Trace number 1773957

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 31.5522 31.5595

General information on the benchmark

NameAPPLICATIONS/crypto/
md5gen/gus-md5-04.cnf
MD5SUM019984f9d84c315e8eec645fb9d169da
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark4.32534
Satisfiable
(Un)Satisfiability was proved
Number of variables68679
Number of clauses223994
Sum of the clauses size580546
Maximum clause length3
Minimum clause length1
Number of clauses of size 1129
Number of clauses of size 291178
Number of clauses of size 3132687
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

31.48/31.55	c starting MXC with:
31.48/31.55	c cnf_path = HOME/instance-1773957-1241305366.cnf
31.48/31.55	c restart_strategy = auto
31.48/31.55	c sign_strategy = cached
31.48/31.55	c use_preprocessing = -1
31.48/31.55	c output_implicant = 1
31.48/31.55	c timeout_seconds = 0
31.48/31.55	c running SatELite... done
31.48/31.55	c 40306 vars eliminated
31.48/31.55	c received 287 units and 161317 clauses from SatELite
31.48/31.55	c 40592 assignments made, starting to guess now
31.48/31.55	c ===================================[MXC]=====================================
31.48/31.55	c | Conflicts |                Clause Statistics                   |   Vars   |
31.48/31.55	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
31.48/31.55	c =============================================================================
31.48/31.55	c |         0 |       0    9812   151505        0        0     nan |    68679 |
31.48/31.55	c |       100 |       0    9838   151378       77     1050    51.7 |    28073 |
31.48/31.55	c |       210 |       0    9849   151378      175     1105   103.8 |    28063 |
31.48/31.55	c |       402 |       0    9870   151378      337     1201   106.7 |     9954 |
31.48/31.55	c ----- stats for thread 0 -----
31.48/31.55	c restarts: 2
31.48/31.55	c decisions: 3033
31.48/31.55	c propagations: 3713979
31.48/31.55	c conflicts: 402
31.48/31.55	c 31.544s elapsed
31.48/31.55	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-1773957-1241305366/watcher-1773957-1241305366 -o /tmp/evaluation-result-1773957-1241305366/solver-1773957-1241305366 -C 10000 -W 12000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1773957-1241305366.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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 30192
/proc/meminfo: memFree=1848640/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=4892 CPUtime=0
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 773 0 0 0 0 0 0 0 18 0 1 0 158570322 5009408 759 1992294400 134512640 135192793 4294956224 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 1223 766 46 166 0 1054 0

[startup+0.0533349 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 30192
/proc/meminfo: memFree=1848640/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=26004 CPUtime=0.04
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 4382 0 0 0 2 2 0 0 18 0 1 0 158570322 26628096 4366 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 6501 4367 55 166 0 6332 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 26004

[startup+0.102334 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 30192
/proc/meminfo: memFree=1848640/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=29964 CPUtime=0.09
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 5334 0 0 0 7 2 0 0 18 0 1 0 158570322 30683136 5318 1992294400 134512640 135192793 4294956224 18446744073709551615 134560541 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 7491 5319 55 166 0 7322 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 29964

[startup+0.301348 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 30192
/proc/meminfo: memFree=1848640/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=35012 CPUtime=0.29
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 7495 0 0 0 26 3 0 0 19 0 1 0 158570322 35852288 6468 1992294400 134512640 135192793 4294956224 18446744073709551615 134563846 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 8786 6469 56 166 0 8617 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 35012

[startup+0.701385 s]
/proc/loadavg: 1.00 1.00 1.00 3/65 30192
/proc/meminfo: memFree=1848640/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=46788 CPUtime=0.69
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 10367 0 0 0 65 4 0 0 23 0 1 0 158570322 47910912 9340 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 11697 9340 56 166 0 11528 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 46788

[startup+1.50146 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 30193
/proc/meminfo: memFree=1805880/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=63216 CPUtime=1.49
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 15762 0 0 0 143 6 0 0 25 0 1 0 158570322 64733184 13692 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 15804 13692 72 166 0 15635 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 63216

[startup+3.10161 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 30193
/proc/meminfo: memFree=1793400/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=63480 CPUtime=3.09
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 15841 0 0 0 303 6 0 0 25 0 1 0 158570322 65003520 13771 1992294400 134512640 135192793 4294956224 18446744073709551615 134552291 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 15870 13771 72 166 0 15701 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 63480

[startup+6.30191 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 30193
/proc/meminfo: memFree=1793152/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=63876 CPUtime=6.29
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 15950 0 0 0 623 6 0 0 25 0 1 0 158570322 65409024 13880 1992294400 134512640 135192793 4294956224 18446744073709551615 134552256 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 15969 13880 72 166 0 15800 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 63876

[startup+12.7015 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 30193
/proc/meminfo: memFree=1792640/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=64404 CPUtime=12.68
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 16058 0 0 0 1262 6 0 0 25 0 1 0 158570322 65949696 13988 1992294400 134512640 135192793 4294956224 18446744073709551615 134550798 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 16101 13988 72 166 0 15932 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 64404

[startup+25.5027 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 30193
/proc/meminfo: memFree=1792640/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=64536 CPUtime=25.48
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 16099 0 0 0 2542 6 0 0 25 0 1 0 158570322 66084864 14029 1992294400 134512640 135192793 4294956224 18446744073709551615 134552427 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 16134 14029 72 166 0 15965 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 64536

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

[startup+28.702 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 30193
/proc/meminfo: memFree=1792640/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=64536 CPUtime=28.68
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 16105 0 0 0 2862 6 0 0 25 0 1 0 158570322 66084864 14035 1992294400 134512640 135192793 4294956224 18446744073709551615 134552258 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 16134 14035 72 166 0 15965 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 64536

[startup+30.3012 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 30193
/proc/meminfo: memFree=1792640/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=64536 CPUtime=30.28
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 16108 0 0 0 3022 6 0 0 25 0 1 0 158570322 66084864 14038 1992294400 134512640 135192793 4294956224 18446744073709551615 134552291 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 16134 14038 72 166 0 15965 0
Current children cumulated CPU time (s) 30.28
Current children cumulated vsize (KiB) 64536

[startup+31.1012 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 30193
/proc/meminfo: memFree=1792640/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=64536 CPUtime=31.08
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 16110 0 0 0 3102 6 0 0 25 0 1 0 158570322 66084864 14040 1992294400 134512640 135192793 4294956224 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 16134 14040 72 166 0 15965 0
Current children cumulated CPU time (s) 31.08
Current children cumulated vsize (KiB) 64536

[startup+31.5013 s]
/proc/loadavg: 1.00 1.00 1.00 2/66 30193
/proc/meminfo: memFree=1792640/2055920 swapFree=4181396/4192956
[pid=30192] ppid=30190 vsize=64536 CPUtime=31.48
/proc/30192/stat : 30192 (mxc-sat09) R 30190 30192 30155 0 -1 4194304 16111 0 0 0 3142 6 0 0 25 0 1 0 158570322 66084864 14041 1992294400 134512640 135192793 4294956224 18446744073709551615 134534170 0 0 4096 0 0 0 0 17 0 0 0
/proc/30192/statm: 16134 14041 72 166 0 15965 0
Current children cumulated CPU time (s) 31.48
Current children cumulated vsize (KiB) 64536

Child status: 20
Real time (s): 31.5595
CPU time (s): 31.5522
CPU user time (s): 31.4732
CPU system time (s): 0.078987
CPU usage (%): 99.9769
Max. virtual memory (cumulated for all children) (KiB): 64536

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 31.4732
system time used= 0.078987
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16115
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= 100

runsolver used 0.040993 second user time and 0.06499 second system time

The end

Launcher Data 

Begin job on node8 at 2009-05-03 01:02:46
IDJOB=1773957
IDBENCH=70827
IDSOLVER=613
FILE ID=node8/1773957-1241305366
PBS_JOBID= 9225217
Free space on /tmp= 65936 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/APPLICATIONS/crypto/md5gen/gus-md5-04.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1773957-1241305366/watcher-1773957-1241305366 -o /tmp/evaluation-result-1773957-1241305366/solver-1773957-1241305366 -C 10000 -W 12000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1773957-1241305366.cnf

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

MD5SUM BENCH= 019984f9d84c315e8eec645fb9d169da
RANDOM SEED=1395053666

node8.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		: 3000.238
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1849056 kB
Buffers:         18420 kB
Cached:         110492 kB
SwapCached:       4504 kB
Active:          33940 kB
Inactive:       103312 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1849056 kB
SwapTotal:     4192956 kB
SwapFree:      4181396 kB
Dirty:            4980 kB
Writeback:           0 kB
Mapped:          15036 kB
Slab:            55420 kB
Committed_AS:   801884 kB
PageTables:       1372 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= 65936 MiB
End job on node8 at 2009-05-03 01:03:18