Trace number 300492

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 119.641 119.675

General information on the benchmark

Namerandom/LargeSize/5SAT/v800/
unif-k5-r20-v800-c16000-S411047518-16.cnf
MD5SUMf0ccec97eb6dea6d270c850986623670
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark9.78951
Satisfiable
(Un)Satisfiability was proved
Number of variables800
Number of clauses16000
Sum of the clauses size80000
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 516000
Number of clauses of size over 50

Solver Data (download as text)

119.42/119.53	*** glibc detected *** double free or corruption (out): 0x0a1b8ec8 ***

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/node13/watcher-300492-1171909287 -o ROOT/results/node13/solver-300492-1171909287 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/300492-1171909287/mmisat /tmp/evaluation/300492-1171909287/instance-300492-1171909287.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: 1.02 1.04 1.63 3/77 31178
/proc/meminfo: memFree=1355504/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=1176 CPUtime=0
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 159 0 0 0 0 0 0 0 18 0 1 0 210883159 1204224 142 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 294 142 81 214 0 76 0

[startup+0.1073 s]
/proc/loadavg: 1.02 1.04 1.63 3/77 31178
/proc/meminfo: memFree=1355504/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=1840 CPUtime=0.1
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 319 0 0 0 10 0 0 0 18 0 1 0 210883159 1884160 302 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 460 302 81 214 0 242 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1840

[startup+0.515354 s]
/proc/loadavg: 1.02 1.04 1.63 3/77 31178
/proc/meminfo: memFree=1355504/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=2764 CPUtime=0.51
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 569 0 0 0 51 0 0 0 21 0 1 0 210883159 2830336 552 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517196 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 691 552 81 214 0 473 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 2764

[startup+1.33546 s]
/proc/loadavg: 1.02 1.04 1.63 2/78 31179
/proc/meminfo: memFree=1352744/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=3952 CPUtime=1.33
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 849 0 0 0 133 0 0 0 25 0 1 0 210883159 4046848 832 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 988 832 81 214 0 770 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 3952

[startup+2.97168 s]
/proc/loadavg: 1.01 1.04 1.62 2/78 31179
/proc/meminfo: memFree=1351464/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=5272 CPUtime=2.96
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 1181 0 0 0 296 0 0 0 25 0 1 0 210883159 5398528 1164 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 1318 1164 81 214 0 1100 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 5272

[startup+6.25412 s]
/proc/loadavg: 1.01 1.04 1.62 2/78 31179
/proc/meminfo: memFree=1349672/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=6724 CPUtime=6.25
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 1544 0 0 0 624 1 0 0 25 0 1 0 210883159 6885376 1527 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 1681 1527 81 214 0 1463 0
Current children cumulated CPU time (s) 6.25
Current children cumulated vsize (KiB) 6724

[startup+12.706 s]
/proc/loadavg: 1.01 1.04 1.62 2/78 31179
/proc/meminfo: memFree=1348272/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=7912 CPUtime=12.69
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 1827 0 0 0 1268 1 0 0 25 0 1 0 210883159 8101888 1810 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 1978 1810 81 214 0 1760 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 7912

[startup+25.5107 s]
/proc/loadavg: 1.01 1.04 1.61 2/78 31179
/proc/meminfo: memFree=1347320/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=8968 CPUtime=25.49
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 2093 0 0 0 2548 1 0 0 25 0 1 0 210883159 9183232 2076 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 2242 2076 81 214 0 2024 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 8968

[startup+51.1231 s]
/proc/loadavg: 1.00 1.03 1.59 2/78 31179
/proc/meminfo: memFree=1346040/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=10156 CPUtime=51.1
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 2406 0 0 0 5108 2 0 0 25 0 1 0 210883159 10399744 2389 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 2539 2389 81 214 0 2321 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 10156

[startup+102.346 s]
/proc/loadavg: 1.00 1.03 1.56 2/78 31179
/proc/meminfo: memFree=1344248/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=11872 CPUtime=102.3
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 2825 0 0 0 10228 2 0 0 25 0 1 0 210883159 12156928 2808 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 2968 2808 81 214 0 2750 0
Current children cumulated CPU time (s) 102.3
Current children cumulated vsize (KiB) 11872

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

[startup+104.908 s]
/proc/loadavg: 1.00 1.02 1.56 2/78 31179
/proc/meminfo: memFree=1344120/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=11872 CPUtime=104.86
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 2843 0 0 0 10484 2 0 0 25 0 1 0 210883159 12156928 2826 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 2968 2826 81 214 0 2750 0
Current children cumulated CPU time (s) 104.86
Current children cumulated vsize (KiB) 11872

[startup+111.462 s]
/proc/loadavg: 1.00 1.02 1.55 2/78 31179
/proc/meminfo: memFree=1343992/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=12136 CPUtime=111.43
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 2887 0 0 0 11140 3 0 0 25 0 1 0 210883159 12427264 2870 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 3034 2870 81 214 0 2816 0
Current children cumulated CPU time (s) 111.43
Current children cumulated vsize (KiB) 12136

[startup+114.739 s]
/proc/loadavg: 1.00 1.02 1.55 2/78 31179
/proc/meminfo: memFree=1321592/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=34364 CPUtime=114.69
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 8468 0 0 0 11464 5 0 0 25 0 1 0 210883159 35188736 8451 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523164 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 8591 8451 91 214 0 8373 0
Current children cumulated CPU time (s) 114.69
Current children cumulated vsize (KiB) 34364

[startup+118.022 s]
/proc/loadavg: 1.00 1.02 1.55 2/78 31179
/proc/meminfo: memFree=1321592/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=34364 CPUtime=117.98
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 8468 0 0 0 11792 6 0 0 25 0 1 0 210883159 35188736 8451 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523168 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 8591 8451 91 214 0 8373 0
Current children cumulated CPU time (s) 117.98
Current children cumulated vsize (KiB) 34364

[startup+118.842 s]
/proc/loadavg: 1.00 1.02 1.55 2/78 31179
/proc/meminfo: memFree=1321592/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=34364 CPUtime=118.8
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 8468 0 0 0 11874 6 0 0 25 0 1 0 210883159 35188736 8451 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523152 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 8591 8451 91 214 0 8373 0
Current children cumulated CPU time (s) 118.8
Current children cumulated vsize (KiB) 34364

[startup+119.25 s]
/proc/loadavg: 1.00 1.02 1.55 2/78 31179
/proc/meminfo: memFree=1321592/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=34364 CPUtime=119.21
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4194304 8468 0 0 0 11915 6 0 0 25 0 1 0 210883159 35188736 8451 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523607 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 8591 8451 91 214 0 8373 0
Current children cumulated CPU time (s) 119.21
Current children cumulated vsize (KiB) 34364

[startup+119.662 s]
/proc/loadavg: 1.00 1.02 1.55 2/78 31179
/proc/meminfo: memFree=1321592/2055920 swapFree=4192812/4192956
[pid=31178] ppid=31176 vsize=34364 CPUtime=119.61
/proc/31178/stat : 31178 (mmisat) R 31176 31178 30012 0 -1 4195840 8475 0 0 0 11943 18 0 0 25 0 1 0 210883159 35188736 8455 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135098577 0 0 4096 0 0 0 0 17 1 0 0
/proc/31178/statm: 8591 8455 95 214 0 8373 0
Current children cumulated CPU time (s) 119.61
Current children cumulated vsize (KiB) 34364

Child ended because it received signal 6 (SIGABRT)
Real time (s): 119.675
CPU time (s): 119.641
CPU user time (s): 119.44
CPU system time (s): 0.200969
CPU usage (%): 99.9717
Max. virtual memory (cumulated for all children) (KiB): 34364

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 119.44
system time used= 0.200969
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 8487
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= 8
involuntary context switches= 174

runsolver used 0.149977 second user time and 0.273958 second system time

The end

Launcher Data (download as text)

Begin job on node13 on Mon Feb 19 18:21:27 UTC 2007

IDJOB= 300492
IDBENCH= 20036
IDSOLVER= 108
FILE ID= node13/300492-1171909287

PBS_JOBID= 3848847

Free space on /tmp= 66545 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/LargeSize/5SAT/v800/unif-k5-r20-v800-c16000-S411047518-16.cnf
COMMAND LINE= /tmp/evaluation/300492-1171909287/mmisat /tmp/evaluation/300492-1171909287/instance-300492-1171909287.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node13/watcher-300492-1171909287 -o ROOT/results/node13/solver-300492-1171909287 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/300492-1171909287/mmisat /tmp/evaluation/300492-1171909287/instance-300492-1171909287.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  f0ccec97eb6dea6d270c850986623670

RANDOM SEED= 681230873

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node13.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		: 3000.236
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		: 3000.236
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:       1355912 kB
Buffers:         50328 kB
Cached:         515500 kB
SwapCached:          0 kB
Active:         154848 kB
Inactive:       465680 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1355912 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1552 kB
Writeback:           0 kB
Mapped:          73596 kB
Slab:            65024 kB
Committed_AS:   932656 kB
PageTables:       1744 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= 66513 MiB

End job on node13 on Mon Feb 19 18:23:27 UTC 2007