Trace number 311189

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, and are wall clock time (not CPU 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
Rsat 2007-02-08? (exit code) 0.265959 0.267375

General information on the benchmark

Namerandom/2+p/p0.8/v2035/
unif2p-p0.8-v2035-c6328-S68128341-07-UNSAT.cnf
MD5SUM54c1eff6d0c1d0b678598195ef471075
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmark
Best CPU time to get the best result obtained on this benchmark
Satisfiable
(Un)Satisfiability was proved
Number of variables2034
Number of clauses6327
Sum of the clauses size17716
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 21265
Number of clauses of size 35062
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)

0.00/0.00	c Parsing...
0.00/0.00	c ==============================================================================
0.00/0.00	c |           |     ORIGINAL     |              LEARNT              |          |
0.00/0.00	c | Conflicts | Clauses Literals |   Limit Clauses Literals  Lit/Cl | Progress |
0.00/0.00	c ==============================================================================
0.00/0.00	c |         0 |    6327    17716 |    1898       0        0     nan |  0.000 % |
0.00/0.03	c |         0 |    5962    17799 |      --       0       --      -- |     --   | -365/83
0.00/0.03	c ==============================================================================
0.00/0.03	c Result  :   #vars: 1748   #clauses: 5962   #literals: 17799
0.00/0.03	c CPU time:   0.031995 s
0.00/0.03	c ==============================================================================
0.00/0.04	c Rsat version 2.00
0.03/0.26	c 
0.03/0.26	c 
0.03/0.26	c SEGMENTATION FAULT
0.03/0.26	c 
0.03/0.26	c CNF stats: (1748 vars, 5962 clauses)
0.03/0.26	c Decisions: 2807
0.03/0.26	c Conflicts: 2048

Verifier Data (download as text)

ERROR: Unexpected answer ! (SATISFIABLE/UNSATISFIABLE expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node4/watcher-311189-1172564913 -o ROOT/results/node4/solver-311189-1172564913 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/311189-1172564913/rsat.sh /tmp/evaluation/311189-1172564913/instance-311189-1172564913.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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: 0.91 0.95 0.98 3/77 23692
/proc/meminfo: memFree=1390184/2055920 swapFree=4192812/4192956
[pid=23692] ppid=23690 vsize=5352 CPUtime=0
/proc/23692/stat : 23692 (rsat.sh) S 23690 23692 23545 0 -1 4194304 283 0 0 0 0 0 0 0 18 0 1 0 276446185 5480448 232 18446744073709551615 4194304 4889804 548682069312 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 1 0 0
/proc/23692/statm: 1338 232 195 169 0 49 0
[pid=23693] ppid=23692 vsize=1112 CPUtime=0
/proc/23693/stat : 23693 (SatElite) R 23692 23692 23545 0 -1 4194304 182 0 0 0 0 0 0 0 19 0 1 0 276446185 1138688 164 18446744073709551615 134512640 135038345 4294956752 18446744073709551615 134681971 0 0 4096 3 0 0 0 17 1 0 0
/proc/23693/statm: 278 165 49 128 0 147 0

[startup+0.107424 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 23692
/proc/meminfo: memFree=1390184/2055920 swapFree=4192812/4192956
[pid=23692] ppid=23690 vsize=5352 CPUtime=0.03
/proc/23692/stat : 23692 (rsat.sh) S 23690 23692 23545 0 -1 4194304 305 349 0 0 0 0 3 0 16 0 1 0 276446185 5480448 234 18446744073709551615 4194304 4889804 548682069312 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/23692/statm: 1338 234 195 169 0 49 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5352

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

[startup+0.210434 s]
/proc/loadavg: 0.91 0.95 0.98 3/77 23692
/proc/meminfo: memFree=1390184/2055920 swapFree=4192812/4192956
[pid=23692] ppid=23690 vsize=5352 CPUtime=0.03
/proc/23692/stat : 23692 (rsat.sh) S 23690 23692 23545 0 -1 4194304 305 349 0 0 0 0 3 0 16 0 1 0 276446185 5480448 234 18446744073709551615 4194304 4889804 548682069312 18446744073709551615 259913212740 0 65536 4100 65538 18446744071563356171 0 0 17 0 0 0
/proc/23692/statm: 1338 234 195 169 0 49 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 5352

Child status: 3
Real time (s): 0.267375
CPU time (s): 0.265959
CPU user time (s): 0.254961
CPU system time (s): 0.010998
CPU usage (%): 99.4704
Max. virtual memory (cumulated for all children) (KiB): 5352

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.254961
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1129
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= 26
involuntary context switches= 5

runsolver used 0.001999 second user time and 0.007998 second system time

The end

Launcher Data (download as text)

Begin job on node4 on Tue Feb 27 08:28:33 UTC 2007

IDJOB= 311189
IDBENCH= 20307
IDSOLVER= 104
FILE ID= node4/311189-1172564913

PBS_JOBID= 3971672

Free space on /tmp= 66553 MiB

SOLVER NAME= Rsat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.8/v2035/unif2p-p0.8-v2035-c6328-S68128341-07-UNSAT.cnf
COMMAND LINE= /tmp/evaluation/311189-1172564913/rsat.sh /tmp/evaluation/311189-1172564913/instance-311189-1172564913.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node4/watcher-311189-1172564913 -o ROOT/results/node4/solver-311189-1172564913 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/311189-1172564913/rsat.sh /tmp/evaluation/311189-1172564913/instance-311189-1172564913.cnf            

META MD5SUM SOLVER= 42fb71d21991acbdd759c16645f65450
MD5SUM BENCH=  54c1eff6d0c1d0b678598195ef471075

RANDOM SEED= 113304256

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node4.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.231
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		: 3000.231
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:       1390656 kB
Buffers:         60808 kB
Cached:         466532 kB
SwapCached:          0 kB
Active:         288292 kB
Inactive:       298652 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1390656 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1788 kB
Writeback:           0 kB
Mapped:          78528 kB
Slab:            63904 kB
Committed_AS:  1075712 kB
PageTables:       1768 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= 66555 MiB

End job on node4 on Tue Feb 27 08:28:34 UTC 2007