Trace number 331227

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
CMUSAT 2007-02-08? (MO) 32.2291 32.2402

General information on the benchmark

Nameindustrial/vliw_sat_4.0/
9vliw_m_9stages_iq3_C1_bug5.cnf
MD5SUMc77a56af24208a6401c763e11a38de01
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark32.2141
Satisfiable
(Un)Satisfiability was proved
Number of variables520770
Number of clauses13380350
Sum of the clauses size39210884
Maximum clause length6689
Minimum clause length1
Number of clauses of size 11
Number of clauses of size 28710587
Number of clauses of size 34215482
Number of clauses of size 425225
Number of clauses of size 515593
Number of clauses of size over 5413462

Solver Data (download as text)

0.00/0.00	c Pre-processing provided 0 assignments
0.00/0.00	c |  Number of variables:  520770                                               |
9.39/9.42	c |  Number of clauses:    13380350                                             |

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/node44/watcher-331227-1173182580 -o ROOT/results/node44/solver-331227-1173182580 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/331227-1173182580/cmusat /tmp/evaluation/331227-1173182580/instance-331227-1173182580.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: 1.65 1.14 1.05 3/64 22901
/proc/meminfo: memFree=1547640/2055920 swapFree=4183376/4192956
[pid=22901] ppid=22899 vsize=2320 CPUtime=0
/proc/22901/stat : 22901 (cmusat) R 22899 22901 21579 0 -1 4194304 431 0 0 0 0 0 0 0 18 0 1 0 338215966 2375680 414 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/22901/statm: 580 415 97 243 0 334 0

[startup+0.0313659 s]
/proc/loadavg: 1.65 1.14 1.05 3/64 22901
/proc/meminfo: memFree=1547640/2055920 swapFree=4183376/4192956
[pid=22901] ppid=22899 vsize=4440 CPUtime=0.02
/proc/22901/stat : 22901 (cmusat) R 22899 22901 21579 0 -1 4194304 938 0 0 0 2 0 0 0 18 0 1 0 338215966 4546560 921 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/22901/statm: 1110 922 97 243 0 864 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 4440

[startup+0.101377 s]
/proc/loadavg: 1.65 1.14 1.05 3/64 22901
/proc/meminfo: memFree=1547640/2055920 swapFree=4183376/4192956
[pid=22901] ppid=22899 vsize=9736 CPUtime=0.09
/proc/22901/stat : 22901 (cmusat) R 22899 22901 21579 0 -1 4194304 2151 0 0 0 8 1 0 0 18 0 1 0 338215966 9969664 2134 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/22901/statm: 2434 2135 97 243 0 2188 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 9736

[startup+0.301415 s]
/proc/loadavg: 1.65 1.14 1.05 3/64 22901
/proc/meminfo: memFree=1547640/2055920 swapFree=4183376/4192956
[pid=22901] ppid=22899 vsize=22860 CPUtime=0.29
/proc/22901/stat : 22901 (cmusat) R 22899 22901 21579 0 -1 4194304 5415 0 0 0 26 3 0 0 19 0 1 0 338215966 23408640 5398 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 134551386 0 0 4096 35 0 0 0 17 1 0 0
/proc/22901/statm: 5715 5399 98 243 0 5469 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 22860

[startup+0.701488 s]
/proc/loadavg: 1.65 1.14 1.05 3/64 22901
/proc/meminfo: memFree=1547640/2055920 swapFree=4183376/4192956
[pid=22901] ppid=22899 vsize=49064 CPUtime=0.69
/proc/22901/stat : 22901 (cmusat) R 22899 22901 21579 0 -1 4194304 11912 0 0 0 62 7 0 0 22 0 1 0 338215966 50241536 11895 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/22901/statm: 12266 11895 97 243 0 12020 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 49064

[startup+1.50163 s]
/proc/loadavg: 1.65 1.14 1.05 2/65 22902
/proc/meminfo: memFree=1481072/2055920 swapFree=4183376/4192956
[pid=22901] ppid=22899 vsize=101336 CPUtime=1.49
/proc/22901/stat : 22901 (cmusat) R 22899 22901 21579 0 -1 4194304 24455 0 0 0 134 15 0 0 25 0 1 0 338215966 103768064 24438 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/22901/statm: 25334 24439 97 243 0 25088 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 101336

[startup+3.10193 s]
/proc/loadavg: 1.65 1.14 1.05 2/65 22902
/proc/meminfo: memFree=1412272/2055920 swapFree=4183376/4192956
[pid=22901] ppid=22899 vsize=203380 CPUtime=3.09
/proc/22901/stat : 22901 (cmusat) R 22899 22901 21579 0 -1 4194304 48762 0 0 0 278 31 0 0 25 0 1 0 338215966 208261120 48745 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/22901/statm: 50845 48746 97 243 0 50599 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 203380

[startup+6.30151 s]
/proc/loadavg: 1.68 1.16 1.05 2/65 22902
/proc/meminfo: memFree=1216056/2055920 swapFree=4183376/4192956
[pid=22901] ppid=22899 vsize=408888 CPUtime=6.29
/proc/22901/stat : 22901 (cmusat) R 22899 22901 21579 0 -1 4194304 96679 0 0 0 567 62 0 0 25 0 1 0 338215966 418701312 96662 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 135092575 0 0 4096 35 0 0 0 17 1 0 0
/proc/22901/statm: 102222 96662 97 243 0 101976 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 408888

[startup+12.7017 s]
/proc/loadavg: 1.62 1.15 1.05 2/65 22902
/proc/meminfo: memFree=792888/2055920 swapFree=4183376/4192956
[pid=22901] ppid=22899 vsize=769612 CPUtime=12.69
/proc/22901/stat : 22901 (cmusat) R 22899 22901 21579 0 -1 4194304 191190 0 0 0 1161 108 0 0 25 0 1 0 338215966 788082688 187088 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 135087801 0 0 4096 35 0 0 0 17 1 0 0
/proc/22901/statm: 192403 187088 108 243 0 192157 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 769612

[startup+25.502 s]
/proc/loadavg: 1.48 1.14 1.05 2/65 22902
/proc/meminfo: memFree=683384/2055920 swapFree=4183376/4192956
[pid=22901] ppid=22899 vsize=869148 CPUtime=25.49
/proc/22901/stat : 22901 (cmusat) R 22899 22901 21579 0 -1 4194304 246937 0 0 0 2417 132 0 0 25 0 1 0 338215966 890007552 217045 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 134553441 0 0 4096 35 0 0 0 17 1 0 0
/proc/22901/statm: 217287 217045 111 243 0 217041 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 869148



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+32.0012 s]
/proc/loadavg: 1.44 1.14 1.05 2/65 22902
/proc/meminfo: memFree=48568/2055920 swapFree=4183376/4192956
[pid=22901] ppid=22899 vsize=1887720 CPUtime=31.99
/proc/22901/stat : 22901 (cmusat) R 22899 22901 21579 0 -1 4194304 406181 0 0 0 3008 191 0 0 25 0 1 0 338215966 1933025280 375077 18446744073709551615 134512640 135508737 4294956720 18446744073709551615 134560494 0 0 4096 35 0 0 0 17 1 0 0
/proc/22901/statm: 471930 375083 113 243 0 471684 0
Current children cumulated CPU time (s) 31.99
Current children cumulated vsize (KiB) 1887720

Sending SIGTERM to process tree (bottom up)
Sleeping 2 seconds

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

[startup+32.2012 s]
/proc/loadavg: 1.44 1.14 1.05 2/65 22902
/proc/meminfo: memFree=48568/2055920 swapFree=4183376/4192956
[pid=22901] ppid=22899 vsize=0 CPUtime=32.18
/proc/22901/stat : 22901 (cmusat) R 22899 22901 21579 0 -1 4195332 406214 0 0 0 3008 210 0 0 25 0 1 0 338215966 0 0 18446744073709551615 0 0 0 0 0 0 0 4096 35 0 0 0 17 1 0 0
/proc/22901/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 32.18
Current children cumulated vsize (KiB) 0

Child ended because it received signal 15 (SIGTERM)
Real time (s): 32.2402
CPU time (s): 32.2291
CPU user time (s): 30.0824
CPU system time (s): 2.14667
CPU usage (%): 99.9655
Max. virtual memory (cumulated for all children) (KiB): 1887720

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 30.0824
system time used= 2.14667
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 406214
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= 66

runsolver used 0.025996 second user time and 0.077988 second system time

The end

Launcher Data (download as text)

Begin job on node44 on Tue Mar  6 12:03:18 UTC 2007

IDJOB= 331227
IDBENCH= 20582
IDSOLVER= 121
FILE ID= node44/331227-1173182580

PBS_JOBID= 4015260

Free space on /tmp= 66225 MiB

SOLVER NAME= CMUSAT 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/vliw_sat_4.0/9vliw_m_9stages_iq3_C1_bug5.cnf
COMMAND LINE= /tmp/evaluation/331227-1173182580/cmusat /tmp/evaluation/331227-1173182580/instance-331227-1173182580.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-331227-1173182580 -o ROOT/results/node44/solver-331227-1173182580 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/331227-1173182580/cmusat /tmp/evaluation/331227-1173182580/instance-331227-1173182580.cnf            

META MD5SUM SOLVER= af990fb12f8926fdd756b397adb3b5cf
MD5SUM BENCH=  c77a56af24208a6401c763e11a38de01

RANDOM SEED= 749089789

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node44.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		: 3000.261
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		: 3000.261
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:       1548048 kB
Buffers:          5720 kB
Cached:         397328 kB
SwapCached:       3728 kB
Active:         432460 kB
Inactive:        17920 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1548048 kB
SwapTotal:     4192956 kB
SwapFree:      4183376 kB
Dirty:          214596 kB
Writeback:           0 kB
Mapped:          52940 kB
Slab:            43420 kB
Committed_AS:   749096 kB
PageTables:       1504 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= 66225 MiB

End job on node44 on Tue Mar  6 12:03:52 UTC 2007