Trace number 1556791

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 69.3665 69.3836

General information on the benchmark

NameAPPLICATIONS/crypto/
md5gen/gus-md5-05.cnf
MD5SUM2802e980ef7a0af021d80df126a2e28c
Bench CategoryAPPLICATION (applications instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark10.1175
Satisfiable
(Un)Satisfiability was proved
Number of variables68827
Number of clauses224473
Sum of the clauses size581793
Maximum clause length3
Minimum clause length1
Number of clauses of size 1129
Number of clauses of size 291368
Number of clauses of size 3132976
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

69.28/69.37	c starting MXC with:
69.28/69.37	c cnf_path = HOME/instance-1556791-1238750563.cnf
69.28/69.37	c restart_strategy = auto
69.28/69.37	c sign_strategy = cached
69.28/69.37	c use_preprocessing = -1
69.28/69.37	c output_implicant = 1
69.28/69.37	c timeout_seconds = 0
69.28/69.37	c running SatELite... done
69.28/69.37	c 40379 vars eliminated
69.28/69.37	c received 283 units and 161685 clauses from SatELite
69.28/69.37	c 40661 assignments made, starting to guess now
69.28/69.37	c ===================================[MXC]=====================================
69.28/69.37	c | Conflicts |                Clause Statistics                   |   Vars   |
69.28/69.37	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
69.28/69.37	c =============================================================================
69.28/69.37	c |         0 |       0    9837   151848        0        0     nan |    68827 |
69.28/69.37	c |       100 |       0    9849   151783       86     1050    84.7 |    28159 |
69.28/69.37	c |       210 |       0    9852   151783      193     1105   114.9 |    28159 |
69.28/69.37	c |       441 |       0    9855   151783      421     1220   122.2 |    28159 |
69.28/69.37	c |       805 |       0    9859   151783      781     1402    89.8 |    28159 |
69.28/69.37	c |      1033 |       0    9886   151783      972     1516    84.1 |    10049 |
69.28/69.37	c ----- stats for thread 0 -----
69.28/69.37	c restarts: 3
69.28/69.37	c decisions: 2680
69.28/69.37	c propagations: 11572822
69.28/69.37	c conflicts: 1033
69.28/69.37	c 69.367s elapsed
69.28/69.37	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-1556791-1238750563/watcher-1556791-1238750563 -o /tmp/evaluation-result-1556791-1238750563/solver-1556791-1238750563 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/mxc-sat09 -i HOME/instance-1556791-1238750563.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: 0.99 0.98 1.00 3/64 30900
/proc/meminfo: memFree=802280/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=4900 CPUtime=0
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 745 0 0 0 0 0 0 0 18 0 1 0 319257682 5017600 731 1992294400 134512640 135192793 4294956208 18446744073709551615 134779278 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 1225 736 46 166 0 1056 0

[startup+0.0972331 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 30900
/proc/meminfo: memFree=802280/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=29444 CPUtime=0.08
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 5183 0 0 0 6 2 0 0 18 0 1 0 319257682 30150656 5167 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 7361 5168 55 166 0 7192 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 29444

[startup+0.101232 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 30900
/proc/meminfo: memFree=802280/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=29708 CPUtime=0.09
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 5249 0 0 0 7 2 0 0 18 0 1 0 319257682 30420992 5233 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 7427 5233 55 166 0 7258 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 29708

[startup+0.301255 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 30900
/proc/meminfo: memFree=802280/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=34880 CPUtime=0.29
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 7458 0 0 0 26 3 0 0 19 0 1 0 319257682 35717120 6428 1992294400 134512640 135192793 4294956208 18446744073709551615 134568017 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 8720 6428 56 166 0 8551 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 34880

[startup+0.701298 s]
/proc/loadavg: 0.99 0.98 1.00 3/64 30900
/proc/meminfo: memFree=802280/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=45732 CPUtime=0.69
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 10087 0 0 0 65 4 0 0 22 0 1 0 319257682 46829568 9057 1992294400 134512640 135192793 4294956208 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 11433 9058 56 166 0 11264 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 45732

[startup+1.50139 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 30901
/proc/meminfo: memFree=759584/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=63260 CPUtime=1.49
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 15666 0 0 0 141 8 0 0 25 0 1 0 319257682 64778240 13602 1992294400 134512640 135192793 4294956208 18446744073709551615 134524905 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 15815 13602 57 166 0 15646 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 63260

[startup+3.10156 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 30901
/proc/meminfo: memFree=747296/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=63524 CPUtime=3.09
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 15838 0 0 0 300 9 0 0 25 0 1 0 319257682 65048576 13774 1992294400 134512640 135192793 4294956208 18446744073709551615 134552256 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 15881 13774 72 166 0 15712 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 63524

[startup+6.30192 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 30901
/proc/meminfo: memFree=746912/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=63656 CPUtime=6.29
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 15872 0 0 0 620 9 0 0 25 0 1 0 319257682 65183744 13808 1992294400 134512640 135192793 4294956208 18446744073709551615 134552256 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 15914 13808 72 166 0 15745 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 63656

[startup+12.7016 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 30901
/proc/meminfo: memFree=746280/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=64184 CPUtime=12.69
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 16022 0 0 0 1260 9 0 0 25 0 1 0 319257682 65724416 13958 1992294400 134512640 135192793 4294956208 18446744073709551615 134552264 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 16046 13958 72 166 0 15877 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 64184

[startup+25.501 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 30901
/proc/meminfo: memFree=745896/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=64580 CPUtime=25.48
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 16104 0 0 0 2539 9 0 0 25 0 1 0 319257682 66129920 14040 1992294400 134512640 135192793 4294956208 18446744073709551615 134552256 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 16145 14040 72 166 0 15976 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 64580

[startup+51.1019 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 30901
/proc/meminfo: memFree=745768/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=64844 CPUtime=51.08
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 16177 0 0 0 5099 9 0 0 25 0 1 0 319257682 66400256 14113 1992294400 134512640 135192793 4294956208 18446744073709551615 134534326 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 16211 14113 72 166 0 16042 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 64844

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

[startup+57.5016 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 30901
/proc/meminfo: memFree=745704/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=64844 CPUtime=57.47
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 16189 0 0 0 5738 9 0 0 25 0 1 0 319257682 66400256 14125 1992294400 134512640 135192793 4294956208 18446744073709551615 134552291 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 16211 14125 72 166 0 16042 0
Current children cumulated CPU time (s) 57.47
Current children cumulated vsize (KiB) 64844

[startup+63.9013 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 30901
/proc/meminfo: memFree=745704/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=64976 CPUtime=63.87
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 16201 0 0 0 6378 9 0 0 25 0 1 0 319257682 66535424 14137 1992294400 134512640 135192793 4294956208 18446744073709551615 134552309 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 16244 14137 72 166 0 16075 0
Current children cumulated CPU time (s) 63.87
Current children cumulated vsize (KiB) 64976

[startup+67.1056 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 30901
/proc/meminfo: memFree=745704/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=64976 CPUtime=67.08
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 16208 0 0 0 6699 9 0 0 25 0 1 0 319257682 66535424 14144 1992294400 134512640 135192793 4294956208 18446744073709551615 134552256 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 16244 14144 72 166 0 16075 0
Current children cumulated CPU time (s) 67.08
Current children cumulated vsize (KiB) 64976

[startup+68.7018 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 30901
/proc/meminfo: memFree=745704/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=64976 CPUtime=68.67
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 16210 0 0 0 6858 9 0 0 25 0 1 0 319257682 66535424 14146 1992294400 134512640 135192793 4294956208 18446744073709551615 134533834 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 16244 14146 72 166 0 16075 0
Current children cumulated CPU time (s) 68.67
Current children cumulated vsize (KiB) 64976

[startup+69.1019 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 30901
/proc/meminfo: memFree=745704/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=64976 CPUtime=69.07
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 16211 0 0 0 6898 9 0 0 25 0 1 0 319257682 66535424 14147 1992294400 134512640 135192793 4294956208 18446744073709551615 134551939 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 16244 14147 72 166 0 16075 0
Current children cumulated CPU time (s) 69.07
Current children cumulated vsize (KiB) 64976

[startup+69.3059 s]
/proc/loadavg: 0.99 0.98 1.00 2/65 30901
/proc/meminfo: memFree=745704/2055920 swapFree=4181692/4192956
[pid=30900] ppid=30898 vsize=64976 CPUtime=69.28
/proc/30900/stat : 30900 (mxc-sat09) R 30898 30900 30555 0 -1 4194304 16211 0 0 0 6919 9 0 0 25 0 1 0 319257682 66535424 14147 1992294400 134512640 135192793 4294956208 18446744073709551615 134533227 0 0 4096 0 0 0 0 17 1 0 0
/proc/30900/statm: 16244 14147 72 166 0 16075 0
Current children cumulated CPU time (s) 69.28
Current children cumulated vsize (KiB) 64976

Child status: 20
Real time (s): 69.3836
CPU time (s): 69.3665
CPU user time (s): 69.2585
CPU system time (s): 0.107983
CPU usage (%): 99.9753
Max. virtual memory (cumulated for all children) (KiB): 64976

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 69.2585
system time used= 0.107983
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16216
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= 144

runsolver used 0.054991 second user time and 0.163975 second system time

The end

Launcher Data 

Begin job on node42 at 2009-04-03 11:22:43
IDJOB=1556791
IDBENCH=70826
IDSOLVER=504
FILE ID=node42/1556791-1238750563
PBS_JOBID= 9085428
Free space on /tmp= 66540 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/APPLICATIONS/crypto/md5gen/gus-md5-05.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1556791-1238750563/watcher-1556791-1238750563 -o /tmp/evaluation-result-1556791-1238750563/solver-1556791-1238750563 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/mxc-sat09 -i HOME/instance-1556791-1238750563.cnf

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

MD5SUM BENCH= 2802e980ef7a0af021d80df126a2e28c
RANDOM SEED=1684516426

node42.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		: 3000.211
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		: 3000.211
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:        802696 kB
Buffers:        123160 kB
Cached:        1018884 kB
SwapCached:       5184 kB
Active:         276176 kB
Inactive:       874356 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        802696 kB
SwapTotal:     4192956 kB
SwapFree:      4181692 kB
Dirty:            4740 kB
Writeback:           0 kB
Mapped:          14228 kB
Slab:            88740 kB
Committed_AS:  1235328 kB
PageTables:       1388 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= 66540 MiB
End job on node42 at 2009-04-03 11:23:52