Trace number 428681

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, and are wall clock time (not CPU 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
minimarch 2007-04-26 (fixed)UNSAT 2.90756 2.90973

General information on the benchmark

Namecrafted/Medium/contest05/pebbling/
unsat-pbl-00250.sat05-1330.reshuffled-07.cnf
MD5SUM922dc9f32281b0c4efd640c112a641b6
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark1.75373
Satisfiable
(Un)Satisfiability was proved
Number of variables864
Number of clauses32700
Sum of the clauses size256765
Maximum clause length11
Minimum clause length1
Number of clauses of size 12
Number of clauses of size 228
Number of clauses of size 3180
Number of clauses of size 4348
Number of clauses of size 51746
Number of clauses of size over 530396

Solver Data (download as text)

0.00/0.00	This is MiniMarch 1.1, a modified version of MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  864                                                  |
0.00/0.00	|  Number of clauses:    32700                                                |
0.09/0.14	|  Parsing time:         0.14         s                                       |
2.89/2.90	lookaheads            : 0
2.89/2.90	variable balance      : 0.00
2.89/2.90	restarts              : 0
2.89/2.90	conflicts             : 0              (0 /sec)
2.89/2.90	decisions             : 0              ( nan % random) (0 /sec)
2.89/2.90	decision = positive   : 0
2.89/2.90	decision = negative   : 0
2.89/2.90	propagations          : 50             (17 /sec)
2.89/2.90	conflict literals     : 0              ( nan % deleted)
2.89/2.90	Memory used           : 8.40 MB
2.89/2.90	CPU time              : 2.89556 s
2.89/2.90	
2.89/2.90	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node24/watcher-428681-1177741453 -o ROOT/results/node24/solver-428681-1177741453 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/428681-1177741453/minimarch_fixed /tmp/evaluation/428681-1177741453/instance-428681-1177741453.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): 2400 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: 0.92 0.98 0.99 2/77 311
/proc/meminfo: memFree=1518536/2055920 swapFree=4143384/4192956
[pid=311] ppid=309 vsize=1868 CPUtime=0
/proc/311/stat : 311 (minimarch_fixed) R 309 311 31989 0 -1 4194304 384 0 0 0 0 0 0 0 18 0 1 0 222063345 1912832 369 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/311/statm: 467 369 51 132 0 332 0

[startup+0.055555 s]
/proc/loadavg: 0.92 0.98 0.99 2/77 311
/proc/meminfo: memFree=1518536/2055920 swapFree=4143384/4192956
[pid=311] ppid=309 vsize=4224 CPUtime=0.05
/proc/311/stat : 311 (minimarch_fixed) R 309 311 31989 0 -1 4194304 974 0 0 0 5 0 0 0 18 0 1 0 222063345 4325376 959 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/311/statm: 1056 959 51 132 0 921 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 4224

[startup+0.102569 s]
/proc/loadavg: 0.92 0.98 0.99 2/77 311
/proc/meminfo: memFree=1518536/2055920 swapFree=4143384/4192956
[pid=311] ppid=309 vsize=5220 CPUtime=0.09
/proc/311/stat : 311 (minimarch_fixed) R 309 311 31989 0 -1 4194304 1189 0 0 0 9 0 0 0 18 0 1 0 222063345 5345280 1174 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134523040 0 0 4096 3 0 0 0 17 1 0 0
/proc/311/statm: 1305 1174 51 132 0 1170 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 5220

[startup+0.30158 s]
/proc/loadavg: 0.92 0.98 0.99 2/77 311
/proc/meminfo: memFree=1518536/2055920 swapFree=4143384/4192956
[pid=311] ppid=309 vsize=5216 CPUtime=0.29
/proc/311/stat : 311 (minimarch_fixed) R 309 311 31989 0 -1 4194304 1201 0 0 0 29 0 0 0 19 0 1 0 222063345 5341184 1186 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134531329 0 0 4096 3 0 0 0 17 1 0 0
/proc/311/statm: 1304 1186 63 132 0 1169 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 5216

[startup+0.701623 s]
/proc/loadavg: 0.92 0.98 0.99 2/77 311
/proc/meminfo: memFree=1518536/2055920 swapFree=4143384/4192956
[pid=311] ppid=309 vsize=6008 CPUtime=0.69
/proc/311/stat : 311 (minimarch_fixed) R 309 311 31989 0 -1 4194304 1416 0 0 0 69 0 0 0 23 0 1 0 222063345 6152192 1401 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134523094 0 0 4096 3 0 0 0 17 1 0 0
/proc/311/statm: 1502 1401 63 132 0 1367 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6008

[startup+1.50171 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 312
/proc/meminfo: memFree=1513024/2055920 swapFree=4143384/4192956
[pid=311] ppid=309 vsize=6868 CPUtime=1.49
/proc/311/stat : 311 (minimarch_fixed) R 309 311 31989 0 -1 4194304 1608 0 0 0 149 0 0 0 25 0 1 0 222063345 7032832 1593 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134523053 0 0 4096 3 0 0 0 17 1 0 0
/proc/311/statm: 1717 1593 63 132 0 1582 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 6868

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

[startup+2.3018 s]
/proc/loadavg: 0.92 0.98 0.99 3/78 312
/proc/meminfo: memFree=1511744/2055920 swapFree=4143384/4192956
[pid=311] ppid=309 vsize=7532 CPUtime=2.29
/proc/311/stat : 311 (minimarch_fixed) R 309 311 31989 0 -1 4194304 1775 0 0 0 229 0 0 0 25 0 1 0 222063345 7712768 1760 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134523094 0 0 4096 3 0 0 0 17 1 0 0
/proc/311/statm: 1883 1760 63 132 0 1748 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 7532

[startup+2.70184 s]
/proc/loadavg: 0.92 0.98 0.99 3/78 312
/proc/meminfo: memFree=1511744/2055920 swapFree=4143384/4192956
[pid=311] ppid=309 vsize=8332 CPUtime=2.69
/proc/311/stat : 311 (minimarch_fixed) R 309 311 31989 0 -1 4194304 1915 0 0 0 269 0 0 0 25 0 1 0 222063345 8531968 1900 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134528669 0 0 4096 3 0 0 0 17 1 0 0
/proc/311/statm: 2083 1900 63 132 0 1948 0
Current children cumulated CPU time (s) 2.69
Current children cumulated vsize (KiB) 8332

[startup+2.90186 s]
/proc/loadavg: 0.92 0.98 0.99 3/78 312
/proc/meminfo: memFree=1511744/2055920 swapFree=4143384/4192956
[pid=311] ppid=309 vsize=8596 CPUtime=2.89
/proc/311/stat : 311 (minimarch_fixed) R 309 311 31989 0 -1 4194304 2025 0 0 0 289 0 0 0 25 0 1 0 222063345 8802304 2010 18446744073709551615 134512640 135054336 4294956656 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/311/statm: 2149 2010 63 132 0 2014 0
Current children cumulated CPU time (s) 2.89
Current children cumulated vsize (KiB) 8596

Child status: 20
Real time (s): 2.90973
CPU time (s): 2.90756
CPU user time (s): 2.89556
CPU system time (s): 0.011998
CPU usage (%): 99.9252
Max. virtual memory (cumulated for all children) (KiB): 8596

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.89556
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2038
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= 8
involuntary context switches= 59

runsolver used 0.006998 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node24 on Sat Apr 28 06:24:13 UTC 2007

IDJOB= 428681
IDBENCH= 24590
IDSOLVER= 198
FILE ID= node24/428681-1177741453

PBS_JOBID= 4715453

Free space on /tmp= 66312 MiB

SOLVER NAME= minimarch 2007-04-26 (fixed)
BENCH NAME= HOME/pub/bench/SAT07/crafted/Medium/contest05/pebbling/unsat-pbl-00250.sat05-1330.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/428681-1177741453/minimarch_fixed /tmp/evaluation/428681-1177741453/instance-428681-1177741453.cnf
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-428681-1177741453 -o ROOT/results/node24/solver-428681-1177741453 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/428681-1177741453/minimarch_fixed /tmp/evaluation/428681-1177741453/instance-428681-1177741453.cnf

META MD5SUM SOLVER= 08d902191c06ef4f82d57c2f2b6a82c2
MD5SUM BENCH=  922dc9f32281b0c4efd640c112a641b6

RANDOM SEED= 377221385

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node24.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.238
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		: 3000.238
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:       1518944 kB
Buffers:         49540 kB
Cached:         399376 kB
SwapCached:      17904 kB
Active:         267108 kB
Inactive:       205944 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1518944 kB
SwapTotal:     4192956 kB
SwapFree:      4143384 kB
Dirty:            4020 kB
Writeback:           0 kB
Mapped:          30420 kB
Slab:            49432 kB
Committed_AS:  3836048 kB
PageTables:       1808 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= 66312 MiB

End job on node24 on Sat Apr 28 06:24:16 UTC 2007