Trace number 1736445

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
MXC 2009-03-10UNSAT 2.6466 2.64776

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 

2.59/2.64	c starting MXC with:
2.59/2.64	c cnf_path = HOME/instance-1736445-1240811694.cnf
2.59/2.64	c restart_strategy = auto
2.59/2.64	c sign_strategy = cached
2.59/2.64	c use_preprocessing = -1
2.59/2.64	c output_implicant = 1
2.59/2.64	c timeout_seconds = 0
2.59/2.64	c running SatELite... done
2.59/2.64	c 1375 vars eliminated
2.59/2.64	c received 90 units and 24812 clauses from SatELite
2.59/2.64	c 1464 assignments made, starting to guess now
2.59/2.64	c ===================================[MXC]=====================================
2.59/2.64	c | Conflicts |                Clause Statistics                   |   Vars   |
2.59/2.64	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
2.59/2.64	c =============================================================================
2.59/2.64	c |         0 |       0    5882    18930        0        0     nan |     4380 |
2.59/2.64	c |       100 |       0    5880    18929       98     1050    12.7 |     2915 |
2.59/2.64	c |       210 |       0    5881    18929      207     1105    12.8 |     2915 |
2.59/2.64	c |       441 |       0    5884    18929      435     1220    14.9 |     2915 |
2.59/2.64	c |       805 |       0    5893    18929      790     1402    15.6 |     2915 |
2.59/2.64	c |      1315 |       0    5907    18929     1286     1657    16.7 |     2915 |
2.59/2.64	c |      1986 |       0    5918    18929     1946     1993    17.9 |     2915 |
2.59/2.64	c |      2834 |       0    5926    18929     1767     2417    18.0 |     2915 |
2.59/2.64	c |      3876 |       0    5937    18929     2798     2938    18.6 |     2915 |
2.59/2.64	c |      5132 |       0    5952    18929     2503     3566    19.8 |     2915 |
2.59/2.64	c |      6623 |       0    5960    18929     3986     4311    20.9 |     2915 |
2.59/2.64	c |      8373 |       0    5970    18929     3424     5186    20.2 |     2915 |
2.59/2.64	c |     10408 |       0    5986    18929     5443     6204    22.1 |     2915 |
2.59/2.64	c |     12756 |       0    5999    18929     4295     7378    19.2 |     2915 |
2.59/2.64	c |     15449 |       0    6007    18929     6980     8724    20.7 |     2915 |
2.59/2.64	c |     17924 |       0    6032    18929     9420     9962    21.9 |     1069 |
2.59/2.64	c ----- stats for thread 0 -----
2.59/2.64	c restarts: 103
2.59/2.64	c decisions: 37952
2.59/2.64	c propagations: 4500235
2.59/2.64	c conflicts: 17924
2.59/2.64	c 2.645s elapsed
2.59/2.64	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-1736445-1240811694/watcher-1736445-1240811694 -o /tmp/evaluation-result-1736445-1240811694/solver-1736445-1240811694 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1736445-1240811694.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: 1.12 1.06 1.00 2/64 28988
/proc/meminfo: memFree=1309056/2055920 swapFree=4181276/4192956
[pid=28988] ppid=28986 vsize=2892 CPUtime=0
/proc/28988/stat : 28988 (mxc-sat09) R 28986 28988 28770 0 -1 4194304 502 0 0 0 0 0 0 0 18 0 1 0 109197236 2961408 488 1992294400 134512640 135192793 4294956224 18446744073709551615 134560586 0 0 4096 0 0 0 0 17 1 0 0
/proc/28988/statm: 723 488 54 166 0 554 0

[startup+0.0816519 s]
/proc/loadavg: 1.12 1.06 1.00 2/64 28988
/proc/meminfo: memFree=1309056/2055920 swapFree=4181276/4192956
[pid=28988] ppid=28986 vsize=4672 CPUtime=0.07
/proc/28988/stat : 28988 (mxc-sat09) R 28986 28988 28770 0 -1 4194304 1057 0 0 0 7 0 0 0 18 0 1 0 109197236 4784128 895 1992294400 134512640 135192793 4294956224 18446744073709551615 134560395 0 0 4096 0 0 0 0 17 1 0 0
/proc/28988/statm: 1168 895 56 166 0 999 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 4672

[startup+0.101651 s]
/proc/loadavg: 1.12 1.06 1.00 2/64 28988
/proc/meminfo: memFree=1309056/2055920 swapFree=4181276/4192956
[pid=28988] ppid=28986 vsize=4308 CPUtime=0.09
/proc/28988/stat : 28988 (mxc-sat09) R 28986 28988 28770 0 -1 4194304 1060 0 0 0 9 0 0 0 18 0 1 0 109197236 4411392 834 1992294400 134512640 135192793 4294956224 18446744073709551615 134748378 0 0 4096 0 0 0 0 17 1 0 0
/proc/28988/statm: 1077 834 56 166 0 908 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 4308

[startup+0.301673 s]
/proc/loadavg: 1.12 1.06 1.00 2/64 28988
/proc/meminfo: memFree=1309056/2055920 swapFree=4181276/4192956
[pid=28988] ppid=28986 vsize=6948 CPUtime=0.29
/proc/28988/stat : 28988 (mxc-sat09) R 28986 28988 28770 0 -1 4194304 1731 0 0 0 29 0 0 0 19 0 1 0 109197236 7114752 1505 1992294400 134512640 135192793 4294956224 18446744073709551615 134549692 0 0 4096 0 0 0 0 17 1 0 0
/proc/28988/statm: 1737 1505 73 166 0 1568 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 6948

[startup+0.701716 s]
/proc/loadavg: 1.12 1.06 1.00 2/64 28988
/proc/meminfo: memFree=1309056/2055920 swapFree=4181276/4192956
[pid=28988] ppid=28986 vsize=7348 CPUtime=0.69
/proc/28988/stat : 28988 (mxc-sat09) R 28986 28988 28770 0 -1 4194304 1818 0 0 0 69 0 0 0 23 0 1 0 109197236 7524352 1592 1992294400 134512640 135192793 4294956224 18446744073709551615 134533381 0 0 4096 0 0 0 0 17 1 0 0
/proc/28988/statm: 1837 1592 73 166 0 1668 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 7348

[startup+1.5018 s]
/proc/loadavg: 1.12 1.06 1.00 2/65 28989
/proc/meminfo: memFree=1302648/2055920 swapFree=4181276/4192956
[pid=28988] ppid=28986 vsize=8140 CPUtime=1.49
/proc/28988/stat : 28988 (mxc-sat09) R 28986 28988 28770 0 -1 4194304 2013 0 0 0 148 1 0 0 25 0 1 0 109197236 8335360 1787 1992294400 134512640 135192793 4294956224 18446744073709551615 134552148 0 0 4096 0 0 0 0 17 1 0 0
/proc/28988/statm: 2035 1787 73 166 0 1866 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 8140

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

[startup+2.30189 s]
/proc/loadavg: 1.11 1.06 1.00 2/65 28989
/proc/meminfo: memFree=1301944/2055920 swapFree=4181276/4192956
[pid=28988] ppid=28986 vsize=8404 CPUtime=2.29
/proc/28988/stat : 28988 (mxc-sat09) R 28986 28988 28770 0 -1 4194304 2093 0 0 0 228 1 0 0 25 0 1 0 109197236 8605696 1867 1992294400 134512640 135192793 4294956224 18446744073709551615 134552291 0 0 4096 0 0 0 0 17 1 0 0
/proc/28988/statm: 2101 1867 73 166 0 1932 0
Current children cumulated CPU time (s) 2.29
Current children cumulated vsize (KiB) 8404

[startup+2.50191 s]
/proc/loadavg: 1.11 1.06 1.00 2/65 28989
/proc/meminfo: memFree=1301944/2055920 swapFree=4181276/4192956
[pid=28988] ppid=28986 vsize=8688 CPUtime=2.49
/proc/28988/stat : 28988 (mxc-sat09) R 28986 28988 28770 0 -1 4194304 2145 0 0 0 248 1 0 0 25 0 1 0 109197236 8896512 1919 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/28988/statm: 2172 1919 73 166 0 2003 0
Current children cumulated CPU time (s) 2.49
Current children cumulated vsize (KiB) 8688

[startup+2.60192 s]
/proc/loadavg: 1.11 1.06 1.00 2/65 28989
/proc/meminfo: memFree=1301944/2055920 swapFree=4181276/4192956
[pid=28988] ppid=28986 vsize=8688 CPUtime=2.59
/proc/28988/stat : 28988 (mxc-sat09) R 28986 28988 28770 0 -1 4194304 2163 0 0 0 258 1 0 0 25 0 1 0 109197236 8896512 1937 1992294400 134512640 135192793 4294956224 18446744073709551615 134534059 0 0 4096 0 0 0 0 17 1 0 0
/proc/28988/statm: 2172 1937 73 166 0 2003 0
Current children cumulated CPU time (s) 2.59
Current children cumulated vsize (KiB) 8688

Child status: 20
Real time (s): 2.64776
CPU time (s): 2.6466
CPU user time (s): 2.6306
CPU system time (s): 0.015997
CPU usage (%): 99.9561
Max. virtual memory (cumulated for all children) (KiB): 8688

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.6306
system time used= 0.015997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2174
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= 8

runsolver used 0.003999 second user time and 0.012998 second system time

The end

Launcher Data 

Begin job on node47 at 2009-04-27 07:54:55
IDJOB=1736445
IDBENCH=71626
IDSOLVER=504
FILE ID=node47/1736445-1240811694
PBS_JOBID= 9187447
Free space on /tmp= 66292 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n5_i6_pp_ci_ce.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1736445-1240811694/watcher-1736445-1240811694 -o /tmp/evaluation-result-1736445-1240811694/solver-1736445-1240811694 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1736445-1240811694.cnf

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

MD5SUM BENCH= 2cb95a73fc66a1c6328b2127a33b0a14
RANDOM SEED=1072840718

node47.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		: 3000.212
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		: 3000.212
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:       1309536 kB
Buffers:         84500 kB
Cached:         580604 kB
SwapCached:       6464 kB
Active:         252560 kB
Inactive:       421372 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1309536 kB
SwapTotal:     4192956 kB
SwapFree:      4181276 kB
Dirty:            1428 kB
Writeback:           0 kB
Mapped:          13536 kB
Slab:            58396 kB
Committed_AS:   469764 kB
PageTables:       1444 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= 66288 MiB
End job on node47 at 2009-04-27 07:54:57