Trace number 337604

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 1.03784 1.0389

General information on the benchmark

Namecrafted/Hard/contest03/looksrandom/
hidden-k3-s0-r5-n700-02-S350203913.sat05-486.reshuffled-07.cnf
MD5SUMd27bb4ae488674c0e5d303cf0ee23c59
Bench CategoryCRAFTED (crafted 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 variables700
Number of clauses3500
Sum of the clauses size10500
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 33500
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 3.2.1 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node66/watcher-337604-1173670573 -o ROOT/results/node66/solver-337604-1173670573 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/337604-1173670573/mmisat /tmp/evaluation/337604-1173670573/instance-337604-1173670573.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): 2400 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 1.02 3/64 9021
/proc/meminfo: memFree=1818976/2055920 swapFree=4183892/4192956
[pid=9021] ppid=9019 vsize=1176 CPUtime=0
/proc/9021/stat : 9021 (mmisat) R 9019 9021 8247 0 -1 4194304 160 0 0 0 0 0 0 0 18 0 1 0 387014817 1204224 143 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/9021/statm: 294 143 81 214 0 76 0

[startup+0.0437481 s]
/proc/loadavg: 0.99 0.98 1.02 3/64 9021
/proc/meminfo: memFree=1818976/2055920 swapFree=4183892/4192956
[pid=9021] ppid=9019 vsize=1572 CPUtime=0.04
/proc/9021/stat : 9021 (mmisat) R 9019 9021 8247 0 -1 4194304 257 0 0 0 4 0 0 0 18 0 1 0 387014817 1609728 240 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/9021/statm: 393 240 81 214 0 175 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1572

[startup+0.102758 s]
/proc/loadavg: 0.99 0.98 1.02 3/64 9021
/proc/meminfo: memFree=1818976/2055920 swapFree=4183892/4192956
[pid=9021] ppid=9019 vsize=1836 CPUtime=0.09
/proc/9021/stat : 9021 (mmisat) R 9019 9021 8247 0 -1 4194304 337 0 0 0 9 0 0 0 18 0 1 0 387014817 1880064 320 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/9021/statm: 459 320 81 214 0 241 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1836

[startup+0.301799 s]
/proc/loadavg: 0.99 0.98 1.02 3/64 9021
/proc/meminfo: memFree=1818976/2055920 swapFree=4183892/4192956
[pid=9021] ppid=9019 vsize=2496 CPUtime=0.29
/proc/9021/stat : 9021 (mmisat) R 9019 9021 8247 0 -1 4194304 501 0 0 0 29 0 0 0 19 0 1 0 387014817 2555904 484 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/9021/statm: 624 484 81 214 0 406 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2496

[startup+0.70188 s]
/proc/loadavg: 0.99 0.98 1.02 3/64 9021
/proc/meminfo: memFree=1818976/2055920 swapFree=4183892/4192956
[pid=9021] ppid=9019 vsize=6308 CPUtime=0.69
/proc/9021/stat : 9021 (mmisat) R 9019 9021 8247 0 -1 4194304 1961 0 0 0 69 0 0 0 22 0 1 0 387014817 6459392 1423 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134554405 0 0 4096 0 0 0 0 17 1 0 0
/proc/9021/statm: 1577 1423 87 214 0 1359 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 6308

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

[startup+0.90192 s]
/proc/loadavg: 0.99 0.98 1.02 3/64 9021
/proc/meminfo: memFree=1818976/2055920 swapFree=4183892/4192956
[pid=9021] ppid=9019 vsize=10764 CPUtime=0.89
/proc/9021/stat : 9021 (mmisat) R 9019 9021 8247 0 -1 4194304 3598 0 0 0 88 1 0 0 24 0 1 0 387014817 11022336 2540 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134524268 0 0 4096 0 0 0 0 17 1 0 0
/proc/9021/statm: 2691 2540 91 214 0 2473 0
Current children cumulated CPU time (s) 0.89
Current children cumulated vsize (KiB) 10764

[startup+1.00194 s]
/proc/loadavg: 0.99 0.98 1.02 2/65 9022
/proc/meminfo: memFree=1808024/2055920 swapFree=4183892/4192956
[pid=9021] ppid=9019 vsize=10776 CPUtime=0.99
/proc/9021/stat : 9021 (mmisat) R 9019 9021 8247 0 -1 4195840 3615 0 0 0 97 2 0 0 25 0 1 0 387014817 11034624 2554 18446744073709551615 134512640 135391789 4294956720 18446744073709551615 134523158 0 0 4096 0 0 0 0 17 1 0 0
/proc/9021/statm: 2694 2554 91 214 0 2476 0
Current children cumulated CPU time (s) 0.99
Current children cumulated vsize (KiB) 10776

Child ended because it received signal 11 (SIGSEGV)
Real time (s): 1.0389
CPU time (s): 1.03784
CPU user time (s): 0.979851
CPU system time (s): 0.057991
CPU usage (%): 99.8982
Max. virtual memory (cumulated for all children) (KiB): 10776

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 0.979851
system time used= 0.057991
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 3627
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= 6
involuntary context switches= 3

runsolver used 0.002999 second user time and 0.008998 second system time

The end



Launcher Data (download as text)




Begin job on node66 on Mon Mar 12 03:36:13 UTC 2007

IDJOB= 337604
IDBENCH= 24703
IDSOLVER= 108
FILE ID= node66/337604-1173670573

PBS_JOBID= 4101714

Free space on /tmp= 66548 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/crafted/Hard/contest03/looksrandom/hidden-k3-s0-r5-n700-02-S350203913.sat05-486.reshuffled-07.cnf
COMMAND LINE= /tmp/evaluation/337604-1173670573/mmisat /tmp/evaluation/337604-1173670573/instance-337604-1173670573.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node66/watcher-337604-1173670573 -o ROOT/results/node66/solver-337604-1173670573 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/337604-1173670573/mmisat /tmp/evaluation/337604-1173670573/instance-337604-1173670573.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  d27bb4ae488674c0e5d303cf0ee23c59

RANDOM SEED= 437596829

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node66.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		: 3000.259
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	: 5931.00
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		: 3000.259
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:       1819448 kB
Buffers:         27812 kB
Cached:         160876 kB
SwapCached:       3344 kB
Active:          75324 kB
Inactive:       123600 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1819448 kB
SwapTotal:     4192956 kB
SwapFree:      4183892 kB
Dirty:            1144 kB
Writeback:           0 kB
Mapped:          15532 kB
Slab:            23652 kB
Committed_AS:   818124 kB
PageTables:       1376 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= 66538 MiB

End job on node66 on Mon Mar 12 03:36:14 UTC 2007