Trace number 247422

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) 17.9233 18.0724

General information on the benchmark

Namerandom/rand-8-20-5/
rand-8-20-5-18-800-19_ext.xml
MD5SUM07cc20594b576bffb0ac8b08e4394825
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 benchmark110.339
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)

0.11	c This is CSPtoSAT+minisat version 0.3
0.11	c (c) 2006 roussel@cril.univ-artois.fr
0.11	
0.11	c This solver internally uses a modified version of MiniSat2 version 061112
0.11	c MiniSat -- Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson
0.11	
0.11	c parsing...
0.64	c preparing clauses for relation R0
1.57	c preparing clauses for relation R1
2.44	c preparing clauses for relation R2
3.30	c preparing clauses for relation R3
4.16	c preparing clauses for relation R4
5.03	c preparing clauses for relation R5
5.89	c preparing clauses for relation R6
6.74	c preparing clauses for relation R7
7.61	c preparing clauses for relation R8
8.48	c preparing clauses for relation R9
9.37	c preparing clauses for relation R10
10.28	c preparing clauses for relation R11
11.23	c preparing clauses for relation R12
12.16	c preparing clauses for relation R13
13.07	c preparing clauses for relation R14
13.94	c preparing clauses for relation R15
14.80	c preparing clauses for relation R16
15.66	c preparing clauses for relation R17
15.91	c instanciating clauses for relation R0 (supports) and variables V0 V1 V3 V5 V6 V10 V13 V15 
16.51	c instanciating clauses for relation R1 (supports) and variables V0 V1 V3 V8 V11 V15 V16 V17 
17.11	c instanciating clauses for relation R2 (supports) and variables V0 V2 V4 V6 V7 V9 V15 V18 
17.67	c instanciating clauses for relation R3 (supports) and variables V0 V4 V6 V8 V13 V17 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/node35/watcher-247422-1168093705 -o ROOT/results/node35/solver-247422-1168093705 -C 1800 -M 900 /tmp/evaluation/247422-1168093705/CSPtoSAT+minisat /tmp/evaluation/247422-1168093705/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 4/73 17288
/proc/meminfo: memFree=1858512/2055920 swapFree=4190292/4192956
[pid=17287] ppid=17282 vsize=496 CPUtime=0
/proc/17287/stat : 17287 (CSPtoSAT+minisa) R 17282 17287 17175 0 -1 4194304 51 0 0 0 0 0 0 0 20 0 1 0 157766157 507904 36 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 1463076 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 124 36 29 52 0 19 0

[startup+0.104899 s]
/proc/loadavg: 0.24 1.02 1.60 4/73 17288
/proc/meminfo: memFree=1858512/2055920 swapFree=4190292/4192956
[pid=17287] ppid=17282 vsize=10008 CPUtime=0.09
/proc/17287/stat : 17287 (CSPtoSAT+minisa) R 17282 17287 17175 0 -1 4194304 2500 0 0 0 8 1 0 0 20 0 1 0 157766157 10248192 1533 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 4155992210 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 2502 1533 698 52 0 870 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 10008

[startup+0.512945 s]
/proc/loadavg: 0.24 1.02 1.60 4/73 17288
/proc/meminfo: memFree=1858512/2055920 swapFree=4190292/4192956
[pid=17287] ppid=17282 vsize=12300 CPUtime=0.5
/proc/17287/stat : 17287 (CSPtoSAT+minisa) R 17282 17287 17175 0 -1 4194304 3261 0 0 0 49 1 0 0 25 0 1 0 157766157 12595200 2148 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 4157739018 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 3075 2148 698 52 0 1443 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 12300

[startup+1.33304 s]
/proc/loadavg: 0.24 1.02 1.60 3/73 17288
/proc/meminfo: memFree=1789328/2055920 swapFree=4190292/4192956
[pid=17287] ppid=17282 vsize=50176 CPUtime=1.31
/proc/17287/stat : 17287 (CSPtoSAT+minisa) R 17282 17287 17175 0 -1 4194304 18813 0 0 0 123 8 0 0 25 0 1 0 157766157 51380224 9566 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 1897089 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 12544 9566 702 52 0 10912 0
Current children cumulated CPU time (s) 1.31
Current children cumulated vsize (KiB) 50176

[startup+2.96924 s]
/proc/loadavg: 0.24 1.02 1.60 3/73 17288
/proc/meminfo: memFree=1722384/2055920 swapFree=4190292/4192956
[pid=17287] ppid=17282 vsize=124872 CPUtime=2.94
/proc/17287/stat : 17287 (CSPtoSAT+minisa) R 17282 17287 17175 0 -1 4194304 49823 0 0 0 272 22 0 0 25 0 1 0 157766157 127868928 24154 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 134579993 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 31218 24154 702 52 0 29586 0
Current children cumulated CPU time (s) 2.94
Current children cumulated vsize (KiB) 124872

[startup+6.24862 s]
/proc/loadavg: 0.38 1.04 1.60 3/73 17288
/proc/meminfo: memFree=1471312/2055920 swapFree=4190292/4192956
[pid=17287] ppid=17282 vsize=272700 CPUtime=6.19
/proc/17287/stat : 17287 (CSPtoSAT+minisa) R 17282 17287 17175 0 -1 4194304 111619 0 0 0 571 48 0 0 25 0 1 0 157766157 279244800 53106 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 1928838 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 68175 53106 702 52 0 66543 0
Current children cumulated CPU time (s) 6.19
Current children cumulated vsize (KiB) 272700

[startup+12.7154 s]
/proc/loadavg: 0.51 1.05 1.60 3/73 17288
/proc/meminfo: memFree=1003728/2055920 swapFree=4190292/4192956
[pid=17287] ppid=17282 vsize=535832 CPUtime=12.59
/proc/17287/stat : 17287 (CSPtoSAT+minisa) R 17282 17287 17175 0 -1 4194304 220651 0 0 0 1158 101 0 0 25 0 1 0 157766157 548691968 104662 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 1894229 0 0 4096 0 0 0 0 17 1 0 0
/proc/17287/statm: 133958 104662 702 52 0 132326 0
Current children cumulated CPU time (s) 12.59
Current children cumulated vsize (KiB) 535832



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+17.95 s]
/proc/loadavg: 0.63 1.07 1.60 2/68 17297
/proc/meminfo: memFree=1089904/2055920 swapFree=4190292/4192956
[pid=17287] ppid=17282 vsize=933520 CPUtime=17.79
/proc/17287/stat : 17287 (CSPtoSAT+minisa) R 17282 17287 17175 0 -1 4194304 341673 0 0 0 1626 153 0 0 25 0 1 0 157766157 955924480 192609 18446744073709551615 134512640 134728504 4294956704 18446744073709551615 1901517 0 0 4096 0 0 0 0 17 0 0 0
/proc/17287/statm: 233380 192615 706 52 0 231748 0
Current children cumulated CPU time (s) 17.79
Current children cumulated vsize (KiB) 933520

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 18.0724
CPU time (s): 17.9233
CPU user time (s): 16.2685
CPU system time (s): 1.65475
CPU usage (%): 99.1747
Max. virtual memory (cumulated for all children) (KiB): 933520

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 16.2685
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= 341694
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= 11
involuntary context switches= 372

runsolver used 0.016997 s user time and 0.06199 s system time

The end

Launcher Data (download as text)

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


IDJOB= 247422
IDBENCH= 11124
FILE ID= node35/247422-1168093705

PBS_JOBID= 3476700

Free space on /tmp= 66515 MiB

BENCH NAME= HOME/pub/bench/CPAI06/random/rand-8-20-5/rand-8-20-5-18-800-19_ext.xml
COMMAND LINE= /tmp/evaluation/247422-1168093705/CSPtoSAT+minisat /tmp/evaluation/247422-1168093705/unknown.xml
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node35/watcher-247422-1168093705 -o ROOT/results/node35/solver-247422-1168093705 -C 1800 -M 900  /tmp/evaluation/247422-1168093705/CSPtoSAT+minisat /tmp/evaluation/247422-1168093705/unknown.xml

META MD5SUM SOLVER= 0ab327eaa5be249b47b2f4b19927f0b0
MD5SUM BENCH=  07cc20594b576bffb0ac8b08e4394825

RANDOM SEED= 76357925

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:       1859280 kB
Buffers:          5640 kB
Cached:         121888 kB
SwapCached:       2080 kB
Active:          88700 kB
Inactive:        60040 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1859280 kB
SwapTotal:     4192956 kB
SwapFree:      4190292 kB
Dirty:           47000 kB
Writeback:           0 kB
Mapped:          28312 kB
Slab:            33440 kB
Committed_AS:  3117420 kB
PageTables:       1640 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 14:29:05 UTC 2007