Trace number 1824766

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
SAT07 reference solver: picosat 535UNSAT 75.4885 75.5221

General information on the benchmark

Nameindustrial/anbulagan/
medium-unsat/total-5-11-u.cnf
MD5SUM770fa9cd880a43d98e936f33f4e86d7a
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark16.4705
Satisfiable
(Un)Satisfiability was proved
Number of variables156980
Number of clauses696581
Sum of the clauses size1582352
Maximum clause length10
Minimum clause length1
Number of clauses of size 113310
Number of clauses of size 2570471
Number of clauses of size 382900
Number of clauses of size 43320
Number of clauses of size 513280
Number of clauses of size over 513300

Solver Data 

75.46/75.51	s UNSATISFIABLE

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-1824766-1242479417/watcher-1824766-1242479417 -o /tmp/evaluation-result-1824766-1242479417/solver-1824766-1242479417 -C 10000 -W 12000 -M 1800 --output-limit 1,15 HOME/picosat HOME/instance-1824766-1242479417.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 10000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 10030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 12000 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: 0.91 0.97 0.91 3/64 31535
/proc/meminfo: memFree=570336/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=728 CPUtime=0
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 95 0 0 0 0 0 0 0 18 0 1 0 275975066 745472 81 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 182 82 40 102 0 77 0

[startup+0.065143 s]
/proc/loadavg: 0.91 0.97 0.91 3/64 31535
/proc/meminfo: memFree=570336/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=2664 CPUtime=0.05
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 451 0 0 0 3 2 0 0 18 0 1 0 275975066 2727936 428 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 666 428 40 102 0 561 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 2664

[startup+0.101146 s]
/proc/loadavg: 0.91 0.97 0.91 3/64 31535
/proc/meminfo: memFree=570336/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=2796 CPUtime=0.09
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 458 0 0 0 5 4 0 0 18 0 1 0 275975066 2863104 435 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 699 435 40 102 0 594 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2796

[startup+0.30117 s]
/proc/loadavg: 0.91 0.97 0.91 3/64 31535
/proc/meminfo: memFree=570336/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=3192 CPUtime=0.29
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 579 0 0 0 14 15 0 0 19 0 1 0 275975066 3268608 556 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 798 556 40 102 0 693 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 3192

[startup+0.701218 s]
/proc/loadavg: 0.91 0.97 0.91 3/64 31535
/proc/meminfo: memFree=570336/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=10532 CPUtime=0.69
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 2094 0 0 0 32 37 0 0 22 0 1 0 275975066 10784768 2071 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 2633 2071 40 102 0 2528 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 10532

[startup+1.50131 s]
/proc/loadavg: 0.91 0.97 0.91 2/65 31536
/proc/meminfo: memFree=558744/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=20052 CPUtime=1.49
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 3155 0 0 0 67 82 0 0 25 0 1 0 275975066 20533248 3132 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 5013 3132 40 102 0 4908 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 20052

[startup+3.1015 s]
/proc/loadavg: 0.91 0.97 0.91 2/65 31536
/proc/meminfo: memFree=556440/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=24140 CPUtime=3.09
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 4172 0 0 0 139 170 0 0 25 0 1 0 275975066 24719360 4149 1992294400 134512640 134931368 4294956240 18446744073709551615 134605937 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 6035 4149 40 102 0 5930 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 24140

[startup+6.30189 s]
/proc/loadavg: 0.92 0.97 0.91 2/65 31536
/proc/meminfo: memFree=547416/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=33092 CPUtime=6.29
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 5786 0 0 0 349 280 0 0 25 0 1 0 275975066 33886208 5736 1992294400 134512640 134931368 4294956240 18446744073709551615 134522740 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 8273 5736 48 102 0 8168 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 33092

[startup+12.7016 s]
/proc/loadavg: 0.93 0.97 0.91 2/65 31536
/proc/meminfo: memFree=547288/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=33092 CPUtime=12.69
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 5795 0 0 0 989 280 0 0 25 0 1 0 275975066 33886208 5745 1992294400 134512640 134931368 4294956240 18446744073709551615 134525606 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 8273 5745 48 102 0 8168 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 33092

[startup+25.5012 s]
/proc/loadavg: 1.02 0.99 0.92 2/65 31536
/proc/meminfo: memFree=547352/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=33092 CPUtime=25.48
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 5795 0 0 0 2268 280 0 0 25 0 1 0 275975066 33886208 5745 1992294400 134512640 134931368 4294956240 18446744073709551615 134525754 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 8273 5745 48 102 0 8168 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 33092

[startup+51.1012 s]
/proc/loadavg: 1.01 0.99 0.92 2/65 31536
/proc/meminfo: memFree=547416/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=33092 CPUtime=51.06
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 5795 0 0 0 4826 280 0 0 25 0 1 0 275975066 33886208 5745 1992294400 134512640 134931368 4294956240 18446744073709551615 134525941 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 8273 5745 48 102 0 8168 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 33092

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

[startup+63.9017 s]
/proc/loadavg: 1.09 1.00 0.93 2/65 31536
/proc/meminfo: memFree=547224/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=33224 CPUtime=63.87
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 5850 0 0 0 6106 281 0 0 25 0 1 0 275975066 34021376 5800 1992294400 134512640 134931368 4294956240 18446744073709551615 134522823 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 8306 5800 48 102 0 8201 0
Current children cumulated CPU time (s) 63.87
Current children cumulated vsize (KiB) 33224

[startup+70.3015 s]
/proc/loadavg: 1.08 1.00 0.93 2/65 31536
/proc/meminfo: memFree=547032/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=33488 CPUtime=70.27
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 5910 0 0 0 6746 281 0 0 25 0 1 0 275975066 34291712 5860 1992294400 134512640 134931368 4294956240 18446744073709551615 134522825 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 8372 5860 48 102 0 8267 0
Current children cumulated CPU time (s) 70.27
Current children cumulated vsize (KiB) 33488

[startup+73.5019 s]
/proc/loadavg: 1.08 1.00 0.93 2/65 31536
/proc/meminfo: memFree=546968/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=33620 CPUtime=73.46
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 5934 0 0 0 7065 281 0 0 25 0 1 0 275975066 34426880 5884 1992294400 134512640 134931368 4294956240 18446744073709551615 134529988 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 8405 5884 48 102 0 8300 0
Current children cumulated CPU time (s) 73.46
Current children cumulated vsize (KiB) 33620

[startup+74.302 s]
/proc/loadavg: 1.08 1.00 0.93 2/65 31536
/proc/meminfo: memFree=546968/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=33620 CPUtime=74.26
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 5943 0 0 0 7145 281 0 0 25 0 1 0 275975066 34426880 5893 1992294400 134512640 134931368 4294956240 18446744073709551615 134529455 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 8405 5893 48 102 0 8300 0
Current children cumulated CPU time (s) 74.26
Current children cumulated vsize (KiB) 33620

[startup+75.1011 s]
/proc/loadavg: 1.07 1.00 0.93 2/65 31536
/proc/meminfo: memFree=546904/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=33620 CPUtime=75.06
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 5947 0 0 0 7225 281 0 0 25 0 1 0 275975066 34426880 5897 1992294400 134512640 134931368 4294956240 18446744073709551615 134525807 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 8405 5897 48 102 0 8300 0
Current children cumulated CPU time (s) 75.06
Current children cumulated vsize (KiB) 33620

[startup+75.5011 s]
/proc/loadavg: 1.07 1.00 0.93 2/65 31536
/proc/meminfo: memFree=546904/2055920 swapFree=4173864/4192956
[pid=31535] ppid=31533 vsize=32596 CPUtime=75.46
/proc/31535/stat : 31535 (picosat) R 31533 31535 31468 0 -1 4194304 5978 0 0 0 7265 281 0 0 25 0 1 0 275975066 33378304 5719 1992294400 134512640 134931368 4294956240 18446744073709551615 134533842 0 0 4096 0 0 0 0 17 1 0 0
/proc/31535/statm: 8149 5719 48 102 0 8044 0
Current children cumulated CPU time (s) 75.46
Current children cumulated vsize (KiB) 32596

Child status: 20
Real time (s): 75.5221
CPU time (s): 75.4885
CPU user time (s): 72.673
CPU system time (s): 2.81557
CPU usage (%): 99.9556
Max. virtual memory (cumulated for all children) (KiB): 33620

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 72.673
system time used= 2.81557
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 5979
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= 180

runsolver used 0.069989 second user time and 0.177972 second system time

The end

Launcher Data 

Begin job on node20 at 2009-05-16 15:10:18
IDJOB=1824766
IDBENCH=20343
IDSOLVER=666
FILE ID=node20/1824766-1242479417
PBS_JOBID= 9306849
Free space on /tmp= 66212 MiB

SOLVER NAME= SAT07 reference solver: picosat 535
BENCH NAME= SAT07/industrial/anbulagan/medium-unsat/total-5-11-u.cnf
COMMAND LINE= HOME/picosat BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1824766-1242479417/watcher-1824766-1242479417 -o /tmp/evaluation-result-1824766-1242479417/solver-1824766-1242479417 -C 10000 -W 12000 -M 1800 --output-limit 1,15  HOME/picosat HOME/instance-1824766-1242479417.cnf            

TIME LIMIT= 10000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 770fa9cd880a43d98e936f33f4e86d7a
RANDOM SEED=856855651

node20.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	: 5931.00
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:        570816 kB
Buffers:         98188 kB
Cached:        1268884 kB
SwapCached:      13464 kB
Active:         119752 kB
Inactive:      1262480 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        570816 kB
SwapTotal:     4192956 kB
SwapFree:      4173864 kB
Dirty:           12560 kB
Writeback:           0 kB
Mapped:          13472 kB
Slab:            88908 kB
Committed_AS:  1100788 kB
PageTables:       1396 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= 66212 MiB
End job on node20 at 2009-05-16 15:11:34