
Free space on /tmp= 66344 MiB

SOLVER NAME= picosat 913
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n5_i6_pp_ci_ce.cnf
COMMAND LINE= HOME/picosat BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1736447-1240811698/watcher-1736447-1240811698 -o /tmp/evaluation-result-1736447-1240811698/solver-1736447-1240811698 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1736447-1240811698.cnf

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

MD5SUM BENCH= 2cb95a73fc66a1c6328b2127a33b0a14
RANDOM SEED=37641914

node28.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		: 3000.261
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		: 3000.261
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:       1633376 kB
Buffers:         45968 kB
Cached:         297736 kB
SwapCached:       5476 kB
Active:          95068 kB
Inactive:       257244 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1633376 kB
SwapTotal:     4192956 kB
SwapFree:      4180704 kB
Dirty:            1300 kB
Writeback:           0 kB
Mapped:          14308 kB
Slab:            56036 kB
Committed_AS:   491388 kB
PageTables:       1420 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66340 MiB
End job on node28 at 2009-04-27 07:55:02