Trace number 309963

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
Mmisat 2007-02-08Signal 1.15682 1.17479

General information on the benchmark

Namerandom/2+p/p0.9/v1170/
unif2p-p0.9-v1170-c4235-S1449408666-02-SAT.cnf
MD5SUM555d3271dcf55d0b05dd23da8baa6ad3
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.05599
Satisfiable
(Un)Satisfiability was proved
Number of variables1170
Number of clauses4234
Sum of the clauses size12279
Maximum clause length3
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 2423
Number of clauses of size 33811
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data (download as text)



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/node24/watcher-309963-1172550779 -o ROOT/results/node24/solver-309963-1172550779 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/309963-1172550779/mmisat /tmp/evaluation/309963-1172550779/instance-309963-1172550779.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: 1.00 1.00 1.00 3/77 24511
/proc/meminfo: memFree=1825880/2055920 swapFree=4139416/4192956
[pid=24511] ppid=24509 vsize=1308 CPUtime=0
/proc/24511/stat : 24511 (mmisat) R 24509 24511 23134 0 -1 4194304 188 0 0 0 0 0 0 0 18 0 1 0 275032196 1339392 171 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/24511/statm: 327 171 81 214 0 109 0

[startup+0.10695 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 24511
/proc/meminfo: memFree=1825880/2055920 swapFree=4139416/4192956
[pid=24511] ppid=24509 vsize=2364 CPUtime=0.1
/proc/24511/stat : 24511 (mmisat) R 24509 24511 23134 0 -1 4194304 451 0 0 0 10 0 0 0 18 0 1 0 275032196 2420736 434 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/24511/statm: 591 434 81 214 0 373 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 2364

[startup+0.514993 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 24511
/proc/meminfo: memFree=1825880/2055920 swapFree=4139416/4192956
[pid=24511] ppid=24509 vsize=3948 CPUtime=0.51
/proc/24511/stat : 24511 (mmisat) R 24509 24511 23134 0 -1 4194304 864 0 0 0 51 0 0 0 21 0 1 0 275032196 4042752 847 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/24511/statm: 987 847 81 214 0 769 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3948

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

[startup+0.821026 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 24511
/proc/meminfo: memFree=1825880/2055920 swapFree=4139416/4192956
[pid=24511] ppid=24509 vsize=4740 CPUtime=0.81
/proc/24511/stat : 24511 (mmisat) R 24509 24511 23134 0 -1 4194304 1064 0 0 0 81 0 0 0 25 0 1 0 275032196 4853760 1047 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/24511/statm: 1185 1047 81 214 0 967 0
Current children cumulated CPU time (s) 0.81
Current children cumulated vsize (KiB) 4740

[startup+1.02505 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 24511
/proc/meminfo: memFree=1825880/2055920 swapFree=4139416/4192956
[pid=24511] ppid=24509 vsize=5172 CPUtime=1.01
/proc/24511/stat : 24511 (mmisat) R 24509 24511 23134 0 -1 4194304 1149 0 0 0 101 0 0 0 25 0 1 0 275032196 5296128 1132 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134524268 0 0 4096 0 0 0 0 17 1 0 0
/proc/24511/statm: 1293 1132 84 214 0 1075 0
Current children cumulated CPU time (s) 1.01
Current children cumulated vsize (KiB) 5172

[startup+1.12706 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 24512
/proc/meminfo: memFree=1816720/2055920 swapFree=4139416/4192956
[pid=24511] ppid=24509 vsize=9104 CPUtime=1.12
/proc/24511/stat : 24511 (mmisat) R 24509 24511 23134 0 -1 4195840 3129 0 0 0 110 2 0 0 25 0 1 0 275032196 9322496 2141 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134551852 0 0 4096 0 0 0 0 17 1 0 0
/proc/24511/statm: 2276 2141 86 214 0 2058 0
Current children cumulated CPU time (s) 1.12
Current children cumulated vsize (KiB) 9104

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 1.17479
CPU time (s): 1.15682
CPU user time (s): 1.10883
CPU system time (s): 0.047992
CPU usage (%): 98.4702
Max. virtual memory (cumulated for all children) (KiB): 9104

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.10883
system time used= 0.047992
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3131
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= 7
involuntary context switches= 13

runsolver used 0.001999 second user time and 0.010998 second system time

The end



Launcher Data (download as text)




Begin job on node24 on Tue Feb 27 04:32:59 UTC 2007

IDJOB= 309963
IDBENCH= 20274
IDSOLVER= 108
FILE ID= node24/309963-1172550779

PBS_JOBID= 3971841

Free space on /tmp= 66560 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/2+p/p0.9/v1170/unif2p-p0.9-v1170-c4235-S1449408666-02-SAT.cnf
COMMAND LINE= /tmp/evaluation/309963-1172550779/mmisat /tmp/evaluation/309963-1172550779/instance-309963-1172550779.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node24/watcher-309963-1172550779 -o ROOT/results/node24/solver-309963-1172550779 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/309963-1172550779/mmisat /tmp/evaluation/309963-1172550779/instance-309963-1172550779.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  555d3271dcf55d0b05dd23da8baa6ad3

RANDOM SEED= 453945018

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node24.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		: 3000.232
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		: 3000.232
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:       1826288 kB
Buffers:         27060 kB
Cached:         148992 kB
SwapCached:       8772 kB
Active:          73672 kB
Inactive:       117352 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1826288 kB
SwapTotal:     4192956 kB
SwapFree:      4139416 kB
Dirty:            1160 kB
Writeback:           0 kB
Mapped:          15764 kB
Slab:            24188 kB
Committed_AS:   772804 kB
PageTables:       1732 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= 66552 MiB

End job on node24 on Tue Feb 27 04:33:00 UTC 2007