Trace number 42497

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 NameAnswerObjective functionCPU timeWall clock time
SAT4JPSEUDO 2006.2 HeuristicsOPT-293850 2.54661 1.84282

General information on the benchmark

Namenormalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/
ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-kb2.opb
MD5SUM396a97b3a9140f57450f18f44f605394
Bench CategoryOPT-SMALLINT (optimisation, small integers)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-293850
Best CPU time to get the best result obtained on this benchmark2.54661
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -293850
Optimality of the best value was proved YES
Number of variables1096
Total number of constraints52
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints52
Minimum length of a constraint13
Maximum length of a constraint300
Number of terms in the objective function 48
Biggest coefficient in the objective function 188062
Number of bits for the biggest coefficient in the objective function 18
Sum of the numbers in the objective function 524313
Number of bits of the sum of numbers in the objective function 20
Biggest number in a constraint 262081
Number of bits of the biggest number in a constraint 18
Biggest sum of numbers in a constraint 524520
Number of bits of the biggest sum of numbers20
Number of products (including duplicates)0
Sum of products size (including duplicates)0
Number of different products0
Sum of products size0

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.15	c SAT4J: a SATisfiability library for Java (c) 2004-2006 Daniel Le Berre
0.15	c This is free software under the GNU LGPL licence. See www.sat4j.org for details.
0.15	c no version file found!!!
0.15	c sun.arch.data.model	32
0.15	c java.version	1.5.0_06
0.15	c os.name	Linux
0.15	c os.version	2.6.9-22.EL.rootsmp
0.15	c os.arch	i386
0.15	c Free memory 1548419056
0.15	c Max memory 1551040512
0.15	c Total memory 1551040512
0.15	c Number of processors 2
0.20	c Cutting planes based inference
0.20	c --- Begin Solver configuration ---
0.20	c org.sat4j.minisat.uip.FirstUIP@1df073d
0.20	c org.sat4j.minisat.constraints.PBMaxClauseCardConstrDataStructure@1546e25
0.20	c org.sat4j.minisat.learning.MiniSATLearning@b66cc
0.20	c conflictBoundIncFactor=1.5 learntBoundIncFactor=1.1 initLearntBoundConstraintFactor=10000.0 initConflictBound=100 
0.20	c VSIDS like heuristics from MiniSAT using a heap
0.20	c No reason simplification
0.20	c --- End Solver configuration ---
0.20	c solving ROOT/tmp/node44/42497-1149331251/instance-42497-1149331251.opb
0.20	c reading problem ... 
0.58	c ... done. Time 0.372 ms.
0.58	c #vars     1096
0.58	c #constraints  68
1.00	c SATISFIABLE
1.00	c OPTIMIZING...
1.00	c Got one! Ellapsed CPU time (in seconds):0.796
1.02	o -293847
1.44	c Got one! Ellapsed CPU time (in seconds):1.233
1.44	o -293848
1.76	c Got one! Ellapsed CPU time (in seconds):1.557
1.76	o -293850
1.76	c starts		: 3
1.76	c conflicts		: 121
1.76	c decisions		: 5588
1.76	c propagations		: 11242
1.76	c inspects		: 71509
1.76	c learnt literals	: 0
1.76	c learnt binary clauses	: 0
1.76	c learnt ternary clauses	: 0
1.76	c learnt clauses	: 121
1.76	c root simplifications	: 0
1.76	c removed literals (reason simplification)	: 0
1.76	c reason swapping (by a shorter reason)	: 0
1.76	c Calls to reduceDB	: 0
1.76	c speed (decisions/second)	: 17300.30959752322
1.76	c non guided choices	1205
1.76	s OPTIMUM FOUND
1.77	v -x1 -x2 -x3 x4 x5 -x6 -x7 -x8 -x9 -x10 -x11 -x12 -x13 -x14 -x15 -x16 -x17 -x18 -x19 -x20 -x21 -x22 -x23 -x24 -x25 -x26 -x27 -x28
1.77	v -x29 -x30 -x31 -x32 -x33 -x34 -x35 -x36 -x37 -x38 -x39 -x40 -x41 -x42 -x43 -x44 -x45 -x46 -x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54
1.77	v -x55 -x56 -x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 x77 -x78 -x79 -x80
1.77	v -x81 -x82 -x83 -x84 -x85 -x86 -x87 -x88 -x89 -x90 -x91 -x92 -x93 -x94 -x95 -x96 -x97 -x98 -x99 -x100 -x101 -x102 -x103 -x104
1.77	v -x105 -x106 -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 -x116 -x117 -x118 -x119 -x120 -x121 -x122 -x123 -x124 -x125
1.77	v -x126 -x127 -x128 -x129 -x130 -x131 -x132 -x133 -x134 -x135 -x136 -x137 -x138 -x139 -x140 -x141 -x142 -x143 -x144 -x145 -x146
1.77	v -x147 -x148 -x149 -x150 x151 -x152 -x153 -x154 -x155 -x156 -x157 -x158 -x159 -x160 -x161 -x162 -x163 -x164 x165 -x166 -x167
1.77	v -x168 -x169 -x170 x171 -x172 x173 -x174 -x175 -x176 -x177 -x178 -x179 -x180 x181 -x182 -x183 -x184 -x185 -x186 -x187 -x188
1.77	v -x189 -x190 -x191 -x192 -x193 -x194 -x195 -x196 -x197 -x198 -x199 -x200 -x201 -x202 -x203 -x204 -x205 -x206 -x207 -x208 -x209
1.77	v -x210 -x211 -x212 -x213 -x214 -x215 -x216 -x217 -x218 -x219 -x220 -x221 -x222 -x223 -x224 -x225 -x226 -x227 -x228 -x229 -x230
1.77	v -x231 -x232 -x233 -x234 -x235 -x236 -x237 -x238 -x239 -x240 -x241 -x242 -x243 -x244 -x245 -x246 -x247 -x248 -x249 -x250 -x251
1.77	v -x252 -x253 -x254 -x255 x256 x257 x258 x259 x260 -x261 -x262 -x263 x264 -x265 -x266 -x267 -x268 -x269 -x270 -x271 -x272 -x273
1.77	v -x274 -x275 -x276 -x277 -x278 -x279 -x280 -x281 -x282 -x283 -x284 -x285 -x286 -x287 -x288 x289 x290 x291 x292 -x293 -x294
1.77	v -x295 -x296 -x297 -x298 -x299 -x300 -x301 -x302 -x303 -x304 -x305 -x306 -x307 -x308 -x309 -x310 -x311 -x312 -x313 -x314 -x315
1.77	v -x316 -x317 -x318 -x319 -x320 -x321 -x322 -x323 -x324 -x325 -x326 -x327 -x328 x329 -x330 -x331 -x332 -x333 -x334 -x335 -x336
1.77	v -x337 -x338 -x339 -x340 -x341 -x342 -x343 -x344 -x345 -x346 -x347 -x348 -x349 -x350 -x351 -x352 -x353 -x354 -x355 -x356 -x357
1.77	v -x358 -x359 -x360 -x361 -x362 -x363 -x364 -x365 -x366 -x367 -x368 -x369 -x370 -x371 -x372 -x373 -x374 -x375 -x376 -x377 -x378
1.77	v -x379 -x380 -x381 -x382 -x383 -x384 -x385 -x386 -x387 -x388 -x389 -x390 -x391 -x392 -x393 -x394 -x395 -x396 -x397 -x398 -x399
1.77	v -x400 -x401 -x402 -x403 -x404 -x405 -x406 -x407 -x408 -x409 -x410 -x411 -x412 -x413 -x414 -x415 -x416 -x417 -x418 -x419 -x420
1.77	v -x421 -x422 -x423 -x424 -x425 -x426 -x427 -x428 -x429 -x430 -x431 -x432 -x433 -x434 -x435 -x436 -x437 -x438 -x439 -x440 -x441
1.77	v -x442 -x443 -x444 -x445 -x446 -x447 -x448 -x449 -x450 -x451 -x452 -x453 -x454 -x455 -x456 -x457 -x458 -x459 -x460 -x461 -x462
1.77	v -x463 -x464 -x465 -x466 -x467 -x468 -x469 -x470 -x471 -x472 -x473 -x474 -x475 -x476 -x477 x478 -x479 x480 -x481 -x482 -x483
1.77	v -x484 -x485 -x486 -x487 -x488 -x489 -x490 -x491 -x492 -x493 -x494 -x495 -x496 -x497 -x498 -x499 -x500 -x501 -x502 -x503 -x504
1.77	v -x505 -x506 -x507 -x508 x509 x510 -x511 -x512 -x513 -x514 -x515 -x516 -x517 -x518 -x519 -x520 -x521 -x522 -x523 -x524 -x525
1.77	v -x526 -x527 -x528 -x529 -x530 -x531 -x532 -x533 -x534 -x535 -x536 -x537 -x538 -x539 -x540 -x541 -x542 -x543 -x544 -x545 -x546
1.77	v -x547 -x548 -x549 -x550 -x551 -x552 -x553 -x554 -x555 -x556 -x557 -x558 -x559 -x560 -x561 -x562 -x563 -x564 -x565 -x566 -x567
1.77	v -x568 -x569 -x570 -x571 -x572 -x573 -x574 -x575 -x576 -x577 -x578 -x579 -x580 -x581 -x582 -x583 -x584 -x585 -x586 -x587 -x588
1.77	v -x589 -x590 -x591 -x592 -x593 -x594 -x595 -x596 -x597 -x598 -x599 -x600 -x601 -x602 -x603 -x604 -x605 -x606 -x607 -x608 -x609
1.77	v -x610 -x611 -x612 -x613 -x614 x615 x616 x617 x618 x619 x620 x621 x622 x623 x624 x625 x626 x627 -x628 -x629 -x630 x631 x632 x633
1.77	v x634 x635 x636 x637 x638 x639 x640 x641 x642 x643 -x644 -x645 x646 x647 x648 x649 x650 x651 x652 x653 x654 x655 x656 x657 x658
1.77	v -x659 -x660 x661 x662 x663 x664 x665 x666 x667 x668 -x669 x670 -x671 x672 x673 x674 -x675 x676 x677 x678 x679 x680 x681 x682
1.77	v x683 x684 -x685 x686 x687 x688 -x689 x690 -x691 -x692 -x693 -x694 -x695 -x696 -x697 -x698 -x699 -x700 -x701 -x702 -x703 -x704
1.77	v -x705 -x706 -x707 x708 x709 x710 x711 -x712 x713 x714 x715 x716 x717 x718 x719 x720 x721 x722 -x723 -x724 -x725 -x726 -x727
1.77	v -x728 -x729 -x730 -x731 -x732 -x733 -x734 -x735 -x736 -x737 -x738 -x739 -x740 -x741 -x742 -x743 -x744 -x745 -x746 -x747 -x748
1.77	v x749 x750 x751 -x752 x753 x754 -x755 -x756 -x757 -x758 -x759 -x760 -x761 -x762 -x763 -x764 -x765 -x766 -x767 -x768 -x769 -x770
1.77	v -x771 -x772 x773 -x774 x775 -x776 -x777 -x778 x779 -x780 -x781 -x782 -x783 -x784 -x785 -x786 -x787 -x788 -x789 -x790 -x791
1.77	v -x792 -x793 -x794 -x795 -x796 x797 x798 x799 x800 x801 x802 x803 x804 x805 x806 x807 x808 x809 x810 x811 x812 x813 -x814 -x815
1.77	v -x816 -x817 -x818 -x819 -x820 -x821 -x822 -x823 -x824 -x825 -x826 x827 x828 x829 x830 x831 x832 x833 x834 x835 x836 x837 x838
1.77	v x839 -x840 -x841 x842 -x843 -x844 -x845 -x846 -x847 -x848 -x849 -x850 -x851 -x852 -x853 -x854 -x855 -x856 x857 x858 x859 -x860
1.77	v -x861 -x862 -x863 x864 -x865 -x866 x867 -x868 -x869 -x870 -x871 x872 -x873 -x874 -x875 -x876 -x877 -x878 -x879 -x880 -x881
1.77	v -x882 -x883 -x884 -x885 -x886 x887 x888 x889 x890 x891 x892 x893 -x894 -x895 x896 x897 -x898 -x899 -x900 -x901 x902 x903 -x904
1.77	v -x905 -x906 -x907 -x908 -x909 -x910 -x911 -x912 -x913 -x914 -x915 -x916 -x917 -x918 -x919 -x920 -x921 -x922 -x923 -x924 -x925
1.77	v -x926 -x927 -x928 -x929 -x930 -x931 -x932 -x933 -x934 -x935 -x936 x937 -x938 x939 -x940 -x941 -x942 -x943 -x944 -x945 -x946
1.77	v -x947 x948 -x949 -x950 -x951 -x952 -x953 -x954 -x955 -x956 -x957 x958 x959 -x960 -x961 -x962 -x963 -x964 -x965 -x966 x967
1.77	v -x968 x969 -x970 -x971 -x972 -x973 -x974 -x975 -x976 -x977 -x978 -x979 -x980 -x981 -x982 -x983 -x984 -x985 -x986 -x987 -x988
1.77	v -x989 -x990 -x991 -x992 -x993 -x994 -x995 -x996 -x997 -x998 -x999 -x1000 x1001 -x1002 -x1003 -x1004 -x1005 -x1006 -x1007
1.77	v -x1008 -x1009 -x1010 -x1011 -x1012 -x1013 -x1014 -x1015 -x1016 -x1017 -x1018 -x1019 -x1020 -x1021 -x1022 -x1023 -x1024
1.77	v -x1025 -x1026 -x1027 x1028 x1029 -x1030 -x1031 -x1032 -x1033 -x1034 -x1035 -x1036 -x1037 -x1038 -x1039 -x1040 -x1041 -x1042
1.77	v -x1043 x1044 -x1045 -x1046 -x1047 -x1048 -x1049 -x1050 -x1051 -x1052 -x1053 -x1054 -x1055 -x1056 -x1057 -x1058 -x1059
1.77	v x1060 -x1061 -x1062 -x1063 -x1064 -x1065 -x1066 -x1067 -x1068 -x1069 -x1070 -x1071 -x1072 -x1073 -x1074 -x1075 -x1076
1.77	v -x1077 -x1078 -x1079 -x1080 -x1081 -x1082 -x1083 -x1084 -x1085 -x1086 -x1087 -x1088 -x1089 -x1090 -x1091 -x1092 -x1093
1.77	v -x1094 -x1095 -x1096
1.77	c objective function=-293850
1.77	c Total wall clock time (ms): 1.568

Verifier Data (download as text)

OK	-293850

Watcher Data (download as text)

Enforcing CPU limit (will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime (will send SIGXCPU) limit: 1830 seconds
Enforcing Stack size limit: 67108864 bytes
Enforcing memory limit (will send SIGKILL): 1843200 Kb
Enforcing VSIZE limit: 1887436800 bytes
runsolver version 3.0.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node44/watcher-42497-1149331251 -o ROOT/results/node44/solver-42497-1149331251 -C 1800 -M 1800 -S 64 java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node44/42497-1149331251/instance-42497-1149331251.opb 252446117 

Current StackSize limit: 67108864 bytes

/proc/loadavg: 0.92 0.98 0.97 2/64 21521
/proc/meminfo: memFree=1774368/2055920 swapFree=4181400/4192956
[pid=21521] ppid=21519 vsize=168 CPUtime=0
/proc/21521/stat : 21521 (java) R 21519 21521 21475 0 -1 0 39 0 0 0 0 0 0 0 19 0 1 0 198791969 172032 23 18446744073709551615 134512640 134570276 4294956608 18446744073709551615 11281188 0 0 4096 0 0 0 0 17 1 0 0
/proc/21521/statm: 42 23 18 14 0 2 0

Child status: 30
Real time (s): 1.84282
CPU time (s): 2.54661
CPU user time (s): 2.39164
CPU system time (s): 0.154976
CPU usage (%): 138.191
Max. virtual memory (cumulated for all children) (Kb): 0

Launcher Data (download as text)

Begin job on node44 on Sat Jun  3 10:40:51 UTC 2006


FILE ID= 42497-1149331251

PBS_JOBID= 309872

BENCH NAME= HOME/pub/bench/PB06//final/normalized-PB06/OPT-SMALLINT/reduced/mps-v2-20-10/ftp.netlib.org/lp/data/normalized-reduced-mps-v2-20-10-kb2.opb
COMMAND LINE= java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node44/42497-1149331251/instance-42497-1149331251.opb 252446117
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node44/watcher-42497-1149331251 -o ROOT/results/node44/solver-42497-1149331251 -C 1800 -M 1800 -S 64  java -server -Xms1500M -Xmx1500M -jar ROOT/solvers/PB/PB06final/user5/sat4jPseudoHeuristics.jar ROOT/tmp/node44/42497-1149331251/instance-42497-1149331251.opb 252446117

MD5SUM SOLVER= 3cef94aa015dc0dd234d31843a257d70
MD5SUM BENCH=  396a97b3a9140f57450f18f44f605394

RANDOM SEED= 252446117


/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	: 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		: 3000.261
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:       1774576 kB
Buffers:         16444 kB
Cached:         200400 kB
SwapCached:       3272 kB
Active:          40220 kB
Inactive:       185420 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1774576 kB
SwapTotal:     4192956 kB
SwapFree:      4181400 kB
Dirty:             200 kB
Writeback:           0 kB
Mapped:          14948 kB
Slab:            41664 kB
Committed_AS:   313748 kB
PageTables:       1412 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB


End job on node44 on Sat Jun  3 10:40:53 UTC 2006