Trace number 211674

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
Mistral 2006-12-04? (MO) 4.90325 4.95747

General information on the benchmark

NamepseudoSeries/mpsReduced/
mps-red-neos20.xml
MD5SUMad8ca07b5db74c307d79945a4c71bcdb
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark7.12692
SatisfiableNO
(Un)Satisfiability was provedNO
Number of variables8411
Number of constraints3209
Maximum constraint arity270
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension3209
Global constraints used (with number of constraints)

Solver Data (download as text)

0.10	c 
0.10	c Parsing xml file
0.10	c 	domains...............    0
0.10	c 	variables............. 0.17
0.19	c 	predicates............ 0.51
0.70	c 	constraints........... 1.39
2.10	c Allocating memory
2.10	c 
2.10	c time limit = -1
2.10	c heuristic = dom/wdeg
2.10	c restart policy = No restart
2.10	c 
2.10	c Solving
2.10	c

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/node11/watcher-211674-1168211339 -o ROOT/results/node11/solver-211674-1168211339 -C 1800 -M 900 /tmp/evaluation/211674-1168211339/mistral/bin/solver /tmp/evaluation/211674-1168211339/unknown.xml -v 1 

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: 1.99 1.99 1.91 2/94 11855
/proc/meminfo: memFree=1370192/2055920 swapFree=4192812/4192956
[pid=11854] ppid=11852 vsize=540 CPUtime=0
/proc/11854/stat : 11854 (solver) R 11852 11854 10178 0 -1 4194304 41 0 0 0 0 0 0 0 19 0 1 0 169529039 552960 26 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 7979812 0 2147483391 4096 0 0 0 0 17 1 0 0
/proc/11854/statm: 135 26 21 92 0 18 0

[startup+0.102387 s]
/proc/loadavg: 1.99 1.99 1.91 2/94 11855
/proc/meminfo: memFree=1370192/2055920 swapFree=4192812/4192956
[pid=11854] ppid=11852 vsize=8120 CPUtime=0.09
/proc/11854/stat : 11854 (solver) R 11852 11854 10178 0 -1 4194304 1096 0 0 0 9 0 0 0 19 0 1 0 169529039 8314880 1064 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4157853706 0 0 4096 0 0 0 0 17 1 0 0
/proc/11854/statm: 2030 1064 692 92 0 374 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8120

[startup+0.510464 s]
/proc/loadavg: 1.99 1.99 1.91 2/94 11855
/proc/meminfo: memFree=1370192/2055920 swapFree=4192812/4192956
[pid=11854] ppid=11852 vsize=11496 CPUtime=0.5
/proc/11854/stat : 11854 (solver) R 11852 11854 10178 0 -1 4194304 1946 0 0 0 50 0 0 0 24 0 1 0 169529039 11771904 1914 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 8446940 0 0 4096 0 0 0 0 17 1 0 0
/proc/11854/statm: 2874 1914 703 92 0 1218 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 11496

[startup+1.33163 s]
/proc/loadavg: 1.99 1.99 1.91 4/94 11855
/proc/meminfo: memFree=1354704/2055920 swapFree=4192812/4192956
[pid=11854] ppid=11852 vsize=22724 CPUtime=1.3
/proc/11854/stat : 11854 (solver) R 11852 11854 10178 0 -1 4194304 4778 0 0 0 129 1 0 0 25 0 1 0 169529039 23269376 4713 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4159425097 0 0 4096 0 0 0 0 17 1 0 0
/proc/11854/statm: 5681 4713 713 92 0 4025 0
Current children cumulated CPU time (s) 1.3
Current children cumulated vsize (KiB) 22724

[startup+2.96896 s]
/proc/loadavg: 1.99 1.99 1.91 3/94 11855
/proc/meminfo: memFree=1233936/2055920 swapFree=4192812/4192956
[pid=11854] ppid=11852 vsize=490556 CPUtime=2.93
/proc/11854/stat : 11854 (solver) R 11852 11854 10178 0 -1 4194304 94046 0 0 0 256 37 0 0 25 0 1 0 169529039 502329344 93817 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 9274545 0 0 4096 0 0 0 0 17 1 0 0
/proc/11854/statm: 122639 93817 718 92 0 120983 0
Current children cumulated CPU time (s) 2.93
Current children cumulated vsize (KiB) 490556



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+4.82333 s]
/proc/loadavg: 1.99 1.99 1.91 3/94 11855
/proc/meminfo: memFree=556824/2055920 swapFree=4192812/4192956
[pid=11854] ppid=11852 vsize=929584 CPUtime=4.77
/proc/11854/stat : 11854 (solver) R 11852 11854 10178 0 -1 4194304 203802 0 0 0 398 79 0 0 25 0 1 0 169529039 951894016 203573 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 8414843 0 0 4096 0 0 0 0 17 1 0 0
/proc/11854/statm: 232396 203573 718 92 0 230740 0
Current children cumulated CPU time (s) 4.77
Current children cumulated vsize (KiB) 929584

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 4.95747
CPU time (s): 4.90325
CPU user time (s): 3.98139
CPU system time (s): 0.921859
CPU usage (%): 98.9064
Max. virtual memory (cumulated for all children) (KiB): 929584

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 3.98139
system time used= 0.921859
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 203802
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= 13
involuntary context switches= 344

runsolver used 0.008998 s user time and 0.023996 s system time

The end

Launcher Data (download as text)

Begin job on node11 on Sun Jan  7 23:09:00 UTC 2007


IDJOB= 211674
IDBENCH= 4712
FILE ID= node11/211674-1168211339

PBS_JOBID= 3480564

Free space on /tmp= 66338 MiB

BENCH NAME= HOME/pub/bench/CPAI06/pseudoSeries/mpsReduced/mps-red-neos20.xml
COMMAND LINE= /tmp/evaluation/211674-1168211339/mistral/bin/solver /tmp/evaluation/211674-1168211339/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node11/watcher-211674-1168211339 -o ROOT/results/node11/solver-211674-1168211339 -C 1800 -M 900  /tmp/evaluation/211674-1168211339/mistral/bin/solver /tmp/evaluation/211674-1168211339/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  ad8ca07b5db74c307d79945a4c71bcdb

RANDOM SEED= 65373407

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		: 3000.261
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	: 5931.00
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		: 3000.261
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:       1370672 kB
Buffers:         33240 kB
Cached:         160560 kB
SwapCached:          0 kB
Active:         503608 kB
Inactive:       125084 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1370672 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            4484 kB
Writeback:           0 kB
Mapped:         461808 kB
Slab:            40336 kB
Committed_AS:  5713932 kB
PageTables:       3200 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= 66338 MiB



End job on node11 on Sun Jan  7 23:09:05 UTC 2007