Trace number 301681

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 245.886 245.945

General information on the benchmark

Namerandom/LargeSize/5SAT/v1000/
unif-k5-r20-v1000-c20000-S683236487-13.cnf
MD5SUM4356efd851b4254135ae4efd766e660e
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 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)

245.60/245.73	*** glibc detected *** double free or corruption (out): 0x0b301d88 ***

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/node3/watcher-301681-1171985388 -o ROOT/results/node3/solver-301681-1171985388 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/301681-1171985388/mmisat /tmp/evaluation/301681-1171985388/instance-301681-1171985388.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 12129
/proc/meminfo: memFree=757736/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=1176 CPUtime=0
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 169 0 0 0 0 0 0 0 18 0 1 0 218493672 1204224 152 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134998823 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 294 152 81 214 0 76 0

[startup+0.1067 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 12129
/proc/meminfo: memFree=757736/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=1972 CPUtime=0.1
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 357 0 0 0 10 0 0 0 18 0 1 0 218493672 2019328 340 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134688808 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 493 340 81 214 0 275 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1972

[startup+0.514734 s]
/proc/loadavg: 1.00 1.00 1.00 3/77 12129
/proc/meminfo: memFree=757736/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=3160 CPUtime=0.5
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 655 0 0 0 50 0 0 0 22 0 1 0 218493672 3235840 638 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 790 638 81 214 0 572 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 3160

[startup+1.3348 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=754400/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=4480 CPUtime=1.32
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 993 0 0 0 132 0 0 0 25 0 1 0 218493672 4587520 976 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 1120 976 81 214 0 902 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 4480

[startup+2.97094 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=752992/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=6064 CPUtime=2.96
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 1376 0 0 0 296 0 0 0 25 0 1 0 218493672 6209536 1359 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 1516 1359 81 214 0 1298 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 6064

[startup+6.2472 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=751264/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=7384 CPUtime=6.24
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 1695 0 0 0 623 1 0 0 25 0 1 0 218493672 7561216 1678 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 1846 1678 81 214 0 1628 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 7384

[startup+12.7067 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=749856/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=8572 CPUtime=12.7
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 1997 0 0 0 1269 1 0 0 25 0 1 0 218493672 8777728 1980 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517715 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 2143 1980 81 214 0 1925 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 8572

[startup+25.5158 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=748640/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=9892 CPUtime=25.5
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 2321 0 0 0 2549 1 0 0 25 0 1 0 218493672 10129408 2304 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 2473 2304 81 214 0 2255 0
Current children cumulated CPU time (s) 25.5
Current children cumulated vsize (KiB) 9892

[startup+51.1279 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=746912/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=11476 CPUtime=51.1
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 2740 0 0 0 5109 1 0 0 25 0 1 0 218493672 11751424 2723 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 2869 2723 81 214 0 2651 0
Current children cumulated CPU time (s) 51.1
Current children cumulated vsize (KiB) 11476

[startup+102.349 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=744416/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=13852 CPUtime=102.31
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 3336 0 0 0 10229 2 0 0 25 0 1 0 218493672 14184448 3319 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517724 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 3463 3319 81 214 0 3245 0
Current children cumulated CPU time (s) 102.31
Current children cumulated vsize (KiB) 13852

[startup+162.383 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=742240/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=15964 CPUtime=162.34
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 3870 0 0 0 16231 3 0 0 25 0 1 0 218493672 16347136 3853 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 3991 3853 81 214 0 3773 0
Current children cumulated CPU time (s) 162.34
Current children cumulated vsize (KiB) 15964

[startup+222.413 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=740448/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=17680 CPUtime=222.35
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 4299 0 0 0 22232 3 0 0 25 0 1 0 218493672 18104320 4282 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517738 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 4420 4282 81 214 0 4202 0
Current children cumulated CPU time (s) 222.35
Current children cumulated vsize (KiB) 17680

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

[startup+222.923 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=740448/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=17812 CPUtime=222.86
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 4302 0 0 0 22283 3 0 0 25 0 1 0 218493672 18239488 4285 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134517190 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 4453 4285 81 214 0 4235 0
Current children cumulated CPU time (s) 222.86
Current children cumulated vsize (KiB) 17812

[startup+236.034 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=706016/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=52052 CPUtime=235.97
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 12893 0 0 0 23590 7 0 0 25 0 1 0 218493672 53301248 12876 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523603 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 13013 12876 91 214 0 12795 0
Current children cumulated CPU time (s) 235.97
Current children cumulated vsize (KiB) 52052

[startup+242.591 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=706016/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=52052 CPUtime=242.53
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 12893 0 0 0 24246 7 0 0 25 0 1 0 218493672 53301248 12876 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523603 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 13013 12876 91 214 0 12795 0
Current children cumulated CPU time (s) 242.53
Current children cumulated vsize (KiB) 52052

[startup+244.227 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=706016/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=52052 CPUtime=244.16
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 12893 0 0 0 24409 7 0 0 25 0 1 0 218493672 53301248 12876 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134523168 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 13013 12876 91 214 0 12795 0
Current children cumulated CPU time (s) 244.16
Current children cumulated vsize (KiB) 52052

[startup+245.047 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=706016/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=52052 CPUtime=244.98
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 12893 0 0 0 24491 7 0 0 25 0 1 0 218493672 53301248 12876 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134548611 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 13013 12876 91 214 0 12795 0
Current children cumulated CPU time (s) 244.98
Current children cumulated vsize (KiB) 52052

[startup+245.455 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=706016/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=52052 CPUtime=245.39
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4194304 12893 0 0 0 24532 7 0 0 25 0 1 0 218493672 53301248 12876 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 134548749 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 13013 12876 91 214 0 12795 0
Current children cumulated CPU time (s) 245.39
Current children cumulated vsize (KiB) 52052

[startup+245.868 s]
/proc/loadavg: 1.00 1.00 1.00 2/78 12130
/proc/meminfo: memFree=706016/2055920 swapFree=4192812/4192956
[pid=12129] ppid=12127 vsize=52052 CPUtime=245.8
/proc/12129/stat : 12129 (mmisat) R 12127 12129 12032 0 -1 4195840 12900 0 0 0 24560 20 0 0 25 0 1 0 218493672 53301248 12880 18446744073709551615 134512640 135391789 4294956624 18446744073709551615 135098577 0 0 4096 0 0 0 0 17 1 0 0
/proc/12129/statm: 13013 12880 95 214 0 12795 0
Current children cumulated CPU time (s) 245.8
Current children cumulated vsize (KiB) 52052

Child ended because it received signal 6 (SIGABRT)
Real time (s): 245.945
CPU time (s): 245.886
CPU user time (s): 245.607
CPU system time (s): 0.278957
CPU usage (%): 99.976
Max. virtual memory (cumulated for all children) (KiB): 52052

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 245.607
system time used= 0.278957
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 12909
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= 5000

runsolver used 0.305953 second user time and 0.569913 second system time

The end

Launcher Data (download as text)

Begin job on node3 on Tue Feb 20 15:29:48 UTC 2007

IDJOB= 301681
IDBENCH= 20065
IDSOLVER= 108
FILE ID= node3/301681-1171985388

PBS_JOBID= 3849067

Free space on /tmp= 66550 MiB

SOLVER NAME= Mmisat 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/LargeSize/5SAT/v1000/unif-k5-r20-v1000-c20000-S683236487-13.cnf
COMMAND LINE= /tmp/evaluation/301681-1171985388/mmisat /tmp/evaluation/301681-1171985388/instance-301681-1171985388.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node3/watcher-301681-1171985388 -o ROOT/results/node3/solver-301681-1171985388 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/301681-1171985388/mmisat /tmp/evaluation/301681-1171985388/instance-301681-1171985388.cnf            

META MD5SUM SOLVER= f0471644c1818c6834832b41e70bf7e6
MD5SUM BENCH=  4356efd851b4254135ae4efd766e660e

RANDOM SEED= 630668866

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node3.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		: 3000.241
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		: 3000.241
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:        758208 kB
Buffers:         62528 kB
Cached:        1101088 kB
SwapCached:          0 kB
Active:         556716 kB
Inactive:       661400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        758208 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            1576 kB
Writeback:           0 kB
Mapped:          73376 kB
Slab:            65324 kB
Committed_AS:  1061320 kB
PageTables:       1656 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= 66499 MiB

End job on node3 on Tue Feb 20 15:33:54 UTC 2007