Trace number 1727253

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 102.842 102.876

General information on the benchmark

Namecrafted/Hard/contest05/phnf/
phnf-size10-exclusive-gigamax.used-as.sat04-984.sat05-4194.reshuffled-07.cnf
MD5SUMc7db94a671d9411eb90a6ffa8f8c530f
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark98.948
Satisfiable
(Un)Satisfiability was proved
Number of variables29249
Number of clauses861366
Sum of the clauses size1745389
Maximum clause length10
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2858070
Number of clauses of size 30
Number of clauses of size 46
Number of clauses of size 528
Number of clauses of size over 53262

Solver Data 

102.76/102.86	c starting MXC with:
102.76/102.86	c cnf_path = HOME/instance-1727253-1240722769.cnf
102.76/102.86	c restart_strategy = auto
102.76/102.86	c sign_strategy = cached
102.76/102.86	c use_preprocessing = -1
102.76/102.86	c output_implicant = 1
102.76/102.86	c timeout_seconds = 0
102.76/102.86	c running SatELite... done
102.76/102.86	c 3945 vars eliminated
102.76/102.86	c received 6845 units and 480623 clauses from SatELite
102.76/102.86	c 10789 assignments made, starting to guess now
102.76/102.86	c ===================================[MXC]=====================================
102.76/102.86	c | Conflicts |                Clause Statistics                   |   Vars   |
102.76/102.86	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
102.76/102.86	c =============================================================================
102.76/102.86	c |         0 |       0  408912    71711        0        0     nan |    29249 |
102.76/102.86	c |       100 |       0  408404    71628       72     1050     8.7 |    18444 |
102.76/102.86	c |       210 |       0  408372    71625      174     1105    10.2 |    18443 |
102.76/102.86	c |       441 |       0  407394    71522      382     1220    10.3 |    18429 |
102.76/102.86	c |       805 |       0  407277    71499      725     1402    11.0 |    18425 |
102.76/102.86	c |      1315 |       0  406080    71350     1172     1657    11.8 |    18401 |
102.76/102.86	c |      1986 |       0  404132    71120     1786     1993    12.7 |    18361 |
102.76/102.86	c |      2834 |       0  403854    71088     1467     2417    12.8 |    18353 |
102.76/102.86	c |      3876 |       0  402254    70790     2426     2938    13.3 |    18318 |
102.76/102.86	c |      5132 |       0  400934    70622     1803     3566    13.4 |    18291 |
102.76/102.86	c |      6623 |       0  398516    70387     3163     4311    14.6 |    18238 |
102.76/102.86	c |      8373 |       0  396295    70113     4734     5186    15.2 |    18190 |
102.76/102.86	c |     10408 |       0  395573    70030     3813     6204    15.4 |    18173 |
102.76/102.86	c |     12756 |       0  392576    69584     5974     7378    16.3 |    18076 |
102.76/102.86	c |     15449 |       0  391293    69414     8531     8724    16.6 |    18039 |
102.76/102.86	c |     18521 |       0  389582    69177     6969    10260    15.7 |    17979 |
102.76/102.86	c |     22010 |       0  389592    69162    10312    12005    18.0 |    17976 |
102.76/102.86	c |     25958 |       0  388532    69004     7355    13979    17.7 |    17949 |
102.76/102.86	c |     30411 |       0  387469    68872    11616    16205    18.3 |    17924 |
102.76/102.86	c |     35419 |       0  386184    68683    16421    18709    19.6 |    17894 |
102.76/102.86	c |     41038 |       0  384525    68465    11419    21519    20.4 |    17859 |
102.76/102.86	c |     47329 |       0  383922    68379    17524    24664    24.0 |    17845 |
102.76/102.86	c |     54360 |       0  383352    68324    24379    28180    28.0 |    17833 |
102.76/102.86	c |     62205 |       0  382845    68260    32045    32102    29.6 |    17822 |
102.76/102.86	c |     70945 |       0  382355    68207    24528    36472    28.2 |    17812 |
102.76/102.86	c |     80669 |       0  381769    68123    34094    41334    32.2 |    17798 |
102.76/102.86	c |     91476 |       0  381159    68062    44527    46738    35.4 |    17784 |
102.76/102.86	c |    103474 |       0  380607    67991    31841    52737    33.6 |    17772 |
102.76/102.86	c |    116782 |       0  380000    67916    44962    59391    37.9 |    17759 |
102.76/102.86	c |    131532 |       0  379731    67875    59620    66766    40.4 |    17753 |
102.76/102.86	c |    146734 |       0  379805    67875    37749    74367    32.6 |    17092 |
102.76/102.86	c ----- stats for thread 0 -----
102.76/102.86	c restarts: 435
102.76/102.86	c decisions: 606281
102.76/102.86	c propagations: 81244529
102.76/102.86	c conflicts: 146734
102.76/102.86	c 102.843s elapsed
102.76/102.86	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-1727253-1240722769/watcher-1727253-1240722769 -o /tmp/evaluation-result-1727253-1240722769/solver-1727253-1240722769 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1727253-1240722769.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: 0.92 0.98 0.98 3/64 21915
/proc/meminfo: memFree=1747768/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=12952 CPUtime=0
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 759 0 0 0 0 0 0 0 18 0 1 0 100304600 13262848 745 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 3238 751 46 166 0 3069 0

[startup+0.031343 s]
/proc/loadavg: 0.92 0.98 0.98 3/64 21915
/proc/meminfo: memFree=1747768/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=18820 CPUtime=0.02
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 4394 0 0 0 0 2 0 0 18 0 1 0 100304600 19271680 4380 1992294400 134512640 135192793 4294956224 18446744073709551615 134766703 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 4705 4386 53 166 0 4536 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 18820

[startup+0.101348 s]
/proc/loadavg: 0.92 0.98 0.98 3/64 21915
/proc/meminfo: memFree=1747768/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=21924 CPUtime=0.09
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 5050 0 0 0 7 2 0 0 18 0 1 0 100304600 22450176 5036 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 5481 5037 54 166 0 5312 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 21924

[startup+0.301366 s]
/proc/loadavg: 0.92 0.98 0.98 3/64 21915
/proc/meminfo: memFree=1747768/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=27812 CPUtime=0.29
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 6470 0 0 0 26 3 0 0 19 0 1 0 100304600 28479488 6456 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 6953 6456 54 166 0 6784 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 27812

[startup+0.701401 s]
/proc/loadavg: 0.92 0.98 0.98 3/64 21915
/proc/meminfo: memFree=1747768/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=39340 CPUtime=0.69
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 9237 0 0 0 63 6 0 0 22 0 1 0 100304600 40284160 9223 1992294400 134512640 135192793 4294956224 18446744073709551615 134577000 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 9835 9223 54 166 0 9666 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 39340

[startup+1.50147 s]
/proc/loadavg: 0.92 0.98 0.98 2/65 21916
/proc/meminfo: memFree=1702128/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=63964 CPUtime=1.49
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 15159 0 0 0 141 8 0 0 25 0 1 0 100304600 65499136 15145 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 15991 15145 54 166 0 15822 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 63964

[startup+3.10162 s]
/proc/loadavg: 0.93 0.98 0.98 2/65 21916
/proc/meminfo: memFree=1696880/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=53704 CPUtime=3.09
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 15699 0 0 0 300 9 0 0 25 0 1 0 100304600 54992896 12658 1992294400 134512640 135192793 4294956224 18446744073709551615 134567659 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 13426 12658 55 166 0 13257 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 53704

[startup+6.30191 s]
/proc/loadavg: 0.93 0.98 0.98 2/65 21916
/proc/meminfo: memFree=1689008/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=68368 CPUtime=6.29
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 19580 0 0 0 619 10 0 0 25 0 1 0 100304600 70008832 16539 1992294400 134512640 135192793 4294956224 18446744073709551615 134573739 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 17092 16539 56 166 0 16923 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 68368

[startup+12.7015 s]
/proc/loadavg: 0.94 0.98 0.98 2/65 21916
/proc/meminfo: memFree=1675952/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=79956 CPUtime=12.69
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 21675 0 0 0 1258 11 0 0 25 0 1 0 100304600 81874944 18634 1992294400 134512640 135192793 4294956224 18446744073709551615 134567773 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 19989 18634 56 166 0 19820 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 79956

[startup+25.5016 s]
/proc/loadavg: 1.03 1.00 0.99 2/65 21916
/proc/meminfo: memFree=1680048/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=69448 CPUtime=25.48
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 22694 0 0 0 2536 12 0 0 25 0 1 0 100304600 71114752 16897 1992294400 134512640 135192793 4294956224 18446744073709551615 134534303 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 17362 16897 73 166 0 17193 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 69448

[startup+51.1019 s]
/proc/loadavg: 1.02 1.00 0.99 2/65 21916
/proc/meminfo: memFree=1672304/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=77568 CPUtime=51.08
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 24713 0 0 0 5093 15 0 0 25 0 1 0 100304600 79429632 18916 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 19392 18916 73 166 0 19223 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 77568

[startup+102.306 s]
/proc/loadavg: 1.06 1.01 0.99 2/65 21916
/proc/meminfo: memFree=1659184/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=90828 CPUtime=102.26
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 27923 0 0 0 10208 18 0 0 25 0 1 0 100304600 93007872 22126 1992294400 134512640 135192793 4294956224 18446744073709551615 134534098 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 22707 22126 73 166 0 22538 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 90828

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

[startup+102.702 s]
/proc/loadavg: 1.06 1.01 0.99 2/65 21916
/proc/meminfo: memFree=1659184/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=90828 CPUtime=102.66
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 27923 0 0 0 10248 18 0 0 25 0 1 0 100304600 93007872 22126 1992294400 134512640 135192793 4294956224 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 22707 22126 73 166 0 22538 0
Current children cumulated CPU time (s) 102.66
Current children cumulated vsize (KiB) 90828

[startup+102.802 s]
/proc/loadavg: 1.06 1.01 0.99 2/65 21916
/proc/meminfo: memFree=1659184/2055920 swapFree=4170844/4192956
[pid=21915] ppid=21913 vsize=90828 CPUtime=102.76
/proc/21915/stat : 21915 (mxc-sat09) R 21913 21915 21694 0 -1 4194304 27923 0 0 0 10258 18 0 0 25 0 1 0 100304600 93007872 22126 1992294400 134512640 135192793 4294956224 18446744073709551615 134532620 0 0 4096 0 0 0 0 17 1 0 0
/proc/21915/statm: 22707 22126 73 166 0 22538 0
Current children cumulated CPU time (s) 102.76
Current children cumulated vsize (KiB) 90828

Child status: 20
Real time (s): 102.876
CPU time (s): 102.842
CPU user time (s): 102.64
CPU system time (s): 0.201969
CPU usage (%): 99.9671
Max. virtual memory (cumulated for all children) (KiB): 90828

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 102.64
system time used= 0.201969
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 27926
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= 274

runsolver used 0.080987 second user time and 0.231964 second system time

The end

Launcher Data 

Begin job on node51 at 2009-04-26 07:12:51
IDJOB=1727253
IDBENCH=24634
IDSOLVER=504
FILE ID=node51/1727253-1240722769
PBS_JOBID= 9186876
Free space on /tmp= 66372 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT07/crafted/Hard/contest05/phnf/phnf-size10-exclusive-gigamax.used-as.sat04-984.sat05-4194.reshuffled-07.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1727253-1240722769/watcher-1727253-1240722769 -o /tmp/evaluation-result-1727253-1240722769/solver-1727253-1240722769 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1727253-1240722769.cnf

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

MD5SUM BENCH= c7db94a671d9411eb90a6ffa8f8c530f
RANDOM SEED=1051476218

node51.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	: 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		: 3000.214
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:       1748184 kB
Buffers:         44096 kB
Cached:         178580 kB
SwapCached:      16820 kB
Active:         128224 kB
Inactive:       113752 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1748184 kB
SwapTotal:     4192956 kB
SwapFree:      4170844 kB
Dirty:           12796 kB
Writeback:           0 kB
Mapped:          13672 kB
Slab:            51764 kB
Committed_AS:   265632 kB
PageTables:       1392 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= 66372 MiB
End job on node51 at 2009-04-26 07:14:34