Trace number 313226

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
minimarch 2007-02-08Wrong UNSAT 2.26266 2.26465

General information on the benchmark

Nameindustrial/anbulagan/
medium-sat/dated-10-13-s.cnf
MD5SUM120a205e1420676f8007fba80a5a88e7
Bench CategoryINDUST (industrial instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark14.3508
Satisfiable
(Un)Satisfiability was proved
Number of variables181082
Number of clauses824258
Sum of the clauses size1887794
Maximum clause length10
Minimum clause length1
Number of clauses of size 115233
Number of clauses of size 2657174
Number of clauses of size 3117631
Number of clauses of size 43800
Number of clauses of size 515200
Number of clauses of size over 515220

Solver Data (download as text)

0.00/0.00	This is MiniMarch, a modified version of MiniSat 2.0 beta
0.00/0.00	WARNING: for repeatability, setting FPU to use double precision
0.00/0.00	============================[ Problem Statistics ]=============================
0.00/0.00	|                                                                             |
0.00/0.00	|  Number of variables:  181082                                               |
0.00/0.00	|  Number of clauses:    824258                                               |
2.20/2.25	|  Parsing time:         2.15         s                                       |
2.20/2.25	Solved by unit propagation
2.20/2.25	s UNSATISFIABLE

Verifier Data (download as text)

No possible verification on an UNSAT instance

Watcher Data (download as text)

runsolver version 3.2.2 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node26/watcher-313226-1176880074 -o ROOT/results/node26/solver-313226-1176880074 -C 1200 -W 2400 -M 1800 --output-limit 1,15 /tmp/evaluation/313226-1176880074/minimarch /tmp/evaluation/313226-1176880074/instance-313226-1176880074.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: 1.00 1.02 1.00 3/77 14779
/proc/meminfo: memFree=1616976/2055920 swapFree=4170240/4192956
[pid=14779] ppid=14777 vsize=2340 CPUtime=0
/proc/14779/stat : 14779 (minimarch) R 14777 14779 13789 0 -1 4194304 477 0 0 0 0 0 0 0 18 0 1 0 135924272 2396160 461 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134553752 0 0 4096 3 0 0 0 17 1 0 0
/proc/14779/statm: 585 462 51 132 0 450 0

[startup+0.079477 s]
/proc/loadavg: 1.00 1.02 1.00 3/77 14779
/proc/meminfo: memFree=1616976/2055920 swapFree=4170240/4192956
[pid=14779] ppid=14777 vsize=10008 CPUtime=0.07
/proc/14779/stat : 14779 (minimarch) R 14777 14779 13789 0 -1 4194304 2170 0 0 0 7 0 0 0 18 0 1 0 135924272 10248192 2154 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134526272 0 0 4096 3 0 0 0 17 1 0 0
/proc/14779/statm: 2502 2155 51 132 0 2367 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 10008

[startup+0.101479 s]
/proc/loadavg: 1.00 1.02 1.00 3/77 14779
/proc/meminfo: memFree=1616976/2055920 swapFree=4170240/4192956
[pid=14779] ppid=14777 vsize=12856 CPUtime=0.09
/proc/14779/stat : 14779 (minimarch) R 14777 14779 13789 0 -1 4194304 2925 0 0 0 9 0 0 0 18 0 1 0 135924272 13164544 2909 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134526272 0 0 4096 3 0 0 0 17 1 0 0
/proc/14779/statm: 3214 2910 51 132 0 3079 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 12856

[startup+0.301498 s]
/proc/loadavg: 1.00 1.02 1.00 3/77 14779
/proc/meminfo: memFree=1616976/2055920 swapFree=4170240/4192956
[pid=14779] ppid=14777 vsize=37960 CPUtime=0.29
/proc/14779/stat : 14779 (minimarch) R 14777 14779 13789 0 -1 4194304 8034 0 0 0 25 4 0 0 19 0 1 0 135924272 38871040 8018 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134848966 0 0 4096 3 0 0 0 17 1 0 0
/proc/14779/statm: 9523 8019 51 132 0 9388 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 37960

[startup+0.701534 s]
/proc/loadavg: 1.00 1.02 1.00 3/77 14779
/proc/meminfo: memFree=1616976/2055920 swapFree=4170240/4192956
[pid=14779] ppid=14777 vsize=56708 CPUtime=0.69
/proc/14779/stat : 14779 (minimarch) R 14777 14779 13789 0 -1 4194304 12557 0 0 0 62 7 0 0 23 0 1 0 135924272 58068992 12541 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134688823 0 0 4096 3 0 0 0 17 1 0 0
/proc/14779/statm: 14177 12542 51 132 0 14042 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 56708

[startup+1.50261 s]
/proc/loadavg: 1.00 1.02 1.00 2/78 14780
/proc/meminfo: memFree=1551496/2055920 swapFree=4170240/4192956
[pid=14779] ppid=14777 vsize=71456 CPUtime=1.49
/proc/14779/stat : 14779 (minimarch) R 14777 14779 13789 0 -1 4194304 16485 0 0 0 139 10 0 0 25 0 1 0 135924272 73170944 16469 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134523345 0 0 4096 3 0 0 0 17 1 0 0
/proc/14779/statm: 17864 16469 51 132 0 17729 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 71456

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

[startup+1.90165 s]
/proc/loadavg: 1.00 1.02 1.00 2/78 14780
/proc/meminfo: memFree=1551496/2055920 swapFree=4170240/4192956
[pid=14779] ppid=14777 vsize=71456 CPUtime=1.89
/proc/14779/stat : 14779 (minimarch) R 14777 14779 13789 0 -1 4194304 16485 0 0 0 179 10 0 0 25 0 1 0 135924272 73170944 16469 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134523351 0 0 4096 3 0 0 0 17 1 0 0
/proc/14779/statm: 17864 16469 51 132 0 17729 0
Current children cumulated CPU time (s) 1.89
Current children cumulated vsize (KiB) 71456

[startup+2.10167 s]
/proc/loadavg: 1.00 1.02 1.00 2/78 14780
/proc/meminfo: memFree=1550984/2055920 swapFree=4170240/4192956
[pid=14779] ppid=14777 vsize=71456 CPUtime=2.1
/proc/14779/stat : 14779 (minimarch) R 14777 14779 13789 0 -1 4194304 16485 0 0 0 200 10 0 0 25 0 1 0 135924272 73170944 16469 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134523074 0 0 4096 3 0 0 0 17 1 0 0
/proc/14779/statm: 17864 16469 51 132 0 17729 0
Current children cumulated CPU time (s) 2.1
Current children cumulated vsize (KiB) 71456

[startup+2.20568 s]
/proc/loadavg: 1.00 1.02 1.00 2/78 14780
/proc/meminfo: memFree=1550984/2055920 swapFree=4170240/4192956
[pid=14779] ppid=14777 vsize=71456 CPUtime=2.2
/proc/14779/stat : 14779 (minimarch) R 14777 14779 13789 0 -1 4194304 16485 0 0 0 210 10 0 0 25 0 1 0 135924272 73170944 16469 18446744073709551615 134512640 135054332 4294956672 18446744073709551615 134523421 0 0 4096 3 0 0 0 17 1 0 0
/proc/14779/statm: 17864 16469 51 132 0 17729 0
Current children cumulated CPU time (s) 2.2
Current children cumulated vsize (KiB) 71456

Child status: 20
Real time (s): 2.26465
CPU time (s): 2.26266
CPU user time (s): 2.14967
CPU system time (s): 0.112982
CPU usage (%): 99.9121
Max. virtual memory (cumulated for all children) (KiB): 71456

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.14967
system time used= 0.112982
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 16502
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= 47

runsolver used 0.005999 second user time and 0.008998 second system time

The end

Launcher Data (download as text)

Begin job on node26 on Wed Apr 18 07:07:55 UTC 2007

IDJOB= 313226
IDBENCH= 20361
IDSOLVER= 110
FILE ID= node26/313226-1176880074

PBS_JOBID= 4590310

Free space on /tmp= 66466 MiB

SOLVER NAME= minimarch 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/industrial/anbulagan/medium-sat/dated-10-13-s.cnf
COMMAND LINE= /tmp/evaluation/313226-1176880074/minimarch /tmp/evaluation/313226-1176880074/instance-313226-1176880074.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node26/watcher-313226-1176880074 -o ROOT/results/node26/solver-313226-1176880074 -C 1200 -W 2400 -M 1800 --output-limit 1,15  /tmp/evaluation/313226-1176880074/minimarch /tmp/evaluation/313226-1176880074/instance-313226-1176880074.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  120a205e1420676f8007fba80a5a88e7

RANDOM SEED= 196701981

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node26.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		: 3000.213
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		: 3000.213
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:       1617384 kB
Buffers:         36192 kB
Cached:         303636 kB
SwapCached:       3232 kB
Active:         191768 kB
Inactive:       191608 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1617384 kB
SwapTotal:     4192956 kB
SwapFree:      4170240 kB
Dirty:           16776 kB
Writeback:           0 kB
Mapped:          51016 kB
Slab:            40776 kB
Committed_AS:   987524 kB
PageTables:       1768 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= 66466 MiB

End job on node26 on Wed Apr 18 07:07:57 UTC 2007