Trace number 247435

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) 16.8424 16.8522

General information on the benchmark

Namerandom/rand-8-20-5/
rand-8-20-5-18-800-17_ext.xml
MD5SUM99aedbba3b4279edf60bda79b3a4f8a9
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 benchmark17.1624
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...
0.58	c preparing clauses for relation R0
1.43	c preparing clauses for relation R1
2.24	c preparing clauses for relation R2
3.05	c preparing clauses for relation R3
3.85	c preparing clauses for relation R4
4.64	c preparing clauses for relation R5
5.45	c preparing clauses for relation R6
6.24	c preparing clauses for relation R7
7.04	c preparing clauses for relation R8
7.83	c preparing clauses for relation R9
8.62	c preparing clauses for relation R10
9.44	c preparing clauses for relation R11
10.29	c preparing clauses for relation R12
11.20	c preparing clauses for relation R13
12.07	c preparing clauses for relation R14
12.92	c preparing clauses for relation R15
13.73	c preparing clauses for relation R16
14.53	c preparing clauses for relation R17
14.75	c instanciating clauses for relation R0 (supports) and variables V0 V2 V4 V7 V10 V11 V12 V16 
15.33	c instanciating clauses for relation R1 (supports) and variables V0 V2 V4 V12 V13 V14 V15 V16 
15.90	c instanciating clauses for relation R2 (supports) and variables V0 V2 V7 V8 V13 V14 V17 V19 
16.46	c instanciating clauses for relation R3 (supports) and variables V0 V3 V7 V8 V10 V15 V17 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/node35/watcher-247435-1168093710 -o ROOT/results/node35/solver-247435-1168093710 -C 1800 -M 900 /tmp/evaluation/247435-1168093710/CSPtoSAT+minisat /tmp/evaluation/247435-1168093710/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: 0.24 1.02 1.60 5/70 17285
/proc/meminfo: memFree=1858856/2055920 swapFree=4190292/4192956
[pid=17284] ppid=17281 vsize=6696 CPUtime=0
/proc/17284/stat : 17284 (CSPtoSAT+minisa) R 17281 17284 17186 0 -1 4194304 402 0 0 0 0 0 0 0 18 0 1 0 157766157 6856704 382 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 1466456 0 0 4096 0 0 0 0 17 0 0 0
/proc/17284/statm: 1674 382 357 52 0 30 0

[startup+0.103975 s]
/proc/loadavg: 0.24 1.02 1.60 5/70 17285
/proc/meminfo: memFree=1858856/2055920 swapFree=4190292/4192956
[pid=17284] ppid=17281 vsize=10008 CPUtime=0.09
/proc/17284/stat : 17284 (CSPtoSAT+minisa) R 17281 17284 17186 0 -1 4194304 2505 0 0 0 9 0 0 0 18 0 1 0 157766157 10248192 1538 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 4156395241 0 0 4096 0 0 0 0 17 0 0 0
/proc/17284/statm: 2502 1538 698 52 0 870 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10008

[startup+0.512016 s]
/proc/loadavg: 0.24 1.02 1.60 5/70 17285
/proc/meminfo: memFree=1858856/2055920 swapFree=4190292/4192956
[pid=17284] ppid=17281 vsize=15708 CPUtime=0.5
/proc/17284/stat : 17284 (CSPtoSAT+minisa) R 17281 17284 17186 0 -1 4194304 4104 0 0 0 49 1 0 0 22 0 1 0 157766157 16084992 2798 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 1599180 0 0 4096 0 0 0 0 17 0 0 0
/proc/17284/statm: 3927 2798 698 52 0 2295 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 15708

[startup+1.33311 s]
/proc/loadavg: 0.24 1.02 1.60 3/73 17288
/proc/meminfo: memFree=1789328/2055920 swapFree=4190292/4192956
[pid=17284] ppid=17281 vsize=50044 CPUtime=1.32
/proc/17284/stat : 17284 (CSPtoSAT+minisa) R 17281 17284 17186 0 -1 4194304 18790 0 0 0 125 7 0 0 25 0 1 0 157766157 51245056 9543 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 4156395243 0 0 4096 0 0 0 0 17 0 0 0
/proc/17284/statm: 12511 9543 702 52 0 10879 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 50044

[startup+2.97031 s]
/proc/loadavg: 0.24 1.02 1.60 3/73 17288
/proc/meminfo: memFree=1724944/2055920 swapFree=4190292/4192956
[pid=17284] ppid=17281 vsize=127752 CPUtime=2.96
/proc/17284/stat : 17284 (CSPtoSAT+minisa) R 17281 17284 17186 0 -1 4194304 50594 0 0 0 275 21 0 0 25 0 1 0 157766157 130818048 24732 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 1598968 0 0 4096 0 0 0 0 17 0 0 0
/proc/17284/statm: 31938 24732 702 52 0 30306 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 127752

[startup+6.24969 s]
/proc/loadavg: 0.38 1.04 1.60 3/73 17288
/proc/meminfo: memFree=1472144/2055920 swapFree=4190292/4192956
[pid=17284] ppid=17281 vsize=283944 CPUtime=6.24
/proc/17284/stat : 17284 (CSPtoSAT+minisa) R 17281 17284 17186 0 -1 4194304 113831 0 0 0 575 49 0 0 25 0 1 0 157766157 290758656 54869 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 1928787 0 0 4096 0 0 0 0 17 0 0 0
/proc/17284/statm: 70986 54875 702 52 0 69354 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 283944

[startup+12.7255 s]
/proc/loadavg: 0.51 1.05 1.60 3/73 17288
/proc/meminfo: memFree=1003728/2055920 swapFree=4190292/4192956
[pid=17284] ppid=17281 vsize=573312 CPUtime=12.7
/proc/17284/stat : 17284 (CSPtoSAT+minisa) R 17281 17284 17186 0 -1 4194304 236387 0 0 0 1164 106 0 0 25 0 1 0 157766157 587071488 112186 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 1599024 0 0 4096 0 0 0 0 17 0 0 0
/proc/17284/statm: 143328 112186 702 52 0 141696 0
Current children cumulated CPU time (s) 12.7
Current children cumulated vsize (KiB) 573312



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+16.7309 s]
/proc/loadavg: 0.63 1.07 1.60 3/73 17288
/proc/meminfo: memFree=464528/2055920 swapFree=4190292/4192956
[pid=17284] ppid=17281 vsize=930804 CPUtime=16.71
/proc/17284/stat : 17284 (CSPtoSAT+minisa) R 17281 17284 17186 0 -1 4194304 340890 0 0 0 1518 153 0 0 25 0 1 0 157766157 953143296 191828 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 1898107 0 0 4096 0 0 0 0 17 0 0 0
/proc/17284/statm: 232701 191829 705 52 0 231069 0
Current children cumulated CPU time (s) 16.71
Current children cumulated vsize (KiB) 930804

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 16.8522
CPU time (s): 16.8424
CPU user time (s): 15.1877
CPU system time (s): 1.65475
CPU usage (%): 99.9419
Max. virtual memory (cumulated for all children) (KiB): 930804

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 15.1877
system time used= 1.65475
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 340900
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= 103

runsolver used 0.023996 s user time and 0.058991 s system time

The end

Launcher Data (download as text)

Begin job on node35 on Sat Jan  6 14:28:41 UTC 2007


IDJOB= 247435
IDBENCH= 11125
FILE ID= node35/247435-1168093710

PBS_JOBID= 3476701

Free space on /tmp= 66515 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-8-20-5/rand-8-20-5-18-800-17_ext.xml
COMMAND LINE= /tmp/evaluation/247435-1168093710/CSPtoSAT+minisat /tmp/evaluation/247435-1168093710/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node35/watcher-247435-1168093710 -o ROOT/results/node35/solver-247435-1168093710 -C 1800 -M 900  /tmp/evaluation/247435-1168093710/CSPtoSAT+minisat /tmp/evaluation/247435-1168093710/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  99aedbba3b4279edf60bda79b3a4f8a9

RANDOM SEED= 112186741

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		: 3000.234
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		: 3000.234
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:       1859288 kB
Buffers:          5640 kB
Cached:         121888 kB
SwapCached:       2080 kB
Active:          88692 kB
Inactive:        60040 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1859288 kB
SwapTotal:     4192956 kB
SwapFree:      4190292 kB
Dirty:           47000 kB
Writeback:           0 kB
Mapped:          28288 kB
Slab:            33440 kB
Committed_AS:  3117420 kB
PageTables:       1620 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= 66515 MiB



End job on node35 on Sat Jan  6 14:29:02 UTC 2007