Trace number 247474

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
CSPtoSAT+minisat 0.3? (MO) 18.9971 19.0107

General information on the benchmark

Namerandom/rand-8-20-5/
rand-8-20-5-18-800-9_ext.xml
MD5SUM2edb97a8e449f03344d9a881313e99a5
Bench CategoryN-ARY-EXT (n-ary constraints in extension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark62.1805
SatisfiableYES
(Un)Satisfiability was proved
Number of variables20
Number of constraints18
Maximum constraint arity8
Maximum domain size5
Number of constraints which are defined in extension18
Number of constraints which are defined in intension0
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c This is CSPtoSAT+minisat version 0.3
0.01	c (c) 2006 roussel@cril.univ-artois.fr
0.01	
0.01	c This solver internally uses a modified version of MiniSat2 version 061112
0.01	c MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
0.01	
0.01	c parsing...
0.64	c preparing clauses for relation R0
1.56	c preparing clauses for relation R1
2.48	c preparing clauses for relation R2
3.41	c preparing clauses for relation R3
4.33	c preparing clauses for relation R4
5.26	c preparing clauses for relation R5
6.17	c preparing clauses for relation R6
7.10	c preparing clauses for relation R7
8.02	c preparing clauses for relation R8
8.95	c preparing clauses for relation R9
9.87	c preparing clauses for relation R10
10.81	c preparing clauses for relation R11
11.74	c preparing clauses for relation R12
12.66	c preparing clauses for relation R13
13.59	c preparing clauses for relation R14
14.52	c preparing clauses for relation R15
15.46	c preparing clauses for relation R16
16.39	c preparing clauses for relation R17
16.70	c instanciating clauses for relation R0 (supports) and variables V0 V2 V3 V6 V10 V12 V16 V18 
17.33	c instanciating clauses for relation R1 (supports) and variables V0 V3 V4 V7 V9 V13 V14 V16 
17.96	c instanciating clauses for relation R2 (supports) and variables V0 V3 V6 V9 V12 V13 V17 V18 
18.58	c instanciating clauses for relation R3 (supports) and variables V0 V3 V8 V9 V10 V12 V18 V19

Verifier Data (download as text)

ERROR: Unexpected answer ! (SAT/UNSAT expected)
Got answer:

Watcher Data (download as text)

runsolver version 3.1.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node15/watcher-247474-1168093712 -o ROOT/results/node15/solver-247474-1168093712 -C 1800 -M 900 /tmp/evaluation/247474-1168093712/CSPtoSAT+minisat /tmp/evaluation/247474-1168093712/unknown.xml 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB

/proc/loadavg: 0.97 1.20 1.65 5/86 20884
/proc/meminfo: memFree=1239264/2055920 swapFree=4174172/4192956
[pid=20883] ppid=20881 vsize=6696 CPUtime=0
/proc/20883/stat : 20883 (CSPtoSAT+minisa) R 20881 20883 20478 0 -1 4194304 423 0 0 0 0 0 0 0 18 0 1 0 157767819 6856704 402 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 7482244 0 0 4096 0 0 0 0 17 1 0 0
/proc/20883/statm: 1674 402 364 52 0 30 0

[startup+0.107339 s]
/proc/loadavg: 0.97 1.20 1.65 5/86 20884
/proc/meminfo: memFree=1239264/2055920 swapFree=4174172/4192956
[pid=20883] ppid=20881 vsize=10008 CPUtime=0.1
/proc/20883/stat : 20883 (CSPtoSAT+minisa) R 20881 20883 20478 0 -1 4194304 2502 0 0 0 9 1 0 0 18 0 1 0 157767819 10248192 1535 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 7945940 0 0 4096 0 0 0 0 17 1 0 0
/proc/20883/statm: 2502 1535 698 52 0 870 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 10008

[startup+0.515404 s]
/proc/loadavg: 0.97 1.20 1.65 5/86 20884
/proc/meminfo: memFree=1239264/2055920 swapFree=4174172/4192956
[pid=20883] ppid=20881 vsize=12300 CPUtime=0.5
/proc/20883/stat : 20883 (CSPtoSAT+minisa) R 20881 20883 20478 0 -1 4194304 3262 0 0 0 49 1 0 0 22 0 1 0 157767819 12595200 2149 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 7944065 0 0 4096 0 0 0 0 17 1 0 0
/proc/20883/statm: 3075 2149 698 52 0 1443 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 12300

[startup+1.33839 s]
/proc/loadavg: 1.05 1.21 1.65 3/86 20884
/proc/meminfo: memFree=1205280/2055920 swapFree=4174172/4192956
[pid=20883] ppid=20881 vsize=50044 CPUtime=1.33
/proc/20883/stat : 20883 (CSPtoSAT+minisa) R 20881 20883 20478 0 -1 4194304 18785 0 0 0 121 12 0 0 25 0 1 0 157767819 51245056 9538 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 4156395248 0 0 4096 0 0 0 0 17 1 0 0
/proc/20883/statm: 12511 9538 702 52 0 10879 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 50044

[startup+2.97568 s]
/proc/loadavg: 1.05 1.21 1.65 3/86 20884
/proc/meminfo: memFree=1174368/2055920 swapFree=4174172/4192956
[pid=20883] ppid=20881 vsize=123176 CPUtime=2.96
/proc/20883/stat : 20883 (CSPtoSAT+minisa) R 20881 20883 20478 0 -1 4194304 49463 0 0 0 268 28 0 0 25 0 1 0 157767819 126132224 23794 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 4158495846 0 0 4096 0 0 0 0 17 1 0 0
/proc/20883/statm: 30794 23794 702 52 0 29162 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 123176

[startup+6.26224 s]
/proc/loadavg: 1.05 1.21 1.65 3/86 20884
/proc/meminfo: memFree=1058144/2055920 swapFree=4174172/4192956
[pid=20883] ppid=20881 vsize=256316 CPUtime=6.24
/proc/20883/stat : 20883 (CSPtoSAT+minisa) R 20881 20883 20478 0 -1 4194304 103596 0 0 0 566 58 0 0 25 0 1 0 157767819 262467584 49180 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134587523 0 0 4096 0 0 0 0 17 1 0 0
/proc/20883/statm: 64079 49182 702 52 0 62447 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 256316

[startup+12.7254 s]
/proc/loadavg: 1.20 1.24 1.65 3/86 20884
/proc/meminfo: memFree=850912/2055920 swapFree=4174172/4192956
[pid=20883] ppid=20881 vsize=525948 CPUtime=12.7
/proc/20883/stat : 20883 (CSPtoSAT+minisa) R 20881 20883 20478 0 -1 4194304 211004 0 0 0 1153 117 0 0 25 0 1 0 157767819 538570752 101163 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 7978579 0 0 4096 0 0 0 0 17 1 0 0
/proc/20883/statm: 131487 101173 702 52 0 129855 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 525948



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+18.8844 s]
/proc/loadavg: 1.26 1.25 1.65 3/86 20884
/proc/meminfo: memFree=472416/2055920 swapFree=4174172/4192956
[pid=20883] ppid=20881 vsize=931040 CPUtime=18.87
/proc/20883/stat : 20883 (CSPtoSAT+minisa) R 20881 20883 20478 0 -1 4194304 340985 0 0 0 1699 188 0 0 25 0 1 0 157767819 953384960 191923 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 7951309 0 0 4096 0 0 0 0 17 1 0 0
/proc/20883/statm: 232760 191928 705 52 0 231128 0
Current children cumulated CPU time (s) 18.87
Current children cumulated vsize (KiB) 931040

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 19.0107
CPU time (s): 18.9971
CPU user time (s): 16.9904
CPU system time (s): 2.00669
CPU usage (%): 99.9286
Max. virtual memory (cumulated for all children) (KiB): 931040

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.9904
system time used= 2.00669
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 340993
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= 14
involuntary context switches= 474

runsolver used 0.023996 s user time and 0.056991 s system time

The end

Launcher Data (download as text)

Begin job on node15 on Sat Jan  6 14:28:47 UTC 2007


IDJOB= 247474
IDBENCH= 11129
FILE ID= node15/247474-1168093712

PBS_JOBID= 3476406

Free space on /tmp= 66198 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-8-20-5/rand-8-20-5-18-800-9_ext.xml
COMMAND LINE= /tmp/evaluation/247474-1168093712/CSPtoSAT+minisat /tmp/evaluation/247474-1168093712/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node15/watcher-247474-1168093712 -o ROOT/results/node15/solver-247474-1168093712 -C 1800 -M 900  /tmp/evaluation/247474-1168093712/CSPtoSAT+minisat /tmp/evaluation/247474-1168093712/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  2edb97a8e449f03344d9a881313e99a5

RANDOM SEED= 953234821

TIME LIMIT= 1800 seconds

MEMORY LIMIT= 900 MiB


/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		: 3000.276
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		: 3000.276
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:       1240008 kB
Buffers:          8768 kB
Cached:         224464 kB
SwapCached:       6400 kB
Active:         652792 kB
Inactive:       110640 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1240008 kB
SwapTotal:     4192956 kB
SwapFree:      4174172 kB
Dirty:           23532 kB
Writeback:           0 kB
Mapped:         542976 kB
Slab:            36108 kB
Committed_AS:  4796128 kB
PageTables:       3572 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= 66198 MiB



End job on node15 on Sat Jan  6 14:29:11 UTC 2007