Trace number 211414

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) 3.9704 4.05046

General information on the benchmark

NamepseudoSeries/mpsReduced/
mps-red-berlin-5-8_0.xml
MD5SUMe04eb38d7b48cb15a8024902e24bdc0f
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark1350.74
SatisfiableYES
(Un)Satisfiability was provedYES
Number of variables9464
Number of constraints1821
Maximum constraint arity61
Maximum domain size2
Number of constraints which are defined in extension0
Number of constraints which are defined in intension1821
Global constraints used (with number of constraints)

Solver Data (download as text)

0.01	c 
0.01	c Parsing xml file
0.01	c 	domains...............    0
0.01	c 	variables............. 0.19
0.21	c 	predicates............ 0.03
0.23	c 	constraints........... 1.75
1.99	c Allocating memory
1.99	c 
1.99	c time limit = -1
1.99	c heuristic = dom/wdeg
1.99	c restart policy = No restart
1.99	c 
1.99	c Solving
1.99	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/node6/watcher-211414-1168208332 -o ROOT/results/node6/solver-211414-1168208332 -C 1800 -M 900 /tmp/evaluation/211414-1168208332/mistral/bin/solver /tmp/evaluation/211414-1168208332/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: 0.92 0.98 0.99 5/82 22598
/proc/meminfo: memFree=1368648/2055924 swapFree=4165672/4192956
[pid=22597] ppid=22586 vsize=7184 CPUtime=0
/proc/22597/stat : 22597 (solver) R 22586 22597 22116 0 -1 4194304 832 0 0 0 0 0 0 0 18 0 1 0 169228662 7356416 800 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 2623099 0 0 4096 0 0 0 0 17 1 0 0
/proc/22597/statm: 1796 800 688 92 0 140 0

[startup+0.105072 s]
/proc/loadavg: 0.92 0.98 0.99 5/82 22598
/proc/meminfo: memFree=1368648/2055924 swapFree=4165672/4192956
[pid=22597] ppid=22586 vsize=8108 CPUtime=0.09
/proc/22597/stat : 22597 (solver) R 22586 22597 22116 0 -1 4194304 1068 0 0 0 9 0 0 0 18 0 1 0 169228662 8302592 1036 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134575837 0 0 4096 0 0 0 0 17 1 0 0
/proc/22597/statm: 2027 1036 688 92 0 371 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 8108

[startup+0.514121 s]
/proc/loadavg: 0.92 0.98 0.99 5/82 22598
/proc/meminfo: memFree=1368648/2055924 swapFree=4165672/4192956
[pid=22597] ppid=22586 vsize=16744 CPUtime=0.5
/proc/22597/stat : 22597 (solver) R 22586 22597 22116 0 -1 4194304 3266 0 0 0 48 2 0 0 22 0 1 0 169228662 17145856 3234 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4159425118 0 0 4096 0 0 0 0 17 1 0 0
/proc/22597/statm: 4186 3234 713 92 0 2530 0
Current children cumulated CPU time (s) 0.5
Current children cumulated vsize (KiB) 16744

[startup+1.34122 s]
/proc/loadavg: 0.92 0.98 0.99 3/86 22609
/proc/meminfo: memFree=1343336/2055924 swapFree=4165672/4192956
[pid=22597] ppid=22586 vsize=19624 CPUtime=1.32
/proc/22597/stat : 22597 (solver) R 22586 22597 22116 0 -1 4194304 3983 0 0 0 130 2 0 0 25 0 1 0 169228662 20094976 3951 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 4159425118 0 0 4096 0 0 0 0 17 1 0 0
/proc/22597/statm: 4906 3951 713 92 0 3250 0
Current children cumulated CPU time (s) 1.32
Current children cumulated vsize (KiB) 19624

[startup+2.98243 s]
/proc/loadavg: 0.92 0.98 0.99 3/86 22609
/proc/meminfo: memFree=994216/2055924 swapFree=4165672/4192956
[pid=22597] ppid=22586 vsize=579652 CPUtime=2.95
/proc/22597/stat : 22597 (solver) R 22586 22597 22116 0 -1 4194304 118937 0 0 0 229 66 0 0 25 0 1 0 169228662 593563648 118905 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 2623099 0 0 4096 0 0 0 0 17 1 0 0
/proc/22597/statm: 144913 118905 718 92 0 143257 0
Current children cumulated CPU time (s) 2.95
Current children cumulated vsize (KiB) 579652



Maximum VSize exceeded: sending SIGTERM then SIGKILL

[startup+3.90553 s]
/proc/loadavg: 1.17 1.03 1.01 2/81 22610
/proc/meminfo: memFree=761360/2055924 swapFree=4165672/4192956
[pid=22597] ppid=22586 vsize=956916 CPUtime=3.82
/proc/22597/stat : 22597 (solver) R 22586 22597 22116 0 -1 4194304 213249 0 0 0 262 120 0 0 25 0 1 0 169228662 979881984 213217 18446744073709551615 134512640 134893201 4294956688 18446744073709551615 134543906 0 0 4096 0 0 0 0 17 0 0 0
/proc/22597/statm: 239266 213224 718 92 0 237610 0
Current children cumulated CPU time (s) 3.82
Current children cumulated vsize (KiB) 956916

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

Child ended because it received signal 15 (SIGTERM)
Real time (s): 4.05046
CPU time (s): 3.9704
CPU user time (s): 2.6256
CPU system time (s): 1.3448
CPU usage (%): 98.0233
Max. virtual memory (cumulated for all children) (KiB): 956916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.6256
system time used= 1.34479
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 213269
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= 12
involuntary context switches= 205

runsolver used 0.014997 s user time and 0.017997 s system time

The end

Launcher Data (download as text)

Begin job on node6 on Sun Jan  7 22:18:52 UTC 2007


IDJOB= 211414
IDBENCH= 4692
FILE ID= node6/211414-1168208332

PBS_JOBID= 3480582

Free space on /tmp= 66544 MiB

BENCH NAME= HOME/pub/bench/CPAI06/pseudoSeries/mpsReduced/mps-red-berlin-5-8_0.xml
COMMAND LINE= /tmp/evaluation/211414-1168208332/mistral/bin/solver /tmp/evaluation/211414-1168208332/unknown.xml -v 1
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node6/watcher-211414-1168208332 -o ROOT/results/node6/solver-211414-1168208332 -C 1800 -M 900  /tmp/evaluation/211414-1168208332/mistral/bin/solver /tmp/evaluation/211414-1168208332/unknown.xml -v 1

META MD5SUM SOLVER= cb80ed4ac975bdc0101f830a5b1b8f77
MD5SUM BENCH=  e04eb38d7b48cb15a8024902e24bdc0f

RANDOM SEED= 655751096

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		: 3000.240
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		: 3000.240
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:      2055924 kB
MemFree:       1368928 kB
Buffers:         74428 kB
Cached:         492240 kB
SwapCached:       2424 kB
Active:         134636 kB
Inactive:       468780 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055924 kB
LowFree:       1368928 kB
SwapTotal:     4192956 kB
SwapFree:      4165672 kB
Dirty:            9616 kB
Writeback:           0 kB
Mapped:          46688 kB
Slab:            68440 kB
Committed_AS:  4812448 kB
PageTables:       2276 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= 66544 MiB



End job on node6 on Sun Jan  7 22:18:56 UTC 2007