Trace number 301599

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 256.843 256.91

General information on the benchmark

Namerandom/LargeSize/5SAT/v1000/
unif-k5-r20-v1000-c20000-S406284248-03.cnf
MD5SUMfbd5031feeefb5afb2663296d251bb8b
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark109.458
Satisfiable
(Un)Satisfiability was proved
Number of variables1000
Number of clauses20000
Sum of the clauses size100000
Maximum clause length5
Minimum clause length5
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 520000
Number of clauses of size over 50

Solver Data (download as text)

256.34/256.48	*** glibc detected *** free(): invalid next size (normal): 0x0e651990 ***

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/node2/watcher-301599-1171980273 -o ROOT/results/node2/solver-301599-1171980273 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/301599-1171980273/mmisat /tmp/evaluation/301599-1171980273/instance-301599-1171980273.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: 0.92 0.98 0.99 3/77 12184
/proc/meminfo: memFree=436912/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=1176 CPUtime=0
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 169 0 0 0 0 0 0 0 18 0 1 0 217982242 1204224 152 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 294 152 81 214 0 76 0

[startup+0.107385 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 12184
/proc/meminfo: memFree=436912/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=1972 CPUtime=0.1
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 358 0 0 0 10 0 0 0 18 0 1 0 217982242 2019328 341 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 493 341 81 214 0 275 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1972

[startup+0.517429 s]
/proc/loadavg: 0.92 0.98 0.99 3/77 12184
/proc/meminfo: memFree=436912/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=3160 CPUtime=0.51
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 659 0 0 0 51 0 0 0 21 0 1 0 217982242 3235840 642 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 790 642 81 214 0 572 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 3160

[startup+1.34351 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 12185
/proc/meminfo: memFree=433576/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=4480 CPUtime=1.34
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 994 0 0 0 134 0 0 0 25 0 1 0 217982242 4587520 977 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517196 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 1120 977 81 214 0 902 0
Current children cumulated CPU time (s) 1.34
Current children cumulated vsize (KiB) 4480

[startup+2.97968 s]
/proc/loadavg: 0.92 0.98 0.99 2/78 12185
/proc/meminfo: memFree=432104/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=6196 CPUtime=2.97
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 1401 0 0 0 297 0 0 0 25 0 1 0 217982242 6344704 1384 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 1549 1384 81 214 0 1331 0
Current children cumulated CPU time (s) 2.97
Current children cumulated vsize (KiB) 6196

[startup+6.25602 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 12185
/proc/meminfo: memFree=430184/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=7648 CPUtime=6.24
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 1775 0 0 0 624 0 0 0 25 0 1 0 217982242 7831552 1758 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517732 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 1912 1758 81 214 0 1694 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 7648

[startup+12.7117 s]
/proc/loadavg: 0.93 0.98 0.99 2/78 12185
/proc/meminfo: memFree=428520/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=9100 CPUtime=12.7
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 2131 0 0 0 1270 0 0 0 25 0 1 0 217982242 9318400 2114 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 2275 2114 81 214 0 2057 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 9100

[startup+25.512 s]
/proc/loadavg: 0.95 0.98 0.99 2/78 12185
/proc/meminfo: memFree=427112/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=10552 CPUtime=25.49
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 2486 0 0 0 2549 0 0 0 25 0 1 0 217982242 10805248 2469 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517712 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 2638 2469 81 214 0 2420 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 10552

[startup+51.1247 s]
/proc/loadavg: 0.96 0.98 0.99 2/78 12185
/proc/meminfo: memFree=425384/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=12136 CPUtime=51.11
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 2896 0 0 0 5109 2 0 0 25 0 1 0 217982242 12427264 2879 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 3034 2879 81 214 0 2816 0
Current children cumulated CPU time (s) 51.11
Current children cumulated vsize (KiB) 12136

[startup+102.346 s]
/proc/loadavg: 0.98 0.98 0.99 2/78 12185
/proc/meminfo: memFree=423272/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=14248 CPUtime=102.31
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 3430 0 0 0 10228 3 0 0 25 0 1 0 217982242 14589952 3413 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 3562 3413 81 214 0 3344 0
Current children cumulated CPU time (s) 102.31
Current children cumulated vsize (KiB) 14248

[startup+162.379 s]
/proc/loadavg: 1.04 1.00 0.99 2/78 12185
/proc/meminfo: memFree=421288/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=16096 CPUtime=162.33
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 3901 0 0 0 16229 4 0 0 25 0 1 0 217982242 16482304 3884 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 4024 3884 81 214 0 3806 0
Current children cumulated CPU time (s) 162.33
Current children cumulated vsize (KiB) 16096

[startup+222.408 s]
/proc/loadavg: 1.01 1.00 0.99 2/78 12185
/proc/meminfo: memFree=419688/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=17680 CPUtime=222.34
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 4292 0 0 0 22230 4 0 0 25 0 1 0 217982242 18104320 4275 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 4420 4275 81 214 0 4202 0
Current children cumulated CPU time (s) 222.34
Current children cumulated vsize (KiB) 17680

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

[startup+236.037 s]
/proc/loadavg: 1.01 1.00 0.99 2/78 12185
/proc/meminfo: memFree=385320/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=52040 CPUtime=235.96
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 12886 0 0 0 23589 7 0 0 25 0 1 0 217982242 53288960 12869 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134553315 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 13010 12869 86 214 0 12792 0
Current children cumulated CPU time (s) 235.96
Current children cumulated vsize (KiB) 52040

[startup+249.151 s]
/proc/loadavg: 1.01 1.00 0.99 2/78 12185
/proc/meminfo: memFree=351208/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=86140 CPUtime=249.07
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 21392 0 0 0 24897 10 0 0 25 0 1 0 217982242 88207360 21375 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134542622 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 21535 21375 91 214 0 21317 0
Current children cumulated CPU time (s) 249.07
Current children cumulated vsize (KiB) 86140

[startup+252.425 s]
/proc/loadavg: 1.01 1.00 0.99 2/78 12185
/proc/meminfo: memFree=351208/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=86140 CPUtime=252.36
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 21392 0 0 0 25225 11 0 0 25 0 1 0 217982242 88207360 21375 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523585 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 21535 21375 91 214 0 21317 0
Current children cumulated CPU time (s) 252.36
Current children cumulated vsize (KiB) 86140

[startup+254.065 s]
/proc/loadavg: 1.00 1.00 0.99 2/78 12185
/proc/meminfo: memFree=351208/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=86140 CPUtime=253.99
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 21392 0 0 0 25388 11 0 0 25 0 1 0 217982242 88207360 21375 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523161 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 21535 21375 91 214 0 21317 0
Current children cumulated CPU time (s) 253.99
Current children cumulated vsize (KiB) 86140

[startup+255.701 s]
/proc/loadavg: 1.00 1.00 0.99 2/78 12185
/proc/meminfo: memFree=351208/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=103084 CPUtime=255.62
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4194304 29852 0 0 0 25549 13 0 0 25 0 1 0 217982242 105558016 25641 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134522790 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 25771 25641 91 214 0 25553 0
Current children cumulated CPU time (s) 255.62
Current children cumulated vsize (KiB) 103084

[startup+256.521 s]
/proc/loadavg: 1.00 1.00 0.99 2/78 12185
/proc/meminfo: memFree=333864/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=104680 CPUtime=256.45
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4195840 30245 0 0 0 25628 17 0 0 25 0 1 0 217982242 107192320 26031 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135098577 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 26170 26031 95 214 0 25952 0
Current children cumulated CPU time (s) 256.45
Current children cumulated vsize (KiB) 104680

[startup+256.725 s]
/proc/loadavg: 1.00 1.00 0.99 2/78 12185
/proc/meminfo: memFree=333864/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=104680 CPUtime=256.65
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4195840 30245 0 0 0 25628 37 0 0 25 0 1 0 217982242 107192320 26031 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135098577 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 26170 26031 95 214 0 25952 0
Current children cumulated CPU time (s) 256.65
Current children cumulated vsize (KiB) 104680

[startup+256.827 s]
/proc/loadavg: 1.00 1.00 0.99 2/78 12185
/proc/meminfo: memFree=333864/2055920 swapFree=4192812/4192956
[pid=12184] ppid=12182 vsize=104680 CPUtime=256.76
/proc/12184/stat : 12184 (mmisat) R 12182 12184 11170 0 -1 4195840 30245 0 0 0 25628 48 0 0 25 0 1 0 217982242 107192320 26031 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135098577 0 0 4096 0 0 0 0 17 1 0 0
/proc/12184/statm: 26170 26031 95 214 0 25952 0
Current children cumulated CPU time (s) 256.76
Current children cumulated vsize (KiB) 104680

Child ended because it received signal 6 (SIGABRT)
Real time (s): 256.91
CPU time (s): 256.843
CPU user time (s): 256.28
CPU system time (s): 0.562914
CPU usage (%): 99.9741
Max. virtual memory (cumulated for all children) (KiB): 119948

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 256.28
system time used= 0.562914
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 30260
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= 285

runsolver used 0.291955 second user time and 0.611906 second system time

The end

Launcher Data (download as text)

Begin job on node2 on Tue Feb 20 14:04:33 UTC 2007

IDJOB= 301599
IDBENCH= 20063
IDSOLVER= 108
FILE ID= node2/301599-1171980273

PBS_JOBID= 3849049

Free space on /tmp= 66549 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/LargeSize/5SAT/v1000/unif-k5-r20-v1000-c20000-S406284248-03.cnf
COMMAND LINE= /tmp/evaluation/301599-1171980273/mmisat /tmp/evaluation/301599-1171980273/instance-301599-1171980273.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node2/watcher-301599-1171980273 -o ROOT/results/node2/solver-301599-1171980273 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/301599-1171980273/mmisat /tmp/evaluation/301599-1171980273/instance-301599-1171980273.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  fbd5031feeefb5afb2663296d251bb8b

RANDOM SEED= 546461124

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node2.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		: 3000.247
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		: 3000.247
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:        437320 kB
Buffers:         53336 kB
Cached:        1426548 kB
SwapCached:          0 kB
Active:         963968 kB
Inactive:       575792 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        437320 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1640 kB
Writeback:           0 kB
Mapped:          78784 kB
Slab:            64340 kB
Committed_AS:  1186836 kB
PageTables:       1812 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= 66448 MiB

End job on node2 on Tue Feb 20 14:08:50 UTC 2007