Trace number 1717661

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 57.0223 57.0478

General information on the benchmark

Nameindustrial/palacios/uts/
uts-l06-ipc5-h28-unknown.cnf
MD5SUMccc94758bbd09de3056ff3a062ddfd45
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark15.5746
Satisfiable
(Un)Satisfiability was proved
Number of variables113583
Number of clauses649270
Sum of the clauses size1721996
Maximum clause length591
Minimum clause length1
Number of clauses of size 1276
Number of clauses of size 2537293
Number of clauses of size 3107101
Number of clauses of size 4980
Number of clauses of size 5101
Number of clauses of size over 53519

Solver Data 

56.97/57.03	c starting MXC with:
56.97/57.03	c cnf_path = HOME/instance-1717661-1240629592.cnf
56.97/57.03	c restart_strategy = auto
56.97/57.03	c sign_strategy = cached
56.97/57.03	c use_preprocessing = -1
56.97/57.03	c output_implicant = 1
56.97/57.03	c timeout_seconds = 0
56.97/57.03	c running SatELite... done
56.97/57.03	c 84129 vars eliminated
56.97/57.03	c received 34 units and 485405 clauses from SatELite
56.97/57.03	c 84162 assignments made, starting to guess now
56.97/57.03	c ===================================[MXC]=====================================
56.97/57.03	c | Conflicts |                Clause Statistics                   |   Vars   |
56.97/57.03	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
56.97/57.03	c =============================================================================
56.97/57.03	c |         0 |       0  358036   127369        0        0     nan |   115898 |
56.97/57.03	c |       100 |       0  358037   127369       99     1050    16.2 |    31736 |
56.97/57.03	c |       210 |       0  358047   127369      199     1105    22.1 |    31736 |
56.97/57.03	c |       441 |       0  357906   127298      426     1220    18.1 |    31715 |
56.97/57.03	c |       805 |       0  357910   127298      786     1402    21.1 |    31715 |
56.97/57.03	c |      1315 |       0  357917   127298     1289     1657    24.2 |    31715 |
56.97/57.03	c |      1986 |       0  357929   127298     1948     1993    23.5 |    31715 |
56.97/57.03	c |      2834 |       0  357936   127298     1775     2417    20.8 |    31715 |
56.97/57.03	c |      3876 |       0  357943   127298     2810     2938    23.0 |    31715 |
56.97/57.03	c |      5132 |       0  357949   127298     2527     3566    20.7 |    31715 |
56.97/57.03	c |      6623 |       0  357953   127298     4014     4311    24.8 |    31715 |
56.97/57.03	c |      8373 |       0  357963   127298     3450     5186    24.2 |    31715 |
56.97/57.03	c |     10408 |       0  357970   127298     5478     6204    23.6 |    31715 |
56.97/57.03	c |     12756 |       0  357983   127298     4343     7378    20.1 |    31715 |
56.97/57.03	c |     15449 |       0  357988   127298     7031     8724    19.5 |    31715 |
56.97/57.03	c |     18521 |       0  357992   127298    10099    10260    19.2 |    31715 |
56.97/57.03	c |     22010 |       0  357999   127298     8372    12005    16.4 |    31715 |
56.97/57.03	c |     25958 |       0  357434   126984    12292    13979    16.5 |    31620 |
56.97/57.03	c |     30411 |       0  357435   126984     8912    16205    14.7 |    31620 |
56.97/57.03	c |     35419 |       0  357438   126984    13917    18709    15.0 |    31620 |
56.97/57.03	c |     41038 |       0  353692   122802     4590    21519    16.8 |    30702 |
56.97/57.03	c |     44434 |       0  353718   122802     7952    23217    14.6 |    30410 |
56.97/57.03	c ----- stats for thread 0 -----
56.97/57.03	c restarts: 205
56.97/57.03	c decisions: 94196
56.97/57.03	c propagations: 65944500
56.97/57.03	c conflicts: 44434
56.97/57.03	c 57.013s elapsed
56.97/57.03	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-1717661-1240629592/watcher-1717661-1240629592 -o /tmp/evaluation-result-1717661-1240629592/solver-1717661-1240629592 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1717661-1240629592.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: 1.00 1.00 0.98 3/65 18116
/proc/meminfo: memFree=1280896/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=12488 CPUtime=0
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 804 0 0 0 0 0 0 0 20 0 1 0 90989143 12787712 790 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 3122 797 46 166 0 2953 0

[startup+0.017786 s]
/proc/loadavg: 1.00 1.00 0.98 3/65 18116
/proc/meminfo: memFree=1280896/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=12488 CPUtime=0.01
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 3001 0 0 0 0 1 0 0 20 0 1 0 90989143 12787712 2987 1992294400 134512640 135192793 4294956224 18446744073709551615 134527397 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 3122 2989 50 166 0 2953 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 12488

[startup+0.101795 s]
/proc/loadavg: 1.00 1.00 0.98 3/65 18116
/proc/meminfo: memFree=1280896/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=40120 CPUtime=0.09
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 8730 0 0 0 5 4 0 0 20 0 1 0 90989143 41082880 8714 1992294400 134512640 135192793 4294956224 18446744073709551615 134577000 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 10030 8716 55 166 0 9861 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 40120

[startup+0.301814 s]
/proc/loadavg: 1.00 1.00 0.98 3/65 18116
/proc/meminfo: memFree=1280896/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=55396 CPUtime=0.29
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 12569 0 0 0 23 6 0 0 22 0 1 0 90989143 56725504 12553 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 13849 12553 55 166 0 13680 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 55396

[startup+0.701857 s]
/proc/loadavg: 1.00 1.00 0.98 3/65 18116
/proc/meminfo: memFree=1280896/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=63596 CPUtime=0.69
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 17438 0 0 0 61 8 0 0 25 0 1 0 90989143 65122304 14511 1992294400 134512640 135192793 4294956224 18446744073709551615 134567904 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 15899 14511 55 166 0 15730 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 63596

[startup+1.50294 s]
/proc/loadavg: 1.00 1.00 0.98 2/66 18117
/proc/meminfo: memFree=1222712/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=63596 CPUtime=1.49
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 17438 0 0 0 141 8 0 0 25 0 1 0 90989143 65122304 14511 1992294400 134512640 135192793 4294956224 18446744073709551615 134567915 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 15899 14511 55 166 0 15730 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 63596

[startup+3.10111 s]
/proc/loadavg: 1.00 1.00 0.98 2/66 18117
/proc/meminfo: memFree=1222584/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=63596 CPUtime=3.09
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 17438 0 0 0 301 8 0 0 25 0 1 0 90989143 65122304 14511 1992294400 134512640 135192793 4294956224 18446744073709551615 134567661 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 15899 14511 55 166 0 15730 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 63596

[startup+6.30146 s]
/proc/loadavg: 1.00 1.00 0.98 2/66 18117
/proc/meminfo: memFree=1181816/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=108940 CPUtime=6.28
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 28638 0 0 0 614 14 0 0 25 0 1 0 90989143 111554560 25711 1992294400 134512640 135192793 4294956224 18446744073709551615 134573708 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 27235 25711 56 166 0 27066 0
Current children cumulated CPU time (s) 6.28
Current children cumulated vsize (KiB) 108940

[startup+12.7011 s]
/proc/loadavg: 1.00 1.00 0.98 2/66 18117
/proc/meminfo: memFree=1175808/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=110988 CPUtime=12.69
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 29168 0 0 0 1254 15 0 0 25 0 1 0 90989143 113651712 26241 1992294400 134512640 135192793 4294956224 18446744073709551615 134567659 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 27747 26241 56 166 0 27578 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 110988

[startup+25.5015 s]
/proc/loadavg: 1.00 1.00 0.98 2/66 18117
/proc/meminfo: memFree=1169600/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=120924 CPUtime=25.48
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 30699 0 0 0 2532 16 0 0 25 0 1 0 90989143 123826176 27772 1992294400 134512640 135192793 4294956224 18446744073709551615 134567904 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 30231 27772 56 166 0 30062 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 120924

[startup+51.1012 s]
/proc/loadavg: 1.00 1.00 0.98 2/66 18117
/proc/meminfo: memFree=1174208/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=111152 CPUtime=51.07
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 32907 0 0 0 5089 18 0 0 25 0 1 0 90989143 113819648 26663 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 27788 26663 73 166 0 27619 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 111152

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

[startup+54.3016 s]
/proc/loadavg: 1.00 1.00 0.98 2/66 18117
/proc/meminfo: memFree=1173632/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=111836 CPUtime=54.27
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 33060 0 0 0 5409 18 0 0 25 0 1 0 90989143 114520064 26816 1992294400 134512640 135192793 4294956224 18446744073709551615 134533271 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 27959 26816 73 166 0 27790 0
Current children cumulated CPU time (s) 54.27
Current children cumulated vsize (KiB) 111836

[startup+55.9018 s]
/proc/loadavg: 1.00 1.00 0.98 2/66 18117
/proc/meminfo: memFree=1173440/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=111968 CPUtime=55.87
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 33103 0 0 0 5569 18 0 0 25 0 1 0 90989143 114655232 26859 1992294400 134512640 135192793 4294956224 18446744073709551615 134533186 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 27992 26859 73 166 0 27823 0
Current children cumulated CPU time (s) 55.87
Current children cumulated vsize (KiB) 111968

[startup+56.7018 s]
/proc/loadavg: 1.00 1.00 0.98 2/66 18117
/proc/meminfo: memFree=1173376/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=111968 CPUtime=56.67
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 33103 0 0 0 5649 18 0 0 25 0 1 0 90989143 114655232 26859 1992294400 134512640 135192793 4294956224 18446744073709551615 134533186 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 27992 26859 73 166 0 27823 0
Current children cumulated CPU time (s) 56.67
Current children cumulated vsize (KiB) 111968

[startup+56.9019 s]
/proc/loadavg: 1.00 1.00 0.98 2/66 18117
/proc/meminfo: memFree=1173376/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=111968 CPUtime=56.87
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 33103 0 0 0 5669 18 0 0 25 0 1 0 90989143 114655232 26859 1992294400 134512640 135192793 4294956224 18446744073709551615 134532659 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 27992 26859 73 166 0 27823 0
Current children cumulated CPU time (s) 56.87
Current children cumulated vsize (KiB) 111968

[startup+57.0019 s]
/proc/loadavg: 1.00 1.00 0.98 2/66 18117
/proc/meminfo: memFree=1173376/2055920 swapFree=4192812/4192956
[pid=18116] ppid=18114 vsize=111968 CPUtime=56.97
/proc/18116/stat : 18116 (mxc-sat09) R 18114 18116 17356 0 -1 4194304 33103 0 0 0 5679 18 0 0 25 0 1 0 90989143 114655232 26859 1992294400 134512640 135192793 4294956224 18446744073709551615 134548118 0 0 4096 0 0 0 0 17 1 0 0
/proc/18116/statm: 27992 26859 73 166 0 27823 0
Current children cumulated CPU time (s) 56.97
Current children cumulated vsize (KiB) 111968

Child status: 20
Real time (s): 57.0478
CPU time (s): 57.0223
CPU user time (s): 56.8194
CPU system time (s): 0.202969
CPU usage (%): 99.9554
Max. virtual memory (cumulated for all children) (KiB): 121580

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 56.8194
system time used= 0.202969
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 33106
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= 131

runsolver used 0.057991 second user time and 0.160975 second system time

The end

Launcher Data 

Begin job on node81 at 2009-04-25 05:19:53
IDJOB=1717661
IDBENCH=20421
IDSOLVER=504
FILE ID=node81/1717661-1240629592
PBS_JOBID= 9186384
Free space on /tmp= 126432 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT07/industrial/palacios/uts/uts-l06-ipc5-h28-unknown.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1717661-1240629592/watcher-1717661-1240629592 -o /tmp/evaluation-result-1717661-1240629592/solver-1717661-1240629592 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1717661-1240629592.cnf

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

MD5SUM BENCH= ccc94758bbd09de3056ff3a062ddfd45
RANDOM SEED=2085698586

node81.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		: 3000.234
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		: 3000.234
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1281440 kB
Buffers:         52672 kB
Cached:         632020 kB
SwapCached:          0 kB
Active:         133824 kB
Inactive:       565624 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1281440 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:           12348 kB
Writeback:           0 kB
Mapped:          24528 kB
Slab:            60848 kB
Committed_AS:   328520 kB
PageTables:       1452 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= 126432 MiB
End job on node81 at 2009-04-25 05:20:50