Trace number 1784525

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 2009-03-10SAT 0.06099 0.060147

General information on the benchmark

NameCRAFTED/parity-games/
instance_n4_i4_pp_ci_ce.cnf
MD5SUM91bf0f1cf73f97e8e8862cc30d68727a
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.012997
Satisfiable
(Un)Satisfiability was proved
Number of variables1572
Number of clauses9175
Sum of the clauses size28832
Maximum clause length12
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 22524
Number of clauses of size 33596
Number of clauses of size 42300
Number of clauses of size 5752
Number of clauses of size over 53

Solver Data 

0.00/0.05	c starting MXC with:
0.00/0.05	c cnf_path = HOME/instance-1784525-1241948753.cnf
0.00/0.05	c restart_strategy = auto
0.00/0.05	c sign_strategy = cached
0.00/0.05	c use_preprocessing = -1
0.00/0.05	c output_implicant = 1
0.00/0.05	c timeout_seconds = 0
0.00/0.05	c running SatELite... done
0.00/0.05	c 517 vars eliminated
0.00/0.05	c received 32 units and 6803 clauses from SatELite
0.00/0.05	c 548 assignments made, starting to guess now
0.00/0.05	c ===================================[MXC]=====================================
0.00/0.05	c | Conflicts |                Clause Statistics                   |   Vars   |
0.00/0.05	c |           |    CARD     BIN      O3+      L3+   L3+Lim  Lit/CL |          |
0.00/0.05	c =============================================================================
0.00/0.05	c |         0 |       0    1780     5023        0        0     nan |     1572 |
0.00/0.05	c |       100 |       0    1783     5022       94     1050    14.7 |     1023 |
0.00/0.05	c |       210 |       0    1786     5022      201     1105    14.4 |     1023 |
0.00/0.05	c |       441 |       0    1793     5022      425     1220    13.4 |     1023 |
0.00/0.05	c |       471 |       0    1793     5022      455     1235    13.1 |     1023 |
0.00/0.05	c ----- stats for thread 0 -----
0.00/0.05	c restarts: 4
0.00/0.05	c decisions: 1024
0.00/0.05	c propagations: 69758
0.00/0.05	c conflicts: 471
0.00/0.05	c 0.058s elapsed
0.00/0.05	s SATISFIABLE
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Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1784525-1241948753/watcher-1784525-1241948753 -o /tmp/evaluation-result-1784525-1241948753/solver-1784525-1241948753 -C 5000 -W 6000 -M 1800 HOME/mxc-sat09 -i HOME/instance-1784525-1241948753.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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: 0.99 0.97 0.99 3/64 30062
/proc/meminfo: memFree=1591984/2055920 swapFree=4164048/4192956
[pid=30062] ppid=30060 vsize=1412 CPUtime=0
/proc/30062/stat : 30062 (mxc-sat09) R 30060 30062 29372 0 -1 4194304 242 0 0 0 0 0 0 0 18 0 1 0 222903351 1445888 228 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 353 228 54 166 0 184 0

[startup+0.00926106 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 30062
/proc/meminfo: memFree=1591984/2055920 swapFree=4164048/4192956
[pid=30062] ppid=30060 vsize=1700 CPUtime=0
/proc/30062/stat : 30062 (mxc-sat09) R 30060 30062 29372 0 -1 4194304 314 0 0 0 0 0 0 0 18 0 1 0 222903351 1740800 301 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 425 301 54 166 0 256 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1700

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

[startup+0.00926106 s]
/proc/loadavg: 0.99 0.97 0.99 3/64 30062
/proc/meminfo: memFree=1591984/2055920 swapFree=4164048/4192956
[pid=30062] ppid=30060 vsize=1700 CPUtime=0
/proc/30062/stat : 30062 (mxc-sat09) R 30060 30062 29372 0 -1 4194304 314 0 0 0 0 0 0 0 18 0 1 0 222903351 1740800 301 1992294400 134512640 135192793 4294956224 18446744073709551615 134750438 0 0 4096 0 0 0 0 17 1 0 0
/proc/30062/statm: 425 301 54 166 0 256 0
Current children cumulated CPU time (s) 0
Current children cumulated vsize (KiB) 1700

Child status: 10
Real time (s): 0.060147
CPU time (s): 0.06099
CPU user time (s): 0.057991
CPU system time (s): 0.002999
CPU usage (%): 101.402
Max. virtual memory (cumulated for all children) (KiB): 1700

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.057991
system time used= 0.002999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 550
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= 5
involuntary context switches= 0

runsolver used 0.002999 second user time and 0.004999 second system time

The end

Launcher Data 

Begin job on node50 at 2009-05-10 11:45:53
IDJOB=1784525
IDBENCH=71632
IDSOLVER=613
FILE ID=node50/1784525-1241948753
PBS_JOBID= 9265044
Free space on /tmp= 66368 MiB

SOLVER NAME= MXC 2009-03-10
BENCH NAME= SAT09/CRAFTED/parity-games/instance_n4_i4_pp_ci_ce.cnf
COMMAND LINE= HOME/mxc-sat09 -i BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1784525-1241948753/watcher-1784525-1241948753 -o /tmp/evaluation-result-1784525-1241948753/solver-1784525-1241948753 -C 5000 -W 6000 -M 1800  HOME/mxc-sat09 -i HOME/instance-1784525-1241948753.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 91bf0f1cf73f97e8e8862cc30d68727a
RANDOM SEED=1552013630

node50.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		: 3000.216
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		: 3000.216
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:       1592464 kB
Buffers:         54156 kB
Cached:         337512 kB
SwapCached:      23676 kB
Active:         251072 kB
Inactive:       166180 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1592464 kB
SwapTotal:     4192956 kB
SwapFree:      4164048 kB
Dirty:             836 kB
Writeback:           0 kB
Mapped:          13796 kB
Slab:            32204 kB
Committed_AS:   679224 kB
PageTables:       1448 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= 66368 MiB
End job on node50 at 2009-05-10 11:45:53