Trace number 247396

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) 16.9994 17.036

General information on the benchmark

Namerandom/rand-8-20-5/
rand-8-20-5-18-800-13_ext.xml
MD5SUMa5445ab70379ee1065ebabe08628ea31
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 benchmark54.6227
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...
0.62	c preparing clauses for relation R0
1.46	c preparing clauses for relation R1
2.29	c preparing clauses for relation R2
3.12	c preparing clauses for relation R3
3.96	c preparing clauses for relation R4
4.79	c preparing clauses for relation R5
5.62	c preparing clauses for relation R6
6.46	c preparing clauses for relation R7
7.28	c preparing clauses for relation R8
8.10	c preparing clauses for relation R9
8.94	c preparing clauses for relation R10
9.76	c preparing clauses for relation R11
10.58	c preparing clauses for relation R12
11.41	c preparing clauses for relation R13
12.21	c preparing clauses for relation R14
13.04	c preparing clauses for relation R15
13.87	c preparing clauses for relation R16
14.66	c preparing clauses for relation R17
14.89	c instanciating clauses for relation R0 (supports) and variables V0 V1 V2 V5 V7 V11 V17 V19 
15.49	c instanciating clauses for relation R1 (supports) and variables V0 V2 V3 V4 V5 V11 V12 V16 
16.09	c instanciating clauses for relation R2 (supports) and variables V0 V2 V3 V4 V9 V12 V17 V18 
16.68	c instanciating clauses for relation R3 (supports) and variables V0 V2 V3 V8 V9 V14 V15 V18

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/node22/watcher-247396-1168093695 -o ROOT/results/node22/solver-247396-1168093695 -C 1800 -M 900 /tmp/evaluation/247396-1168093695/CSPtoSAT+minisat /tmp/evaluation/247396-1168093695/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: 0.08 1.04 1.55 4/81 12167
/proc/meminfo: memFree=1555608/2055920 swapFree=4157532/4192956
[pid=12166] ppid=12164 vsize=6696 CPUtime=0
/proc/12166/stat : 12166 (CSPtoSAT+minisa) R 12164 12166 11714 0 -1 4194304 403 0 0 0 0 0 0 0 18 0 1 0 157766264 6856704 383 18446744073709551615 134512640 134728504 4294956720 18446744073709551615 4647800 0 0 4096 0 0 0 0 17 1 0 0
/proc/12166/statm: 1674 383 358 52 0 30 0

[startup+0.103871 s]
/proc/loadavg: 0.08 1.04 1.55 4/81 12167
/proc/meminfo: memFree=1555608/2055920 swapFree=4157532/4192956
[pid=12166] ppid=12164 vsize=10008 CPUtime=0.09
/proc/12166/stat : 12166 (CSPtoSAT+minisa) R 12164 12166 11714 0 -1 4194304 2503 0 0 0 8 1 0 0 18 0 1 0 157766264 10248192 1536 18446744073709551615 134512640 134728504 4294956720 18446744073709551615 134580374 0 0 4096 0 0 0 0 17 1 0 0
/proc/12166/statm: 2502 1536 698 52 0 870 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10008

[startup+0.511932 s]
/proc/loadavg: 0.08 1.04 1.55 4/81 12167
/proc/meminfo: memFree=1555608/2055920 swapFree=4157532/4192956
[pid=12166] ppid=12164 vsize=12300 CPUtime=0.5
/proc/12166/stat : 12166 (CSPtoSAT+minisa) R 12164 12166 11714 0 -1 4194304 3265 0 0 0 49 1 0 0 22 0 1 0 157766264 12595200 2152 18446744073709551615 134512640 134728504 4294956720 18446744073709551615 5745250 0 0 4096 0 0 0 0 17 1 0 0
/proc/12166/statm: 3075 2153 698 52 0 1443 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 12300

[startup+1.33206 s]
/proc/loadavg: 0.08 1.04 1.55 2/81 12167
/proc/meminfo: memFree=1520280/2055920 swapFree=4157532/4192956
[pid=12166] ppid=12164 vsize=50044 CPUtime=1.32
/proc/12166/stat : 12166 (CSPtoSAT+minisa) R 12164 12166 11714 0 -1 4194304 18815 0 0 0 125 7 0 0 25 0 1 0 157766264 51245056 9568 18446744073709551615 134512640 134728504 4294956720 18446744073709551615 134580374 0 0 4096 0 0 0 0 17 1 0 0
/proc/12166/statm: 12511 9568 702 52 0 10879 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 50044

[startup+2.97231 s]
/proc/loadavg: 0.08 1.04 1.55 2/81 12167
/proc/meminfo: memFree=1488024/2055920 swapFree=4157532/4192956
[pid=12166] ppid=12164 vsize=124872 CPUtime=2.96
/proc/12166/stat : 12166 (CSPtoSAT+minisa) R 12164 12166 11714 0 -1 4194304 49927 0 0 0 275 21 0 0 25 0 1 0 157766264 127868928 24258 18446744073709551615 134512640 134728504 4294956720 18446744073709551615 4159312833 0 0 4096 0 0 0 0 17 1 0 0
/proc/12166/statm: 31218 24258 702 52 0 29586 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 124872

[startup+6.24881 s]
/proc/loadavg: 0.16 1.04 1.55 2/81 12167
/proc/meminfo: memFree=1369048/2055920 swapFree=4157532/4192956
[pid=12166] ppid=12164 vsize=274396 CPUtime=6.23
/proc/12166/stat : 12166 (CSPtoSAT+minisa) R 12164 12166 11714 0 -1 4194304 112148 0 0 0 578 45 0 0 25 0 1 0 157766264 280981504 53635 18446744073709551615 134512640 134728504 4294956720 18446744073709551615 134562681 0 0 4096 0 0 0 0 17 1 0 0
/proc/12166/statm: 68599 53635 702 52 0 66967 0
Current children cumulated CPU time (s) 6.23
Current children cumulated vsize (KiB) 274396

[startup+12.7068 s]
/proc/loadavg: 0.22 1.03 1.55 2/81 12188
/proc/meminfo: memFree=1115160/2055920 swapFree=4157532/4192956
[pid=12166] ppid=12164 vsize=573312 CPUtime=12.68
/proc/12166/stat : 12166 (CSPtoSAT+minisa) R 12164 12166 11714 0 -1 4194304 236367 0 0 0 1174 94 0 0 25 0 1 0 157766264 587071488 112166 18446744073709551615 134512640 134728504 4294956720 18446744073709551615 134580374 0 0 4096 0 0 0 0 17 1 0 0
/proc/12166/statm: 143328 112166 702 52 0 141696 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 573312



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+16.9035 s]
/proc/loadavg: 0.29 1.03 1.54 2/81 12201
/proc/meminfo: memFree=794000/2055920 swapFree=4157532/4192956
[pid=12166] ppid=12164 vsize=924364 CPUtime=16.87
/proc/12166/stat : 12166 (CSPtoSAT+minisa) R 12164 12166 11714 0 -1 4194304 339255 0 0 0 1554 133 0 0 25 0 1 0 157766264 946548736 190267 18446744073709551615 134512640 134728504 4294956720 18446744073709551615 5113467 0 0 4096 0 0 0 0 17 1 0 0
/proc/12166/statm: 231091 190268 705 52 0 229459 0
Current children cumulated CPU time (s) 16.87
Current children cumulated vsize (KiB) 924364

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 17.036
CPU time (s): 16.9994
CPU user time (s): 15.5456
CPU system time (s): 1.45378
CPU usage (%): 99.7854
Max. virtual memory (cumulated for all children) (KiB): 924364

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.5456
system time used= 1.45378
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 339261
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= 384

runsolver used 0.018997 s user time and 0.053991 s system time

The end

Launcher Data (download as text)

Begin job on node22 on Sat Jan  6 14:28:32 UTC 2007


IDJOB= 247396
IDBENCH= 11121
FILE ID= node22/247396-1168093695

PBS_JOBID= 3476559

Free space on /tmp= 66528 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-8-20-5/rand-8-20-5-18-800-13_ext.xml
COMMAND LINE= /tmp/evaluation/247396-1168093695/CSPtoSAT+minisat /tmp/evaluation/247396-1168093695/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node22/watcher-247396-1168093695 -o ROOT/results/node22/solver-247396-1168093695 -C 1800 -M 900  /tmp/evaluation/247396-1168093695/CSPtoSAT+minisat /tmp/evaluation/247396-1168093695/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  a5445ab70379ee1065ebabe08628ea31

RANDOM SEED= 649477846

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		: 3000.279
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		: 3000.279
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:       1555768 kB
Buffers:         44332 kB
Cached:         343220 kB
SwapCached:      13648 kB
Active:         122880 kB
Inactive:       308604 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1555768 kB
SwapTotal:     4192956 kB
SwapFree:      4157532 kB
Dirty:           23596 kB
Writeback:           0 kB
Mapped:          59140 kB
Slab:            53796 kB
Committed_AS:  2670724 kB
PageTables:       2116 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= 66526 MiB



End job on node22 on Sat Jan  6 14:28:58 UTC 2007